1-¬(1,1-diphenyl)-1-alkenyl pierazine derivatives, method of preparation and pharmaceutical compositions in which they are present
CA 1295617 C · Owner: Buzas, Andre · Inventors: Buzas, Andre; Ollivier, Roland
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to 1-(1,1-diphenyl)-1alkenylpiperazine derivatives corresponding to general formula I:, (I), in which R1, R2, R3, R4 and R5 which are identical or, different, represent a hydrogen atom a halogen atom, a, lower alkyl group, a lower alkenyl group a lower, alkoxy group or the trifluoromethyl group; n is an integer between 1 and 3; m is an integer from 0 to 3; Z represents a hydrogen atom, a lower alkyl group or an aryl group of the formula:, in which R6 has the same meaning as R1 R2, R3 or R4;, and A is an oxygen atom or a group and to their, pharmaceutically acceptable salts.
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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 February 11, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 11, 2009.
- 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.