Preparation of antihypercholesterolemic tetrazole compounds and intermediates thereof
CA 1340430 C · Owner: Bristol-Myers Squibb Company · Inventors: Han, William Teh-Wei; Wright, John Jessen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention provides novel intermediates of the formula, in substantially the cis or cis-(4R,6S) form wherein R9 and R10 each are C1-4alkyl or R9 and R10 taken, together with the carbon atom to which they are attached, is cyclopentyl, cyclohexyl or cycloheptyl; and, R12 is hydrogen, C1-4alkyl or a metal cation and processes thereof which are useful for the preparation of antihypercholesterolemic agents.
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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 March 9, 1999. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 9, 2016.
- 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.