MGI PHARMA INC
10-Q, EX-10.1, 2000-11-14
PHARMACEUTICAL PREPARATIONS
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                                                                    EXHIBIT 10.1
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                            ASSET PURCHASE AGREEMENT

                  This ASSET PURCHASE AGREEMENT dated as of October 26, 2000
(this "Agreement") by and between MedImmune Oncology, Inc., a Delaware
corporation ("Seller") and MGI Pharma, Inc., a Minnesota corporation ("Buyer").
Seller and Buyer may each be referred to herein individually as a "Party" and
collectively as the "Parties".

                              W I T N E S S E T H:

                  WHEREAS, Seller is engaged in, among other things, the
marketing and sale of altretamine products for human use marketed under the
Hexalen(R) brand name; and

                  WHEREAS, Buyer desires to purchase all of the assets of Seller
relating exclusively to the Product (as hereinafter defined) in the Territory
(as hereinafter defined), and Seller desires to sell such assets to Buyer, upon
the terms and subject to the conditions hereinafter set forth;

                  NOW, THEREFORE, in consideration of the foregoing premises and
the representations, warranties, covenants and agreements herein contained, the
Parties hereto, intending to be legally bound, agree as follows:

                                   ARTICLE 1

                                   DEFINITIONS

                  Whenever used in this Agreement, unless otherwise clearly
indicated by the context, the terms defined below shall have the indicated
meanings:

                  "Affiliate" shall mean, with respect to any Person, any Person
which directly or indirectly through stock ownership or through other
arrangements either controls, or is controlled by or is under common control
with, such Person.

                  "Aggrieved Party" shall have the meaning set forth in Section
8.2.

                  "Allocation Statement" shall have the meaning set forth in
Section 2.9.

                  "Applicable Laws" shall mean, with respect to the Purchased
Assets in the Territory, all laws, treaties, statutes, ordinances, judgments,
decrees, rules, injunctions, writs, regulations, binding arbitration rulings,
orders, judicial or administrative interpretations, of any Governmental
Authority having jurisdiction over the Purchased Assets in the Territory.

                  "Assumed Agreements" shall mean those agreements listed in
Exhibit B hereto between Seller and certain third parties, to the extent that
such agreements relate to the Product.

                  "Assumed Liabilities" shall mean (a) all future obligations
relating exclusively to the Product that are required to be performed and
fulfilled after the Closing under the terms of
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the Assumed Agreements; (b) except to the extent Buyer is specifically entitled
to reimbursement pursuant to the terms of Section 2.10, obligations for the
return of Product commencing on the Closing Date; (c) state and federal
Medicaid/Medicare rebates, managed care and administrative fees in connection
with Product sold in the Territory by Buyer commencing on the Closing Date; (d)
all customer chargebacks and similar payments to customers in connection with
Product sold in the Territory commencing on the Closing Date; (e) all product
liability or intellectual property infringement claims or lawsuits relating to
the occurrences of injuries caused by Product sold by Buyer or caused by the
Purchased Assets commencing on the Closing Date; and (f) all other costs and
claims relating to the Product or the Purchased Assets arising on or after the
Closing Date.

                  "Closing" shall have the meaning set forth in Section 2.3.

                  "Closing Date" shall have the meaning set forth in Section
2.3.

                  "Code" shall mean the U.S. Internal Revenue Code of 1986, as
amended.

                  "Commercially Reasonable Efforts" shall mean reasonable
efforts and resources at least equal to those normally used by a Party for a
product owned by it or to which it has substantial rights and which has a
similar commercial potential.

                  "Contract Year" shall mean the twelve (12) month period
commencing on the Closing Date and each successive twelve (12) month period
thereafter, and "Contract Year One" shall mean the twelve (12) month period
commencing on the Closing Date, "Contract Year Two" shall mean the twelve (12)
month period commencing on the first anniversary of the Closing Date and so on
through and including Contract Year Ten.

                  "Costs" shall have the meaning set forth in Section 8.1.

                  "Encumbrances" shall mean all claims, security interests,
liens, pledges, charges, escrows, rights of first refusal, mortgages,
hypothecations, indentures, security agreements or any other encumbrances of any
kind, whether existing now or by reason of acceleration because of the
conveyance of the Purchased Assets.

                  "FDA" shall mean the United States Food and Drug
Administration.

                  "Fixed Payments" shall mean the fixed payments set forth in
Part I of Exhibit A hereto.

                  "Fixed Payment Quarter" shall mean the three (3) month period
commencing on the first day of the first full month after the Closing Date and
each of the next five successive three (3) month periods thereafter, and "Fixed
Payment Quarter One" shall mean the first three (3) month period commencing on
the first day of the first full month after the Closing Date, "Fixed Payment
Quarter Two" shall mean the three (3) month period commencing on the day after
the expiration of Contract Quarter One and so on through Contract Quarter Six.

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                  "Governmental Authority" shall mean any governmental
department, commission, board, bureau, agency or court, including but not
limited to any federal, state, district, territory, possession or commonwealth
instrumentality.

                  "Included Intellectual Property" shall mean (a) all Included
Know-How; (b) all Trademarks; (c) all copyrights, copyright registrations and
applications for registration, inventions and all other intellectual property
rights, whether registered or not, in each case in this clause (c) which are
owned by Seller and exclusively related to the Product and in each case subject
to the terms of the Assumed Agreements.

                  "Included Know-How" shall mean any and all Know-How owned and
held by Seller exclusively related to the Product.

                  "Indemnifying Party" shall have the meaning set forth in
Section 8.2(a).

                  "IND" shall mean Investigational New Drug application filed
with the FDA.

                  "Indicia" shall have the meaning set forth in Section 6.5.

                  "Inventory" shall mean with respect to Seller those
inventories in the Territory as of the Closing Date which are listed on Exhibit
C hereto.

                  "Know-How" shall mean any and all product specifications,
processes, product designs, plans, trade secrets, ideas, concepts,
manufacturing, engineering and other manuals and drawings, chemical,
pharmacological, toxicological, pharmaceutical, physical and analytical, safety,
quality assurance, quality control and clinical data, technical information,
data, research records, all promotional literature, customer and supplier lists
and similar data and information, and all other confidential or proprietary
technical and business information.

                  "Material Adverse Effect" shall mean any event, circumstance
or effect that is materially adverse to the Purchased Assets or the business,
assets, operations, results of operations or financial condition of the
manufacture, distribution or sale of any of the Product, taken as a whole, other
than any event, change, circumstance or effect relating (a) to the economy in
general, (b) in general to the industries in which the Product is sold and not
specifically relating to the Product; provided that the Product, taken as a
whole, is not materially disproportionately affected as compared to other
Persons engaged in such industry by such event, change, circumstance or effect
or (c) changes, circumstances and effects relating to the announcement of the
transactions contemplated by this Agreement.

                  "Minimum Loss" shall have the meaning set forth in Section
8.3.

                  "Net Sales" shall mean the gross amount invoiced for any and
all Product by Buyer or its licensees or sublicensees, or Affiliates of any of
the foregoing less returns and less the following amounts to the extent deducted
from or on such invoice or absorbed or accrued by Buyer or its licensees or
sublicensees, or Affiliates of any of the foregoing: (a) customary quantity,
trade and/or cash discounts, chargebacks, returns, allowances, rebates
(including any and all federal, state or local government rebates, e.g.,
Medicaid rebates) and price adjustments allowed or given; and (b) all
transportation and handling charges, sales and other excise Taxes

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and duties directly related to the sale, to the extent such items are included
in the gross invoice price. If the Product is combined with one or more other
active ingredients, Net Sales shall mean the gross amount of such Product
invoiced by Buyer and its licensees or sublicensees, or any Affiliates of the
foregoing, less all the allowances, adjustments, discounts, taxes, duties and
other charges referred to in clauses (a) and (b) above, multiplied by a
fraction, the numerator of which shall be the manufacturing cost or acquisition
cost, as applicable, of the Product included in such combination product and the
denominator of which shall be the manufacturing cost or acquisition cost, as
applicable, of all active ingredients in such combination product, including the
Product.

                  "Permitted Encumbrances" shall have the meaning set forth in
Section 3.3(b).

                  "Person" shall mean an individual, a corporation, a limited
liability company, a partnership, an association, a trust or other entity or
organization, including a government or political subdivision or an agency or
instrumentality thereof.

                  "Prime Rate" shall mean the rate of interest publicly
announced by the Chase Manhattan Bank in New York City (or its successor) from
time to time as its prime, base or reference rate.

                  "Product" shall mean altretamine or a product containing
altretamine.

                  "Purchase Price" shall have the meaning set forth in Section
2.1.

                  "Purchased Assets" shall mean, collectively, in each case
relating exclusively to the Product: (i) the Included Intellectual Property,
(ii) historical sales data and customer lists, (iii) marketing and promotional
materials and plans, (iv) the Inventory, (v) all goodwill related exclusively to
the Product, and (vi) subject to transfer thereof in accordance herewith (A) all
transferable licenses, permits or other Governmental Authority authorizations
exclusively relating to the Product, including the Regulatory Approvals and all
regulatory filings, documents and correspondence relating to the Product, and
(B) the rights and future obligations of Seller relating exclusively to the
Product under the Assumed Agreements.

                  "Regulatory Approvals" shall mean all authorizations by the
appropriate Governmental Authorities which are held by Seller and required for
the development, manufacture (other than manufacturing facilities licenses,
approvals or authorizations), marketing, promotion, pricing and sale of the
Product in the Territory, including effective INDs and pending or approved New
Drug Applications for the Product which are owned by Seller, together with all
supplements and licenses exclusively related to the Product in the Territory.

                  "Royalty Payments" shall mean the royalty payments set forth
in Part II of Exhibit A hereto.

                  "Taxes" (and with correlative meanings, "Tax" and "Taxable")
shall mean all taxes of any kind imposed by a federal, state, local or foreign
Governmental Authority, including but not limited to income, gross receipts,
sales, use, ad valorem, value added, intangibles, franchise, profits, license,
excise, stamp, premium, property, transfer or windfall profits taxes, customs,
duties or similar fees, assessments or charges of any kind whatsoever, together
with any

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interest and any penalties, additions to tax or additional amounts imposed by
such Governmental Authority with respect to such amounts.

                  "Termination Date" shall have the meaning set forth in Section
9.1.

                  "Territory" shall mean the entire world.

                  "Trademarks" shall mean (a) the trademarks listed on Exhibit D
hereto, whether or not registered, and any applications or registrations
therefor, and (b) all goodwill associated therewith, in each case which are
exclusively employed in connection with the Products as currently manufactured,
distributed and sold.

                                   ARTICLE 2

                     PURCHASE AND SALE; CLOSING; ALLOCATION

                  Section 2.1 Purchase and Sale. Upon the terms and subject to
the conditions of this Agreement, (a) Seller shall sell, assign, transfer and
deliver to Buyer the Purchased Assets, and (b) Buyer shall purchase and accept
the Purchased Assets from Seller, subject to Buyer's assumption of the Assumed
Liabilities, for an aggregate purchase price consisting of the Fixed Payments
and the Royalty Payments (collectively, the "Purchase Price"). The Purchase
Price shall be payable as provided in Sections 2.6 and 2.7.

                  Section 2.2 Assumption of Liabilities. With respect to the
purchase and sale of the Purchased Assets, in addition to payment of the
Purchase Price and pursuant to assumption agreements to be executed and
delivered in accordance with Section 2.4(e), Buyer shall assume at the Closing
and subsequently, in due course in accordance with any terms applicable thereto,
pay, honor and discharge all of the Assumed Liabilities. Other than as set forth
in the foregoing sentence, Seller shall retain, and Buyer shall not assume, and
nothing contained in this Agreement shall be construed as an assumption by Buyer
of, any liabilities, obligations or undertakings of Seller of any nature
whatsoever, whether accrued, absolute, fixed or contingent, known or unknown,
due or to become due, unliquidated or otherwise. Seller shall be responsible for
all of such liabilities, obligations and undertakings of Seller.

                  Section 2.3 The Closing. Unless this Agreement shall have been
terminated, on the terms and subject to the conditions of this Agreement, the
closing of the sale and purchase of the Purchased Assets and the consummation of
the other transactions contemplated hereby (the "Closing") shall take place at
the offices of Dewey Ballantine LLP, 1301 Avenue of the Americas, New York, NY
10019 on the later of November 15, 2000 or as soon as practicable after the date
on which the last to be fulfilled or waived of the conditions set forth in
Article 7 shall be fulfilled or waived in accordance with this Agreement, or at
such other time, date or place as the parties may mutually agree upon in writing
(the "Closing Date"). At the Closing, the parties to this Agreement will
exchange funds, certificates and other documents as specified in this Agreement.
For purposes of this Agreement the Closing will be treated as if it occurred at
11:59 p.m. on the Closing Date.

                  Section 2.4 Deliveries by Buyer. At the Closing, Buyer shall
deliver, or cause to be delivered, to Seller the following:

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                  (a) the Fixed Payment for Fixed Payment Quarter One payable by
wire transfer in immediately available funds to a U.S. bank account of Seller to
be designated by Seller;

                  (b) the certificate executed by an authorized officer of Buyer
required to be delivered pursuant to Section 7.2(c);

                  (c) a certificate, dated as of the Closing Date, executed by
an authorized officer of Buyer, certifying as to (i) the due organization and
good standing of Buyer, and (ii) the authority and incumbency of officers of
Buyer executing this Agreement and the other agreements, instruments or
certificates delivered at the Closing;

                  (d) a copy of the notice(s) required by 21 CFR 314.72(a)(i)
from Buyer to the FDA relative to the transfer of ownership of the Product;

                  (e) such instruments of assumption and other certificates,
instruments or documents, in form and substance reasonably acceptable to Buyer
and Seller, as may be necessary to effect Buyer's assumption under Applicable
Laws in effect as of the Closing Date of the Purchased Assets and the Assumed
Liabilities; and

                  (f) such other instruments and documents, in form and
substance reasonably acceptable to Buyer and Seller, as may be necessary to
effect the Closing.

                  Section 2.5 Deliveries by Seller. At the Closing, Seller shall
deliver to Buyer the following:

                  (a) the certificate executed by authorized officers of Seller
required to be delivered pursuant to Section 7.3(c);

                  (b) a certificate, dated as of the Closing Date, executed by
an authorized officer of Seller, certifying as to (i) the due organization and
good standing of Seller, and (ii) the authority and incumbency of officers of
Seller executing this Agreement and the other agreements, instruments or
certificates delivered upon the Closing;

                  (c) a copy of the notice(s) required by 21 CFR 314.72(a)(i)
from Seller to the FDA relative to the transfer of ownership of the ownership of
the Product;

                  (d) bills of sale and any other appropriate instruments of
sale and conveyance, in form and substance reasonably acceptable to Buyer and
Seller, transferring under Applicable Laws in effect as of the Closing Date all
Included Intellectual Property included within the Purchased Assets to Buyer or
its Affiliates subject to the Permitted Encumbrances. Buyer, at its own expense,
shall prepare any and all individual assignment documents required and record
them with the U.S. Patent and Trademark Offices and the equivalent agencies in
other jurisdictions within the Territory;

                  (e) copies of the third party consents listed on Exhibit E
hereto;

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                  (f) to the extent the following items have not previously been
provided to Buyer:

                                    (i) a complete and accurate copy of Seller's
                  and its relevant Affiliates' customer lists, including
                  relevant sales data, relating exclusively to the Product;

                                    (ii) a complete and accurate copy of all
                  Regulatory Approvals, regulatory filings, documents and
                  correspondence relating to the Product;

                  (g) such other instruments and documents, in form and
substance reasonably acceptable to Buyer and Seller, as may be necessary to
effect the Closing.

                  Section 2.6 Fixed Payments. Buyer shall pay to Seller the
Fixed Payment for Fixed Payment Quarter One in accordance with Section 2.4(a)
and shall pay to Seller, all other Fixed Payments within thirty (30) days after
the commencement of the corresponding Fixed Payment Quarter, as set forth in
Exhibit A, by wire transfer in immediately available funds to a U.S. bank
account of Seller to be designated by Seller.

                  Section 2.7 Royalty Payments.

                  (a) Buyer shall (i) within forty-five (45) days after the
expiration of each quarter of each Contract Year, pay to Seller the Royalty
Payment for such quarterly period, as set forth in Exhibit A, by wire transfer
in immediately available funds to a U.S. bank account of Seller to be designated
by Seller and (ii) no later than sixty (60) days after the expiration of each
Contract Year, deliver to Seller a statement setting forth Buyer's determination
of the Net Sales for the corresponding Contract Year and Buyer's determination
of the Royalty Payments payable or paid to Seller corresponding to such Contract
Year, accompanied by a certificate executed on behalf of Buyer by the chief
financial officer of Buyer, to the effect that, to the best of such officer's
knowledge after due inquiry, said determinations were made in accordance with
the applicable provisions of this Agreement.

                  (b) During the two (2) year period commencing upon Seller's
receipt of the statement delivered to Seller pursuant to Section 2.7(a) of this
Agreement, Seller may deliver to Buyer a written notice requesting that
independent certified public accountants selected by Seller and reasonably
acceptable to Buyer review Buyer's determinations of Net Sales and the amount of
the corresponding Royalties Payment, as set forth in such statement; provided
that such certified public accountants shall be subject to a customary
non-disclosure agreement with Buyer. If Seller delivers such a written notice to
Buyer during such two (2) year period, then, without limiting the generality of
Section 2.7(d) of this Agreement, Buyer shall allow, and cooperate with, such
auditors to prepare, within sixty (60) days after the delivery of such written
notice to Buyer, during normal business hours and not more than two (2) times
per Contract Year, a report of the audit of Buyer's certificate and statements
to the effect that, subject to any adjustments expressly set forth in such
report, said determinations were made in accordance with the applicable
provisions of this Agreement. In the event that the audit reveals that any
Royalty Payment hereunder was less than the amount actually due, Buyer shall
deliver to Seller the entire shortfall amount within ten (10) days after the
completion of the audit; provided, further that in the event such that any
Royalty Payment hereunder was less than the amount actually due and

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payable by five percent (5%) or more, then all costs of the audit shall be borne
by Buyer. Otherwise Seller shall bear the cost of the audit, without limitation
to Buyer's obligation to pay any shortfall. In the event that the audit reveals
that any Royalty Payments hereunder exceeded the amount actually due, Seller
shall reimburse the Buyer for the entire overpayment within ten (10) days after
completion of the audit.

                  (c) Buyer shall keep, and shall cause each Person which shall
use or have access to the Purchased Assets, including any applicable licensees,
sublicensees and Affiliates thereof, to keep full and accurate books of account
containing all particulars that may be necessary for the purpose of calculating
the Royalty Payments. Such books of account, with all necessary supporting data,
shall be kept at their respective principal places of business and shall
continue to be kept for the respective two (2) year period set forth in Section
2.7(c).

                  Section 2.8 Withholding. Buyer shall pay all Fixed Payments
and Royalty Payments in U.S. dollars in the full amount owed, without any
reduction, withholding or set-off for Taxes imposed with respect to such
payments. Should any Taxes be required by Applicable Law to be withheld, Buyer
shall indemnify and hold harmless Seller, on a net after-Tax basis, from such
Taxes by (a) making all such Tax payments as required and (b) making such
additional payments to Seller as may be required so that, net of Taxes payable
in respect of the amounts withheld and such additional payments, Seller shall
receive the amount it would have received had no such withholdings been
required. In addition, Buyer shall indemnify and hold harmless Seller, on a net
after-Tax basis, from any Taxes imposed directly on the Seller with respect to
all Fixed Payments and Royalty Payments, other than Taxes imposed on Seller by a
jurisdiction in which Seller is treated as resident for reasons other than
receipt of these payments (or in which Seller is treated as engaged in business
for reasons other than receipt of these payments, to the extent that the Fixed
Payments and/or Royalty Payments are treated by that jurisdiction as connected
with such business). If, by reason of a Tax payment made by Buyer on behalf of
or for the account of Seller, Seller receives a Tax refund of, or credit
against, income taxes otherwise owed by Seller, Seller shall pay promptly to
Buyer the lesser of (i) such Tax refund or credit or (ii) such Tax payment made
by Buyer.

                  Section 2.9 Interest. If Buyer fails to make any payment
required to be made under this Agreement, including any Fixed Payment or Royalty
Payment or any shortfall amount under Section 2.7(b), then Buyer shall be
required to pay Seller interest on the overdue amount, over the period
commencing on the date when such payment was due and ending when such amount is
paid or when the obligation to pay such amount is otherwise satisfied, at a
floating rate equal to the lesser of (a) the rate five hundred (500) basis
points above the Prime Rate; or (b) the highest rate permitted under applicable
law.

                  Section 2.10 Allocation.

                  (a) Prior to Closing, Buyer and Seller shall agree upon a
statement (the "Allocation Statement") setting forth the respective values of
the Purchased Assets, and the allocation of the consideration among the
Purchased Assets, as determined under Section 1060 of the Code.

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                  (b) Unless otherwise required by law, Seller and Buyer agree
to act in accordance with such Allocation Statement for all Tax purposes
including filing all tax returns (including without limitation filing Form 8594
with its federal income tax return for the taxable year that includes the date
of the Closing) and conducting of any tax audit, tax review or tax litigation
relating thereto in a manner consistent with the Allocation Statement.

                  (c) Seller and Buyer agree to adjust the Allocation Statement
as necessary, consistent with Section 1060 of the Code, based on Royalty
Payments actually made pursuant to Section 2.7.

                  Section 2.11 Returns. As of the Closing Date and thereafter,
Buyer shall be responsible for all returns of Product sold in the Territory;
provided, however, that, for a period of three (3) months from the Closing Date,
if such returns exceed the historical and normal rate of return during the
twelve (12) month period prior to the Closing Date and Buyer has not taken any
actions in connection with the Product which is inconsistent with Seller's past
business practices, including without limitation a reduction or announced
reduction in price, Seller shall reimburse Buyer for the costs of returns in
excess of such rate.

                  Section 2.12 Exchange Rate. Monetary conversions from the
currency of a foreign country in which Net Sales are generated shall be made at
the rate of exchange at which U.S. dollars are legally obtainable at the Chase
Manhattan Bank in New York City (or its successor) on the last business day of
the quarterly period for which said amounts are being paid.

                  Section 2.13 Transfer Taxes. Buyer shall be liable for and
shall pay all transfer, sales, use, withholding, stamp duty, value added and
similar taxes payable in connection with the conveyance and transfer of the
Purchased Assets by Seller to Buyer. Buyer shall file all required tax returns
and other documentation with respect to such taxes, subject to review by Seller,
and, if required by Applicable Law, Seller will join in the execution of any
such tax returns and other documentation.

                                   ARTICLE 3

                    REPRESENTATIONS AND WARRANTIES OF SELLER

                  Seller hereby represents and warrants to Buyer as follows:

                  Section 3.1 Organization, Good Standing, Power, Etc. Seller is
a corporation duly organized, validly existing and in good standing under the
laws of the state of Delaware. Seller has the requisite corporate power and
authority to execute and deliver this Agreement and the other agreements
contemplated hereby and to consummate the transactions contemplated hereby and
thereby. The execution and delivery of this Agreement by Seller, the execution
and delivery by Seller of the other agreements contemplated hereby, and the
consummation by Seller of the transactions contemplated hereby and thereby have
been duly authorized by all necessary corporate action on the part of Seller and
no other or further corporate proceedings will be necessary for the execution
and delivery of such agreements by Seller, the performance by Seller of its
obligations hereunder and thereunder and the consummation by Seller of the
transactions contemplated hereby or thereby. This Agreement has been duly
executed and delivered by Seller

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and constitutes a legal, valid and binding obligation of Seller enforceable
against such Seller in accordance with its terms, except as the same may be
limited by bankruptcy, insolvency, moratorium, reorganization or other laws of
general applicability relating to or affecting the enforcement of creditors'
rights and general principles of equity.

                  Section 3.2 Governmental Authorization; Required Consents.

                  (a) The execution, delivery and performance by Seller of this
Agreement and the other agreements contemplated hereby and the consummation by
Seller of the transactions contemplated hereby or thereby will not require any
notice to, filing with, or the consent, approval or authorization of, any Person
or Governmental Authority, except as contemplated in Sections 6.2 and 6.3 hereof
or as set forth in Schedule 3.2, other than where the failure to obtain such
consent, approval or authorization, or to give or make any such notice or
filing, would not be reasonably expected to have a Material Adverse Effect.

                  (b) The execution, delivery and performance of this Agreement
by Seller and the consummation of the transactions contemplated hereby do not
conflict with or result in any breach of any of the provisions of, or constitute
a default under, result in a violation of, result in the creation of a right of
termination or acceleration or any lien, security interest, charge or
authorization, consent, approval, exemption or other action by or notice to any
court or other governmental body, under the provisions of the Certificate of
Incorporation or Bylaws of Seller or any indenture, mortgage, lease, loan
agreement or other agreement or instrument by which Seller or the Purchased
Assets are bound or affected (except as contemplated in Sections 6.2 and 6.3
hereof or as set forth in Schedule 3.2), or any law, statute, rule or regulation
or order, judgment or decree to which Seller or the Purchased Assets are
subject.

                  Section 3.3 Properties.

                  (a) Except as set forth on Schedule 3.3 Seller has good and
marketable title to all Purchased Assets.

                  (b) No Purchased Asset is subject to any Encumbrance, except
(i) liens for Taxes, assessments and other governmental charges not yet due and
payable or delinquent or being contested in good faith; (ii) immaterial
mechanics', workmen's, repairmen's, warehousemen's, carriers' or other like
liens arising or incurred in the ordinary course of business; and (iii) any
Encumbrances which do not materially detract from the value of such Purchased
Asset as now used, or materially interfere with any present or intended use of
such Purchased Assets (all items included in items (i) through (iii) are
referred to collectively herein as the "Permitted Encumbrances").

                  (c) Upon consummation of the transactions contemplated hereby,
Buyer will have acquired good and marketable title in and to each of the
Purchased Assets, free and clear of all Encumbrances, other than the Permitted
Encumbrances.

                  Section 3.4 Inventory and Returns. To Seller's knowledge, the
Inventory consists of items of a quality and quantity usable in the ordinary
course of business, and having expiration dates listed on Exhibit C hereof. To
Seller's knowledge, none of the Inventory is obsolete or damaged, and the
Inventory is merchantable and fit for its particular use.

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                  Section 3.5 Litigation. Except as set forth in Schedule 3.5,
there is no civil, criminal or administrative action, suit, hearing, proceeding
or investigation pending or, to the knowledge of Seller, threatened against the
Seller relating directly to the Purchased Assets or the transactions
contemplated hereby, other than those that individually or in the aggregate
would not be reasonably expected to have a Material Adverse Effect.

                  Section 3.6 Intellectual Property Rights.

                  (a) Exhibit B and Exhibit D, as applicable, set forth a
listing of (i) all Trademarks and registered copyrights and applications for
copyright registration included in the Included Intellectual Property that are
owned by Seller and included in the Purchased Assets, (ii) all contracts under
which Seller is licensed or otherwise uses or is permitted to use any Included
Intellectual Property in connection with the Purchased Assets, (iii) all
contracts under which Seller has obtained (by assignment, license or otherwise)
any right to, or licenses or otherwise permits any Person to use, the Included
Intellectual Property.

                  (b) To the knowledge of Seller (i) except as set forth in
Schedule 3.6(b)(i), no Person has claimed that the Purchased Assets infringe on
or otherwise violate the intellectual property rights of any other Person and
(ii) except as set forth on Schedule 3.6(b)(ii), no Person is challenging or
infringing or otherwise violating the Included Intellectual Property. Seller has
not received any notice of any infringement, misappropriation or violation by
Seller of any intellectual property rights of any third parties with respect to
the Purchased Assets or Product.

                  (c) Except as disclosed on Schedule 3.6(c), Seller either (i)
owns the entire right, title and interest in and to the Included Intellectual
Property free and clear of any Encumbrances, or (ii) has the valid and
royalty-free right to use the same.

                  Section 3.7 Assumed Agreements. Exhibit B lists all of the
Assumed Agreements. Such list includes the agreements required in order for
Buyer to manufacture, sell or distribute the Product in substantially the same
manner as Seller immediately prior to the date of this Agreement and there are
no other agreements under which Seller receives any right to sell, manufacture
or distribute the Product or under which Seller sells, manufacturers or
distributes the Product. None of the Assumed Agreements has been modified by
written or oral agreement, except as disclosed on such Exhibit B. Seller has
provided to Buyer true, correct and complete copies of each Assumed Agreement.
To the knowledge of Seller, there is no breach, invalidity, nor grounds for
termination, rescission, avoidance or repudiation of any Assumed Agreement nor,
to Seller's knowledge, is there any allegation of such a thing. Except as set
forth on Schedule 3.7, Seller has not received notice of termination or
non-renewal of any Assumed Agreement, Seller has not received notice that any
Assumed Agreement may not be renewed on equivalent terms and there is no dispute
between Seller and the other party to any Assumed Agreement in respect of such
Assumed Agreement.

                  Section 3.8 Compliance with Law. Except as set forth in
Schedule 3.5 or Schedule 3.8 the Purchased Assets have been utilized in
compliance with all Applicable Laws in effect prior to the Closing Date, except
where the failure so to comply would not be reasonably expected to have a
Material Adverse Effect.

                                       11
<PAGE>

                  Section 3.9 Regulatory Matters. Except as set forth on
Schedule 3.9(a), none of the Product is being manufactured (other than
manufacture in connection with research and development) or sold by Seller which
at the date hereof would require any approval of the FDA or any other
Governmental Authority for the purpose for which they are being manufactured,
assembled or sold by Seller for which such approval has not been obtained. There
is no action or proceeding by the FDA or any other Governmental Authority,
including, but not limited to, recall procedures, pending or, to the knowledge
of Seller, threatened against Seller relating to safety or efficacy of any of
the Purchased Assets. Schedule 3.9(b) sets forth a true and complete list of all
Regulatory Approvals for the Product in the Territory.

                  Section 3.10 Broker's Fees. Seller has not employed any
broker, finder or investment banker or incurred any liability for any brokerage,
finder's or other fee or commission in connection with the transactions
contemplated by this Agreement.

                  Section 3.11 No Other Representations of Warranties. EXCEPT
FOR THE REPRESENTATIONS AND WARRANTIES OF SELLER EXPRESSLY SET FORTH IN THIS
AGREEMENT, NEITHER SELLER NOR ANY OTHER PERSON MAKES ANY OTHER EXPRESS OR
IMPLIED REPRESENTATION OR WARRANTY ON BEHALF OF SELLER.

                                   ARTICLE 4

                     REPRESENTATIONS AND WARRANTIES OF BUYER

                  Buyer hereby represents and warrants to Seller that:

                  Section 4.1 Corporate Organization, Good Standing, Power.
Buyer is a corporation duly organized, validly existing and in good standing
under the laws of the state of Minnesota. Buyer has the requisite corporate
power and authority to execute and deliver this Agreement and the other
agreements contemplated hereby and to consummate the transactions contemplated
hereby and thereby. The execution and delivery of this Agreement by Buyer, the
execution and delivery by Buyer of the other agreements contemplated hereby, and
the consummation by Buyer of the transactions contemplated hereby and thereby
have been duly authorized by all necessary corporate action on the part of Buyer
and no other or further corporate proceedings will be necessary for the
execution and delivery of such agreements by Buyer, the performance by Buyer of
its obligations hereunder and thereunder and the consummation by Buyer of the
transactions contemplated hereby or thereby. This Agreement has been duly
executed and delivered by Buyer and constitutes a legal, valid and binding
obligation of Buyer enforceable against such Buyer in accordance with its terms,
except as the same may be limited by bankruptcy, insolvency, moratorium,
reorganization or other laws of general applicability relating to or affecting
the enforcement of creditors' rights and general principles of equity.

                  Section 4.2 Governmental Authorization; Required Consents.

                  (a) The execution, delivery and performance by Buyer of this
Agreement and the other agreements contemplated hereby and the consummation by
Buyer of the transactions

                                       12
<PAGE>

contemplated hereby or thereby will not require any notice to, filing with, or
the consent, approval or authorization of, any Person or Governmental Authority,
except as contemplated in Sections 6.2 and 6.3 hereof, other than where the
failure to obtain such consent, approval or authorization, or to give or make
any such notice or filing, would not be reasonably expected to have a Material
Adverse Effect.

                  (b) The execution, delivery and performance of this Agreement
by Buyer and the consummation of the transactions contemplated hereby do not
conflict with or result in any breach of any of the provisions of, or constitute
a default under, result in a violation of, result in the creation of a right of
termination or acceleration or any lien, security interest, charge or
authorization, consent, approval, exemption or other action by or notice to any
court or other governmental body, under the provisions of the Articles of
Incorporation or Bylaws of Buyer or any indenture, mortgage, lease, loan
agreement or other agreement or instrument by which Buyer is bound or affected,
or any law, statute, rule or regulation or order, judgment or decree to which
Buyer is subject.

                  Section 4.3 Broker's Fees. None of Buyer or any of its
Affiliates has employed any broker, finder or investment banker or incurred any
liability for any brokerage, finder's or other fee or commission in connection
with the transactions contemplated by this Agreement.

                  Section 4.4 Financial Capability. Buyer has sufficient funds
available or loan commitments to purchase the Purchased Assets on the terms and
subject to the conditions of this Agreement, including with respect to payment
of the Purchase Price and the marketing and promotion efforts set forth in
Section 6.9 of this Agreement.

                  Section 4.5 Due Diligence. In connection with the transactions
contemplated herein and in the other agreements contemplated hereby, Buyer has
performed a comprehensive due diligence investigation of the Product and the
Purchased Assets.

                  Section 4.6 No Other Representations or Warranties. EXCEPT FOR
THE REPRESENTATIONS AND WARRANTIES OF BUYER EXPRESSLY SET FORTH IN THIS
AGREEMENT, NEITHER BUYER NOR ANY OTHER PERSON MAKES ANY OTHER EXPRESS OR IMPLIED
REPRESENTATION OR WARRANTY ON BEHALF OF BUYER.

                                   ARTICLE 5

                     CONDUCT OF BUSINESS PENDING THE CLOSING

                  Seller agrees that:

                  Section 5.1 Conduct of the Business. From the date hereof
until the Closing Date, Seller shall utilize the Purchased Assets in the
ordinary course of business consistent with past practice, and without limiting
the foregoing, shall sell the Product to its distributors only in amounts
consistent with such distributors' average daily orders for the Product during
the sixty (60) day period preceding the date of this Agreement.

                                       13
<PAGE>

                  Section 5.2 Certain Actions. Seller shall not waive, release,
grant or transfer any material Included Intellectual Property or modify or
change in any respect any of the Assumed Agreements or any existing material
license, distribution agreement or other document.

                                   ARTICLE 6

                               OTHER STIPULATIONS

                  The parties hereto agree that:

                  Section 6.1 Expenses. All expenses, including the fees of any
attorneys, accountants, investment bankers or others engaged by a Party,
incurred in connection with this Agreement and the transactions contemplated
hereby, shall be paid by the Party incurring such expenses whether or not the
transactions contemplated by this Agreement are consummated.

                  Section 6.2 Further Assurances. Subject to the terms and
conditions herein provided, each of the Parties hereto agrees (a) to use
reasonable efforts to do, or cause to be done, all things necessary, proper or
advisable to consummate the transactions contemplated by this Agreement and to
cooperate with each other in connection with the foregoing, (b) to use
reasonable efforts to obtain all necessary consents and approvals (or effective
waiver thereof) from other parties to material agreements, contracts,
instruments and other contracts, (c) to defend all lawsuits or other legal
proceedings challenging this Agreement or the consummation of the transactions
contemplated hereby, (d) to use reasonable efforts before and after the Closing
to effect the registrations and filings and submissions of information required
or requested by Governmental Authorities set forth on Schedule 6.2, including
the FDA and comparable agencies in the Territory, with respect to the
transactions contemplated hereby, including without limitation the execution by
Seller of transfer documents prepared by Buyer, and (e) to assign or reassign,
or grant rights, in relation to assets contemplated by this Agreement to be
retained by Seller or transferred to Buyer and inadvertently transferred to
Buyer or retained by Seller, as the case may be.

                  Section 6.3 Filings and Authorizations. Prior to and after the
Closing Date, Seller and Buyer, as promptly as practicable, will make, or cause
to be made, all such other filings and submissions under Applicable Laws in
addition to those referenced in Section 6.2, as may be required for them to
consummate the transactions contemplated hereby in accordance with the terms of
this Agreement, and Buyer will obtain, or cause to be obtained, all
authorizations, approvals, consents and waivers from all Governmental
Authorities necessary to be obtained by them, or their Affiliates, in order for
them so to consummate such transactions; provided, however, that Seller shall
not be required to provide assistance for any filings or submissions related to
the qualification and licensing of any new manufacturing facility for Buyer.

                  Section 6.4 Use of Certain Names. After the Closing Date,
Buyer shall be entitled to sell the Inventory with its current product
literature, labeling and packaging. Until the Inventory is exhausted, Buyer's
use of such product literature, labeling and packaging and any other Indicia (as
hereinafter defined) currently used in connection with the Product shall be in
compliance with all Applicable Laws and conform to standards of quality at least
equal to those

                                       14
<PAGE>

used in connection with the Product prior to the Closing Date. Thereafter, upon
exhaustion of such Inventory, Buyer shall be permitted to continue using the
product labeling, packaging and shape currently used by Seller relating to the
Product; provided, that, notwithstanding the foregoing, Buyer shall have no
right whatsoever to use, and shall refrain from and discontinue using, any other
Indicia, including, without limitation, the names "MedImmune", "U.S. Bioscience"
and "USB" and all related logos, and any and all derivatives and variations
thereof.

                  Section 6.5 Use of Certain Assets. The parties agree that
Seller, and/or its Affiliates, own trademarks and designs other than those
exclusively relating to the Product, including, without limitation, the names
"MedImmune", "U.S. Bioscience" and "USB" and all related logos (hereinafter
collectively, "Indicia"), as well as various registrations thereof. Buyer hereby
acknowledges the validity and ownership by Seller of any and all such Indicia
and any and all registrations thereof and hereby agrees and acknowledges that
nothing in this Agreement shall be construed to grant Buyer any right in or to
such Indicia, other than as set forth in Section 6.4 above. Buyer hereby agrees
that it shall not directly or indirectly associate, register, use, or apply or
permit the association, registration, use or application of any of such Indicia
or registrations or anything imitative of or which resembles or is confusingly
similar to or with any of such Indicia or registrations in connection with any
business of or associated with Buyer or its Affiliates or to or with any
products manufactured, permitted, or distributed by or for Buyer or its
Affiliates. In addition, from and after the Closing Date, Seller hereby agrees
that it shall not directly or indirectly associate, register, use or apply or
permit the association, registration, use or application of any trademark,
design or logo which is imitative of or which resembles or is confusingly
similar to or with the trademark "Hexalen" in connection with any business of or
associated with Seller or its Affiliates or to or with any products,
manufactured, permitted or distributed by or for Seller or its Affiliates. The
provisions of this Section 6.5 shall survive the Closing Date indefinitely.

                  Section 6.6 Regulatory Matters.

                  (a) Within sixty (60) days after the Closing Date, Seller
shall provide Buyer with a copy of all correspondence or other documents
reasonably related to the Regulatory Approvals.

                  (b) After the Closing, Buyer shall be solely responsible and
bear all costs for conducting all activities in connection with the Regulatory
Approvals, including, without limitation, communicating and preparing and filing
all reports (including, without limitation, adverse drug experience reports and
filings and submissions relating to the transfer of the Regulatory Approvals
hereunder) with the appropriate Governmental Authorities in the Territory and
interacting with any third parties with respect to Product sold or distributed
in the Territory; provided, however, that for up to ninety (90) days after the
Closing Date, Seller, shall reasonably assist and cooperate in the transition of
such activities to Buyer. In addition, thereafter, if Buyer shall request the
assistance of Seller's employees, then Buyer shall pay to Seller a fee for such
excess services as Seller may provide based on a rate of $150.00 per hour for
each employee so utilized.

                  Section 6.7 Technology Transfer. Within thirty (30) days after
the Closing Date, to the extent not already delivered pursuant to Section 2.5
hereof, Seller shall furnish

                                       15
<PAGE>

Buyer with one (1) copy of the Included Know-How in Seller's possession or under
Seller's control, including all technical, manufacturing and Seller's other
written information, including but not limited to process sheets, raw material
and process specifications, manuals and vendors lists, which are currently used
by Seller, its Affiliates or sub-contractors to manufacture or have manufactured
Product according to the methods used by Seller or its Affiliates or
sub-contractors.

                  Section 6.8 Marketing and Promotion Efforts. Buyer shall use
its Commercially Reasonable Efforts to promote, market and sell the Product in
the Territory.

                  Section 6.9 Insurance. At all times from the Closing Date for
a period of 10 years, Buyer shall maintain product liability insurance written
on an occurrence form in an amount of not less than $15,000,000 per occurrence,
and $15,000,000 annual aggregate. At the Closing, Buyer shall provide Seller
with a certificate of insurance as evidence of such insurance and annually
thereafter evidencing the renewal of such insurance. In the event that any such
insurance shall be significantly reduced or restricted, terminated or shall
otherwise not be renewed, Buyer shall immediately notify Seller, provided that
Buyer shall use its best efforts to avoid any such reduction or restriction of
terms or non-renewal or termination.

                  Section 6.10 Consents and Subcontracted Work. Buyer and Seller
shall use commercially reasonable efforts to obtain, between the date of this
Agreement and the Closing Date, all requisite consents to the assignment of all
of the Purchased Assets and the Assumed Liabilities, including without
limitation the Assumed Agreements. To the extent that Seller is unable to obtain
any of such consents (without the incurring of any significant additional
costs), then the Parties hereby agree to proceed with respect to the underlying
rights and obligations of such contracts for which consent has not been obtained
as shall permit Buyer to perform the obligations of Seller thereunder, as a
subcontractor or otherwise, and Buyer to obtain the benefit thereof (the
"Subcontracted Work"); and until the requisite consents are obtained, such
obligations will not be deemed to be included in the Assumed Liabilities and
nothing contained herein will be deemed to constitute a breach of the contract
underlying such rights and obligations. Buyer agrees to diligently perform and
discharge the obligations of Seller in connection with the Subcontracted Work;
and to the extent that consents to assignment are obtained after the Closing,
Buyer agrees that such obligations will no longer be considered to be
Subcontracted Work at such time, but will instead be deemed to be Assumed
Liabilities for all purposes of this Agreement.

                  Section 6.11 Retention of Records. Buyer shall preserve all
records and documents included within the Purchase Assets for a period of at
least three (3) years from the Closing Date, and thereafter, Buyer will not
dispose of or destroy any of such records and documents without giving thirty
(30) days prior written notice to Seller to permit Seller, at its expense, to
duplicate or take possession of any such records and documents.

                                       16
<PAGE>

                                   ARTICLE 7

                                   CONDITIONS

                  Section 7.1 Conditions to Obligation of each Party to Effect
the Transactions Contemplated by this Agreement. The obligation of each Party to
effect the transactions contemplated by this Agreement shall be subject to the
fulfillment at or prior to the Closing Date of the following conditions:

                  (a) the consents and approvals of Governmental Authorities set
forth on Schedule 7.1(a), which shall not include any consents or approvals
relating to Regulatory Approvals necessary to permit the consummation of the
transactions contemplated by this Agreement shall have been obtained; and

                  (b) no preliminary or permanent injunction or other order,
decree or ruling issued by a court of competent jurisdiction or by a
Governmental Authority or executive order promulgated or enacted by any
Governmental Authority shall be in effect that would restrain or otherwise
prevent the consummation of the transactions contemplated by the Agreement.

                  Section 7.2 Conditions to the Obligation of Seller. The
obligation of Seller to effect the transactions contemplated by this Agreement
is subject to the fulfillment at or prior to the Closing Date of the following
conditions:

                  (a) Buyer shall have performed in all material respects each
obligation and agreement and complied in all material respects with each
covenant to be performed and complied with by it hereunder at or prior to the
Closing Date, including, without limitation, compliance with the provisions of
Section 2.4;

                  (b) the representations and warranties of Buyer in this
Agreement shall be true and correct in all material respects, as of the Closing
Date with the same force and effect as though made at such time, except for
changes contemplated by this Agreement; and

                  (c) Buyer shall have furnished to Seller a certificate, dated
as of the Closing Date, signed by a duly authorized officer of Buyer to the
effect that all conditions set forth in Sections 7.2(a) and (b) have been
satisfied.

                  Section 7.3 Conditions to the Obligation of Buyer. The
obligation of Buyer to effect the transactions contemplated by this Agreement is
subject to the fulfillment at or prior to the Closing Date of the following
conditions:

                  (a) Seller shall have performed in all material respects each
obligation and agreement and complied in all material respects with each
covenant to be performed and complied with by them hereunder at or prior to the
Closing, including, without limitation, compliance with the provisions of
Section 2.5;

                  (b) the representations and warranties of Seller in this
Agreement shall be true and correct in all material respects, as of the Closing
Date with the same force and effect as though made at such time, except for
changes contemplated by this Agreement;

                                       17
<PAGE>

                  (c) Seller shall have furnished to Buyer a certificate, dated
as of the Closing Date, signed by a duly authorized officer of Seller to the
effect that all conditions set forth in Sections 7.3(a) and (b) have been
satisfied; and

                  (d) Seller shall have obtained the consents listed on Exhibit
E hereto.

                  (e) Seller shall have executed a trademark assignment in the
form of Exhibit F hereto.

                                   ARTICLE 8

                                 INDEMNIFICATION

                  Section 8.1 Indemnification.

                  (a) Subject to Section 8.3, Seller shall indemnify, defend and
hold harmless Buyer and its Affiliates, and their respective officers,
directors, employees, agents and controlling Persons from any liability, damage,
deficiency, loss, judgments, assessments, cost or expense, including reasonable
attorneys' fees and costs of investigating and defending against lawsuits,
complaints, actions or other pending or threatened litigation (being hereafter
referred to in this Article 8 as "Costs"), arising from or attributable to:

                                    (i) The breach of any representation or
                  warranty made by Seller in this Agreement; and

                                    (ii) Any failure of Seller duly to perform
                  or observe any covenant or agreement to be performed or
                  observed by Seller pursuant to this Agreement.

                  (b) Subject to Section 8.3, Buyer shall indemnify and hold
harmless Seller and its Affiliates, and their respective officers, directors,
employees, agents and controlling Persons from Costs arising from or
attributable to:

                                    (i) The breach in any representation or
                  warranty made by Buyer in this Agreement;

                                    (ii) Any failure of Buyer duly to perform or
                  observe any covenant or agreement to be performed or observed
                  by Buyer pursuant to this Agreement; and

                                    (iii) The Assumed Liabilities.

                  (c) Nothing in Article 8 shall limit or otherwise affect
indemnification provided by Buyer in Section 2.8.

                  Section 8.2 Procedures.

                  (a) Promptly after the receipt by any Person entitled to
indemnity hereunder of notice of (i) any claim or (ii) the commencement of any
action or proceeding, such Person (the "Aggrieved Party") will, if a claim with
respect thereto is to be made against any Party obligated

                                       18
<PAGE>

to provide indemnification pursuant to this Article 8 (the "Indemnifying
Party"), give such Indemnifying Party written notice of such claim or the
commencement of such action or proceeding and shall permit the Indemnifying
Party to assume the defense of any such claim or any litigation resulting from
such claim, and, upon such assumption, shall cooperate fully with the
Indemnifying Party in the conduct of such defense. Failure by the Indemnifying
Party to notify the Aggrieved Party of its election to defend any such action
within a reasonable time, but in no event more than thirty (30) days after
notice thereof shall have been given to the Indemnifying Party, shall be deemed
a waiver by the Indemnifying Party of its right to defend such action. If the
Indemnifying Party assumes the defense of any such claim or litigation resulting
therefrom, the Indemnifying Party shall be obligated to take all steps necessary
in the defense or settlement of such claim or litigation resulting therefrom.
The Aggrieved Party may participate, at its expense, in the defense of such
claim or litigation provided that the Indemnifying Party shall direct and
control the defense of such claim or litigation; provided, however, that the
Aggrieved Party shall be entitled to retain its own counsel at the Indemnifying
Party's expense at the request of the Indemnifying Party or if the named parties
to any such proceeding include both the Aggrieved Party and the Indemnifying
Party and representation of both parties by the same counsel would be
inappropriate due to actual or potential differing interests between them. The
Indemnifying Party shall not, in the defense of such claim or any litigation
resulting therefrom, consent to entry of any judgment, except with the written
consent of the Aggrieved Party, or enter into any settlement, except with the
written consent of the Aggrieved Party, which does not include as an
unconditional term thereof the giving by the claimant or the plaintiff to the
Aggrieved Party of a release from all liability in respect of such claim or
litigation. In addition, all awards and costs payable by a third party to the
Aggrieved Party or the Indemnifying Party shall belong to the Indemnifying
Party.

                  (b) If the Indemnifying Party shall not assume the defense of
any such claim or litigation resulting therefrom, the Aggrieved Party may defend
against such claim or litigation in such manner as it may deem appropriate and,
unless the Indemnifying Party shall deposit with the Aggrieved Party a sum
equivalent to the total amount demanded (subject to the limitation set forth in
the last sentence of Section 8.3) in such claim or litigation less the Minimum
Loss, or shall deliver to the Aggrieved Party a surety bond in form and
substance reasonably satisfactory to the Aggrieved Party in such amount, the
Aggrieved Party may settle such claim or litigation on such terms as it may deem
appropriate, and the Indemnifying Party shall promptly reimburse the Aggrieved
Party for the amount of all expenses, legal or otherwise, incurred by the
Aggrieved Party in connection with the defense against or settlement of such
claim or litigation. If no settlement of such claim or litigation is made, the
Indemnifying Party shall promptly reimburse the Aggrieved Party for the amount
of any judgment rendered with respect to such claim or in such litigation and of
all expenses, legal or otherwise, incurred by the Aggrieved Party in the defense
against such claim or litigation.

                  Section 8.3 Limitations. An Aggrieved Party shall not be
entitled to recover any Costs under Section 8.1(a) or Section 8.1(b) until the
aggregate amount of the Costs suffered by the Aggrieved Party thereunder shall
equal or exceed one hundred thousand dollars ($100,000) (the "Minimum Loss"), at
which time the indemnification provided under Section 8.1(a) or Section 8.1(b)
shall apply to all Costs in excess of the Minimum Loss. Notwithstanding anything
herein to the contrary, the indemnification provisions set forth in Section 8.1
shall survive until the expiration of the relevant statues of limitation except
that indemnification for

                                       19
<PAGE>

breaches of representations and warranties provided in Sections 8.1(a)(i) and
8.1(b)(i) which shall survive until expiration of the survival period set forth
in Section 10.3 below. Buyer shall be entitled to (but shall not be required to)
set-off any amounts due or payable by Buyer or any of its Affiliates to Seller.
In addition, neither Seller nor Buyer shall be responsible for any Aggrieved
Party's own indirect, incidental, special or consequential damages whatsoever,
including loss of profits or goodwill.

                  Section 8.4 Indemnification as Sole Remedy. The
indemnification provided in this Article 8, subject to the limitations set forth
herein, shall be the exclusive post-Closing remedy for damages available to any
Aggrieved Party; provided, however, that such limitations shall not apply in the
event that, and only after, an Aggrieved Party obtains a final judgment (after
the exhaustion of all appellate remedies) in a court of competent jurisdiction
that the Indemnifying Party committed fraud.

                                   ARTICLE 9

                                   TERMINATION

                  Section 9.1 Termination. This Agreement may be terminated at
any time prior to the Closing Date:

                  (a) by mutual written consent of Buyer and Seller;

                  (b) by either Party if the Closing shall not have occurred on
or prior to December 29, 2000; provided, however, that a Party shall not have
the right to terminate under this Section 9.1(b) if such Party's (or such
Party's Affiliates) failure to fulfill any obligation under this Agreement has
been the cause of, or resulted in, the failure of the Closing to occur on or
before such date of any liability of such Party to the other Party hereunder for
such failure; or

                  (c) subject to Section 6.3, by Buyer or Seller if a court of
competent jurisdiction or Governmental Authority shall have issued an order,
decree or ruling or taken any other action, in each case permanently
restraining, enjoining or otherwise prohibiting the transactions contemplated by
this Agreement, and such order, decree, ruling or other action shall have become
final and nonappealable.

                  The date on which this Agreement is terminated pursuant to any
of the foregoing subsections of this Section 9.1 is herein referred to as the
"Termination Date."

                  Section 9.2 Effect of Termination. Upon the termination of
this Agreement pursuant to Section 9.1, this Agreement shall forthwith become
null and void, except that nothing herein shall relieve any Party from liability
for breach of this Agreement prior to such termination.

                                       20
<PAGE>

                                   ARTICLE 10

                               GENERAL PROVISIONS

                  Section 10.1 Public Statements. So long as this Agreement is
in effect, none of the Parties hereto shall issue or cause the dissemination of
any press release or other announcement with respect to this Agreement or the
transactions contemplated hereby without consulting with and obtaining the
consent of the other Party which shall not be unreasonably withheld; provided,
however, that such consent shall not be required where such release or
announcement is required by applicable law, including requirements for voluntary
filings under the securities laws, or legal process.

                  Section 10.2 Notices. All notices and other communications
hereunder shall be in writing and shall be deemed to have been duly given if
delivered personally, mailed by reputable overnight courier or certified mail
(return receipt requested) or sent by telecopier (confirmed thereafter in
writing) to the parties at the following addresses or at such other addresses as
shall be specified by the Parties by like notice:

                  (a)      if to Seller:

                           MedImmune Oncology, Inc.
                           One Tower Bridge
                           100 Front Street, Suite 400
                           West Conshohocken, PA 19428
                           Attention:    Wendy Nagy, Esq.
                           Telecopier Number:  (610) 832-4595

                           with a copy to:

                           Dewey Ballantine LLP
                           1301 Avenue of the Americas
                           New York, NY 10019
                           Attention:    Frederick W. Kanner, Esq.
                           Telecopier Number:  (212) 259-6333

                  (b)      if to Buyer:

                           MGI Pharma, Inc.
                           6300 West Old Shakopee, Suite 110
                           Bloomington, MN 55438
                           Attention:  Manager Legal Affairs
                           Telecopier Number:  (612) 346-4800

                           with a copy to:

                           Dorsey & Whitney

                                       21
<PAGE>

                           220 South Sixth Street
                           Minneapolis, MN  55402
                           Attention:  Timothy J. Hearn, Esq.
                           Telecopier Number:  (612) 340-8827

                  Notice so given (in the case of notice so given by mail) shall
be deemed to be given and received on the third calendar day after mailing or
the next business day if sent by a reputable overnight courier and (in the case
of notice so given by telecopier or personal delivery) on the date of actual
transmission or (as the case may be) personal delivery.

                  Section 10.3 Survival of Representations and Warranties. The
respective representations and warranties of the Parties hereto shall survive
the Closing and shall remain in full force and effect for a period of twelve
(12) months after the Closing Date. In no event shall any amounts be recovered
from an Indemnifying Party under Sections 8.1(a)(i) or 8.1(b)(i) for any matter
for which a written notice of claim specifying in reasonable detail the specific
nature of the Costs and the estimated amount of such Costs ("Claim Notice") is
not delivered to the other Party prior to the close of business on the twelve
(12) month anniversary date of the Closing Date, and the indemnities granted by
Seller and Buyer in Sections 8.1(a)(i) or 8.1(b)(i) shall terminate twelve (12)
months after the Closing Date; provided, however, that such indemnities shall
survive with respect only to the specific matter that is the subject of any
Claim Notice delivered in good faith within such twelve (12) month period and
otherwise in compliance with the requirements of Article 8 until the earlier to
occur of (a) the date on which a final nonappealable resolution of the matter
described in such Claim Notice has been reached or (b) the date on which the
matter described in such Claim Notice has otherwise reached final resolution.

                  Section 10.4 Amendment. This Agreement may not be amended
except by an instrument in writing signed on behalf of each of the Parties
hereto.

                  Section 10.5 Waiver. At any time prior to the Closing, any
term, provision or condition of this Agreement may be waived in writing (or the
time for performance of any of the obligations or other acts of the Parties
hereto may be extended) by the Party that is entitled to the benefits thereof.

                  Section 10.6 Parties in Interest. This Agreement may not be
assigned by a Party without the prior written consent of the other Parties
hereto provided, however, that either Party may assign this Agreement without
such consent in connection with the sale or other transfer for of all or
substantially all of its assets. This Agreement shall not run to the benefit of
or be enforceable by any Person other than a Party to this Agreement or an
Aggrieved Party under Article 8 hereof and, subject to the first sentence of
this Section, its successors and assigns.

                  Section 10.7 Seller's Knowledge. When "to the knowledge of
Seller" or similar phrase is used herein it shall be deemed to refer to the
actual knowledge of the General Counsel of Seller.

                  Section 10.8 Entire Agreement; Governing Law; Miscellaneous.
This Agreement (including the documents and instruments referred to herein)
constitutes the entire

                                       22
<PAGE>

agreement and supersedes all other prior agreements and undertakings, both
written and oral, among the Parties, or any of them, with respect to the subject
matter hereof; is not intended to confer upon any other Person any rights or
remedies hereunder; and shall be governed in all respects, including validity,
interpretation and effect, by the internal laws of the State of Maryland without
giving effect to the principles of conflicts of laws thereunder. This Agreement
may be executed in one or more counterparts which together shall constitute a
single agreement. If any provisions of this Agreement shall be held to be
illegal, invalid or unenforceable under any applicable law, then such
contravention or invalidity shall not invalidate the entire Agreement. Such
provision shall be deemed to be modified to the extent necessary to render it
legal, valid and enforceable, and if no such modification shall render it legal,
valid and enforceable, then this Agreement shall be construed as if not
containing the provision held to be invalid, and the rights and obligations of
the parties shall be construed and enforced accordingly. The Article and Section
headings used or contained in this Agreement are for convenience of reference
only and shall not affect the construction of this Agreement.

                  Section 10.9 Waiver of Bulk Sales. The Parties waive
compliance with any bulk sales or similar laws in connection with the
consummation of the transactions contemplated by the other agreements
contemplated by this Agreement.

                  Section 10.10 Exhibits and Schedules. All Exhibits and
Schedules referred to herein form an integral part of this Agreement and are
incorporated into this Agreement by reference.

                  IN WITNESS WHEREOF, the parties hereto have caused this
Agreement to be executed as of the date first above written.

                                         MEDIMMUNE ONCOLOGY, INC.


                                         By:       /s/ David M. Mott
                                            ------------------------------------
                                              Name:
                                              Title:

                                         MGI PHARMA, INC.


                                         By:       /s/ Charles N. Blitzer
                                            ------------------------------------
                                              Name:  Charles N. Blitzer
                                              Title: President and Chief
                                                     Executive Officer


                                         By:       /s/ Leon O. Moulder
                                            ------------------------------------
                                              Name:  Leon O. Moulder
                                              Title: Executive Vice President

                                       23
<PAGE>

                                    EXHIBIT A
                                    ---------

                                 PURCHASE PRICE:
                       FIXED PAYMENTS AND ROYALTY PAYMENTS


I.       Fixed Payments
         --------------

Buyer shall pay to Seller an aggregate of $7,200,000 in Fixed Payments as set
forth below and in accordance with Section 2.6:

                  Fixed Payment             Fixed Payment Quarter
                  -------------             ---------------------
                  $1,200,000                         One
                  $1,200,000                         Two
                  $1,200,000                         Three
                  $1,200,000                         Four
                  $1,200,000                         Five
                  $1,200,000                         Six

All amounts are in U.S. Dollars


II.      Royalty Payments
         ----------------

Buyer shall pay to Seller Royalty Payments for the period through and including
Contract Year Ten, inclusive, as set forth below and in accordance with Section
2.7:

1.       During Contract Year One through Contract Year Three, inclusive, an
         amount equal to *** of Net Sales; and
2.       During Contract Year Four through Contract Year Ten, inclusive, an
         amount equal to *** of Net Sales;

provided that such payments with respect to foreign sales of the Product through
distributors of Buyer (including F.H. Faulding & Co. Ltd., Swedish Orphan AB and
Teva Pharmaceuticals Industries Ltd. in connection with their existing
respective sublicenses from Seller which shall be assigned to Buyer) will be
calculated based on the above percentages of Buyer's supply margins and royalty
income from such distributors.

In the event one or more Persons unaffiliated with Buyer sells or markets a
generic product equivalent to the Product the sales of which constitute *** or
more, on a per unit basis, of the total market for altretamine in any particular
Contract Year in any particular country in the Territory, as determined by
Seller based on generally accepted marketing information sources for the
industry, the royalty rates set forth above applicable to such Contract Year in
such country, and only such Contract Year in such country, shall be reduced by
***.

***      Denotes confidential information that has been omitted from the exhibit
         and filed separately, accompanied by a confidential treatment request,
         with the Securities and Exchange Commission pursuant to Rule 24b-2 of
         the Securities Exchange Act of 1934.


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