Hiv-inhibiting benzeneacetamide derivatives
CA 2084508 A1 · Owner: Verdonck, Marc Gustaaf Celine · Inventors: Van Daele, Georges Henri Paul; Bosmans, Jean-Paul Rene Marie Andre; Janssen, Paul Adriaan Jan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A compound for use as a medicine having formula (I) a, pharmaceutically acceptable acid addition salt form or a stereochemically isomeric form thereof, wherein R1 and R2 each independently are hydrogen, C1-6alkyl or C3-6cycloalkyl; or R1 and R2 taken together with the nitrogen atom bearing said R1 and R2 may form a pyrrolidinyl, piperidinyl, morpholinyl piperazinyl or, 4-C1-4alkylpiperazinyl group; X is O or S; R3 is hydrogen or C1-6alkyl; R4, R5 and R6 each independently are hydrogen halo, C1-6alkyl, C1-6alkyloxy, nitro, trifluoromethyl cyano, aminomethyl, carboxyl, C1-4alkyloxycarbonyl C1-4alkyl-carbonyl, aminocarbonyl or hydroxy; R7 is hydrogen or halo; and R8 R9 and R10 each …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed July 4, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 4, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 4, 2013.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.