Arylaminoimidazoline derivatives and the preparation thereof
CA 1100513 A · Owner: Chemie Linz Aktiengesellschaft · Inventors: Enzenhofer, Rita; Franzmair, Rudolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel Arylaminoimidazoline derivatives of the formulas in which R1 and R2 are halogen or an alkyl group with 1 to 4 C atoms, R3 is hydrogen or an alkyl radical with 1 - 4 C atoms and n and m each represent an integer from 1 to 3 the sum of n + m being an integer from 2 to 5 inclusive and their salts, are prepared by reacting aniline derivatives of the formula, with 1-acylimidazolidine-2-one of the formula in the presence of phosphorus oxychloride. This novel compounds have a pronounced analgesic action. O.Z.647/A
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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 May 5, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 5, 1998.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.