3-(ureidocyclohexylamino)-propane-1,2-diol- derivatives
CA 1215711 A · Owner: Ciba-Geigy Investments Ltd. · Inventors: Werner, Lincoln H.; Ford, Neville
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
3-(Ureidocyclohexylamino)-propane-1,2-diol-derivatives Abstract of the disclosure, The invention concerns antihypertensive and cardiocative compounds of the formula I, (I), wherein Ar represents a (monocyclic or optionally partially hydrogenated bicyclic) carbocyclic or heterocyclic optionally substituted aromatic radical; R represents hydrogen alkanoyl or aroyl; R1 and, R2 represent independently hydrogen or lower alkyl; or R1 and R2 combined represent alkylene of 2 to 7 carbon atoms separating the two nitrogen atoms thereto attached by 2 to 4 carbon atoms; R3 and R4 independently are hydrogen or lower alkyl; and X represents oxo (O) or thio (S); and salts thereof. They are prepared for …
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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 December 23, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 23, 2003.
- 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.