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Generated: October 23, 2017

DrugPatentWatch Database Preview

Details for Patent: 5,002,953

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Summary for Patent: 5,002,953

Title: Novel compounds
Abstract:Compounds of formula (I): ##STR1## or a tautomeric form thereof, or a pharmaceutically acceptable salt thereof, or a pharmaceutically acceptable solvate thereof, wherein: A.sup.1 represents a substituted or unsubstituted aromatic heterocyclyl group; R.sup.1 represents a hydrogen atom, an alkyl group, an acyl group, an aralkyl group, wherein the aryl moiety may be substituted or unsubstituted, or a substituted or unsubstituted aryl group; R.sup.2 and R.sup.3 each represent hydrogen, or R.sup.2 and R.sup.3 together represent a bond; A.sup.2 represents a benzene ring having in total up to five substituents; and n represents an integer in the range of from 2 to 6; pharmaceutical compositions containing such compounds and the use of such compounds and compositions in medicine.
Inventor(s): Hindley; Richard M. (Surrey, GB2)
Assignee: Beecham Group p.l.c. (Brentford, GB2)
Application Number:07/457,272
Patent Claim Types:
see list of patent claims
Compound; Composition; Use;

No matches for this query

Foreign Priority and PCT Information for Patent: 5,002,953

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom8720825Sep 04, 1987
United Kingdom8727987Nov 30, 1987
United Kingdom8802454Feb 04, 1988

International Patent Family for Patent: 5,002,953

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Germany10199003► Subscribe
Japan2817840► Subscribe
Denmark490288► Subscribe
Denmark175176► Subscribe
Denmark200001556► Subscribe
European Patent Office0306228► SubscribeSPC/GB01/002United Kingdom► Subscribe
European Patent Office0306228► Subscribe2001C/004Belgium► Subscribe
European Patent Office0306228► SubscribeC300034Netherlands► Subscribe
European Patent Office0306228► Subscribe38/2000Austria► Subscribe
European Patent Office0842925► 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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