Furo-(3,4-c)-pyridine derivatives preparation thereof and therapeutic compositions containing the same
CA 1257269 A · Owner: Societe De Conseils De Recherches Et D'Applications Scientifiques (S.C.R .A.S.) · Inventors: Esanu, Andre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to 1,3-dihydro-6-methyl-7hydroxy-furo-(3,4-c)-pyridine derivatives of the general formula I, I, wherein each of A1 and A2 independently represents various hydrocarbon groups and therapeutically acceptable addition salts thereof ; to a process for the preparation of the same comprising oxidizing the secondary alcohol .alpha.4 3-o-, isopropylidene-1-methyl-5-(l-hydroxy-l-A1)-methyl pyridine by any usual technique, reacting the resultant ketone with a compound of the general formula XA2 wherein X stands for Br or I in the presence of magnesium in diethyl ether at the boil and treating the resultant tertiary alcohol with an acidic agent to provoke breaking of 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 July 11, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 11, 2006.
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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.