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Generated: August 21, 2017

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Summary for Patent: ► Subscribe

Title: Optically active 5H-pyrrolo[3,4-b]pyrazine derivative, its preparation and pharmaceutical compositions containing it
Abstract:Dextrorotatory isomer of 6-(5-chloro-2-pyridyl)-5-[(4-methyl-1-piperazinyl)carbonyloxy]-7-oxo-6,7-d ihydro-5H-pyrrolo[3,4-b]pyrazine, its preparation and pharmaceutical compositions containing it which are usable as tranquillizers and hypnotics.
Inventor(s): Cotrel; Claude (Paris, FR), Roussel; Gerard (Soisy sur Seine, FR)
Assignee: Sepracor Inc. (Marlborough, MA)
Application Number:09/722,438
Patent Claim Types:
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Compound; Composition;

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Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
France91 00490Jan 17, 1991

International Patent Family for Patent: ► Subscribe

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina248024► Subscribe
Austria121089► Subscribe
Australia1226492► Subscribe
Australia3032195► Subscribe
Australia671797► Subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

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Serving 500+ biopharmaceutical companies globally:

Medtronic
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Federal Trade Commission
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