Phenyalkylamines
CA 1053251 A · Owner: Sterling Drug Inc. · Inventors: Zenitz, Bernard L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
N-{3-R1-(phenyl)-C(=X)-phenyl-lower-alkyl}aminess wherein R1 is hydrogen or 1 or 2 substituents -C(=X) represents , , , , or , and R3, is hydrogen or lower-alkyl having anti-inflammatory utility are, prepared either by reduction of a 3-R1-(phenyl)-CO-phenyl-loweralkanoylamine; by benzoylating a phenyl-lower-alkylamine; by reaction of a 3-lithio-phenyl-lower-alkylamine with a R1-(phenyl)carboxaldehyde, a R1-(phenyl)lower-alkyl ketone or a R1-(phenyl)carbonitrile or by transformations involving manipulations of a carbonyl or carbinol group.
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 April 24, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 24, 1996.
- 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.