Aralkyl-1,4-dihydropyridines, a method for their preparation and pharmaceutical compositions containing them
CA 1322754 C · Owner: Germini, Mauro · Inventors: Tofanetti, Odoardo; Frigerio, Marco; Germini, Mauro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
NEW ARALKYL-1,4-DIHYDROPYRIDINES A METHOD FOR THEIR, PREPARATION AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM, 1,4-Dihydropyridines of formula I: (I), wherein:, -X is a -CO2R1, cyano, nitro -COCH3 group;, -R and R1, that can be the same or different are a, primary, secondary or tertiary alkyl group having from, 1 to 6 carbon atoms, that can be saturated or unsaturated, linear or branched, and substituted or not by one or more hydroxy, monoalkylamino dialkylamino, C1-C6-alkoxy, phenoxy or eventually substituted aryl; -R2 is hydrogen;, -R3 is hydrogen or a hydroxy -OCOR5, OSO2R6, azide, amino, -NHPO(OR7)2 -NHCOR5 group, a C1-C4-alkoxy, group, halogen atom selected in the group of fluorine, …
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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 October 5, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 5, 2010.
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Timeline
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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.