Patent Yard Sign in
Expired Canadian patentCanada

5-(w-phenethylamino-alkyl)-4,5,6,7-tetrahydro-thieno- (3,2-c)-pyridine derivatives

CA 1292233 C · Owner: Societe De Conseils De Recherches Et D'Applications Scientifiques (S.C.R .A.S.) · Inventors: Esanu, Andre

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

This invention relates to new derivatives of 5(.omega.-phenethylamino-alkyl)-4,5,6,7-tetrahydro-thieno-(3,2-c)pyridine of the formula, wherein n is an integer of from 2 to 5 R1 represents a, hydrogen atom or a 3,4-dimethoxyphenyl group R2 represents a, hydrogen atom, an alkyl group having up to 4 carbon atoms or a 4-cyano-4-(3,4-dimethoxyphenyl)-5-methylhexyl group and R3 represents two or three methoxy groups to therapeutically, acceptable salts thereof to a process for the preparation of, these derivatives comprising condensing a 5-(.omega. -chloroalkyl)- 4,5,6,7- tetrahydro- thieno- (3,2-c)- pyridine with the appropriate phenethyl derivative at from 90 to 130°C under nitrogen circulation …

Read the whole patent

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 November 19, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 19, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 12, 1985
GrantedNovember 19, 1991
Term endedNovember 19, 2008
Patent numberCA 1292233 C
Classification (IPC)C07D495/04 +1 more

Timeline

Timeline From CIPO dates

19861989199219951998200120042007Application filedNov 12, 1985Patent grantedNov 19, 1991Term endedNov 19, 2008

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.