Substituted triazolinones, triazolinethiones and triazolinimines as angiotensin ii antagonists
CA 2021954 C · Owner: Chang, Linda L. · Inventors: Walsh, Thomas F.; Ashton, Wallace T.; Chang, Linda L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There are disclosed new substituted, triazolinone triazolinethione, and triazolinimine, compounds which are useful as angiotensin II antagonists. These compounds have the general formula: wherein:, R1 is, (a) -CO2R4, (b) -SO3R5 (c) -NHSO2CF3, (d) -PO(OR5)2, (e) -SO2-NH-R9 (f) -CONHOR5, (g) -SO2NH-heteroaryl, (h) -CH2SO2NH-heteroaryl (i) -SO2NHCOR23, (j) -CH2SO2NHCOR23, (k)-CONHSO2R23 (l)-CH2CONHSO2R23, , (m)-NHSO2NHCOR23, (n)-NHCONHSO2R23 (s) -CONHNNSO2CF3, wherein:, heteroaryl is an unsubstituted monosubstituted or disubstituted 5- or 6-membered aromatic ring which contains from 1 to 3 heteroatoms selected from the group consisting of O, N and S and wherein the substituents are members …
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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 25, 1990 and granted January 16, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 25, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 25, 2012.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.