Nonpeptide substituted benzothiazepines as vasopressin antagonists
CA 2389439 A1 · Owner: Chen, Robert H. K. · Inventors: Chen, Robert H. K.; Urbanski, Maud J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention is directed to nonpeptide substituted benzodiazepines of Formula (I), wherein A, X, Z, Bp, W, n, R1 and R2 are as described in the specification, which are useful as vasopressin receptor antagonists for treating conditions involving increased vascular resistance and cardiac insufficiency. Pharmaceutical compositions comprising a compound of Formula (I) and methods of treating conditions such as hypertension congestive heart , failure, cardiac insufficiency coronary vasospasm, cardiac ischemia, liver cirrhosis, renal vasospasm, renal failure cerebral edema and ischemia, stroke, thrombosis or water retention are also disclosed.
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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 November 2, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 2, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 2, 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
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.