4,5 dihydro-2-lower-alkoxycarbonyl-amino-4-phenylimidazoles and substituted phenyl derivatives thereof
CA 1070697 A · Owner: Syntex (U.S.A.) Llc · Inventors: Weinhardt, Klaus K.; Dvorak, Charles A.; Roszkowski, Adolph P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds having the formula: (I), wherein R is lower alkyl; R1 is hydrogen lower alkyl, hydroxy, lower alkoxy, fluoro chloro, bromo, iodo or trifluoromethyl and R2 is hydrogen or is a substituent which is identical to the R1 substituent and wherein R1 and R2 can each be at any different position on the phenyl ring or R1 and R2 together form methylenedioxy and are at adjacent carbon atoms on the phenyl ring and pharmaceutically acceptable salts thereof. In one method the compounds can be prepared by treating the corresponding .beta.-amino-.beta.-(phenyl or substituted phenyl)-ethylamine with the desired 1,3-bis(alkoxycarbonyl)-S-methylisothiourea or 1-alkoxycarbonyl-S-methylisothiourea. The …
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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 January 29, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 29, 1997.
- 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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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.