Disubstituted proline derivatives, a process for their preparation and their use
CA 1235128 A · Owner: Hoechst Aktiengesellschaft · Inventors: Henning, Rainer; Urbach, Hansjorg
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 IV, (IV), in which R1 and R2 are identical or different and represent straight-chain or branched alkyl having 1 to 6 carbon atoms or represent (C6 to C10)-aryl, or together represent one of the chains -(CH2)n- or -(CH2)p-CH=CH-(CH2)q n, p and q each, being an integrer, n being 3-6 and (p+q) being 1-4 and R, represents hydrogen, alkyl having 1 to 10 carbon atoms aralkyl having 7 to 9 carbon atoms, cycloalkyl having 5 to 10 carbon atoms, alkylcycloalkyl having 6 to 12 carbon atoms or cycloalkylalkyl having 6 to 12 carbon atoms and to, processes for their preparation. Compounds of the formula IV are useful intermediates in the production of …
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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 12, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 12, 2005.
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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.