Substituted 1,2,3,4-tetrahydroisoquinolines with angiotensin ii receptor antagonist properties
CA 2134765 A1 · Owner: Hodges, John Cooke · Inventors: Blankley, Clifton John; Hodges, John Cooke; Klutchko, Sylvester
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to novel substituted 1,2,3,4-tetrahydroisoquinolines which are useful in the treatment of vascular restenosis, various disorders of the central nervous system in the, regulation of female reproductive functions in cognitive enhancement, in atherosclerosis and in treating excessive AVP secretory disorders. Novel intermediates useful in the preparation of the compounds are also disclosed. Methods of using the compounds and pharmaceutical compositions containing them are disclosed.
Read the whole patent
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 April 19, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 19, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 19, 2015.
- 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.