Process for the production of morpholine and piperidine derivatives and the products thereof
CA 1107282 A · Owner: Hoffmann-La Roche Limited · Inventors: Pfiffner, Albert; Bohnen, Klaus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to heterocyclic compounds. More particularly, the invention is concerned with a process for the production of morpholine and piperidine derivatives and the products of such process. The morpholine and piperidine derivatives are useful as active ingredients of agricultural, horticultural and pharmaceutical compositions. The compounds have the formula (I), wherein R1 and R3 each represent a hydrogen atom or a methyl group; R4, R5 and R6 each represent a hydrogen atom or an alkyl group containing from 1 to 4 carbon atoms and, two of the symbols R4, R5 and R6 can each be bonded to the same carbon atom or can together form a fused alicyclic or aromatic 6-membered …
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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 August 18, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 18, 1998.
- 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.