1-(hydroxystyryl)-5h-2,3-benzodiazepine derivatives, process for the preparation thereof and pharmaceutical compositions containing the same
CA 1280748 C · Owner: Rabloczky, Gyorgy · Inventors: Heltai, Krisztina; Zolyomi, Gabor; Moravcsik, Imre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to new 1-(hydroxystyryl)- -5H-2,3-benzodiazepine derivatives of the general formula (I) and to a process for the preparatlon thereof further-, more to pharmaceutical compositions containing the same (I), wherein, R stands for a hydrogen or halogen atom or a C1-4, alkoxy group, R1 represents a hydrogen atom or a C1-4 alkyl group R2 and R3 are identical and denote a C1-4 alkyl group - 2 -, or combined they denote a methylene group. The compounds of the general formula (I) possess valuable positive inotropic (cardiotonic) potency are, capable to increase the myocardiac contractile force (heart performance in cardiac insufficiency) thus they, can be applied in the therapy …
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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
- Granted February 26, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 26, 2008.
- 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.