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Generated: December 12, 2017

DrugPatentWatch Database Preview

Details for Patent: 4,906,755

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Summary for Patent: 4,906,755

Title: Esters of hexahydro-8-hydroxy-2,6-methano-2H-quinolizin-3-(4H)-one and related compounds
Abstract:The present invention is directed to a group of esters of hexahydro-8-hydroxy-2,6-methano-2H-quinolizin-3(3H)-ones and related compounds. The compounds are prepared from the appropriate carboxylic acids and alcohols by standard procedures or, where steric factors are significant, a new process which makes use of heavy metal salts of super acids can be used. The compounds involved are useful in the treatment of migraine and similar disorders and in cytotoxic drug-induced vomiting.
Inventor(s): Gittos; Maurice W. (Plobsheim, FR)
Assignee: Merrell Dow Pharmaceuticals Inc. (Cincinnati, OH)
Application Number:07/376,172
Patent Claim Types:
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International Patent Family for Patent: 4,906,755

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina246264► Subscribe
Argentina246970► Subscribe
Austria109779► Subscribe
Austria129153► Subscribe
Australia3021489► Subscribe
Australia600318► Subscribe
Australia624115► Subscribe
Australia8059687► Subscribe
Canada1325634► Subscribe
Canada1329203► 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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Harvard Business School
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