2-azabicyclo 3.1.0 hexane derivatives and a process for their preparation
CA 1267902 C · Owner: Hoechst Aktiengesellschaft · Inventors: Henning, Rainer; Nrbach, Hansjorg; Becker, Reinhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to compounds of the formula IIIa or IIIb. (IIIa) with mirror image, (IIIb) with mirror image wherein W denotes hydrogen or a group esterifying carboxyl and, a process for the preparation of compounds of the formula IIIa or IIIb. The compounds of the formula IIIa or IIIb are intermediates in the process for the preparation of compounds of the formula I:, (I), The compounds of the formula I and their salts have a long-lasting and strong hypotensive effect. They are potent inhibitors of angiotension converting enzyme (ACE inhibitors) and can be employed to control hypertension of a variety of etiologies.
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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 April 17, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 17, 2007.
- 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
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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.