6-alpha hydroxy derivatives of mevinic acids
CA 2037877 A1 · Owner: Chao, Sam T. · Inventors: Varma, Ravi K.; Gordon, Eric M.; Chao, Sam T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds of the formula, and pharmaceutically acceptable salts thereof have been found to possess activity as cell-selective HMG-CoA reductase inhibitors, thus making them useful as antihypercholesterolemic agents. In the above formula, Z is , or , R1 is hydrogen alkyl, cycloalkyl, aryl or, arylalkyl; and R2 is hydrogen, alkyl, ammonium, or alkali metal.
Read the whole patent
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 March 8, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 8, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 8, 2013.
- 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.