Novel branched substituted amino derivatives of 3-amino-1-phenyl-1h1,2,4triazol, methods for producing them and pharmaceutical compositions containing them
CA 2398772 C · Owner: Gully, Danielle · Inventors: Gully, Danielle; Roger, Pierre; Maffrand, Jean-Pierre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to compounds of general formula (I) wherein in particular, R1, R2, and R3 represent each independently of each other, hydrogen a halogen atom; a (C1-C5)alkyl; a (C1-C5)alkoxy; a trifluoromethyl or a group S-R wherein R represents a (C1-C5)alkyl; R4 R5 represents a (C1-C5)alkyl; an alkynyl with 3 to 5 carbon atoms; a (C3-C5)cycloalkyl or an Ra-X-(C1-C2)alkyl group wherein Ra represents a (C1-C3)alkyl and X represents O; R6 represents -CHR7R8 wherein R7 represents a phenyl group which can be substituted by one or more radicals Z' in position 3 4 and 5, with Z' representing a halogen; a (C1-C5)alkyl; a (C1-C5)alkyl-X- or (C1-C3)alkyl-X-(C1-C2)alkyl or X represents O; or a …
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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 December 14, 2000 and granted July 5, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 14, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 14, 2022.
- 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
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.