Method of producing cyclic-aminophenyl ether compound
CA 1110246 A · Owner: Yamanouchi Pharmaceutical Co. Ltd. · Inventors: Kojima, Tadao; Ohata, Isao; Matsumoto, Jun
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method of producing cyclic-aminophenyl ether compounds or the pharmacologically acceptable salts thereof having the formula:, wherein R1 represents hydrogen atom or a lower alkyl group, R2 represents a cyclohexyl group which may have been substituted by lower alkyl group(s) an alkyl group, containing 1 to 20 carbon atoms A phenyl group or a, benzyl group, R3 represents hydrogen atom a lower alkyl, group, or a cyclohexyl group which may have been substituted by lower alkyl group(s); said R2 and R3 may, however, form together with the adjacent carbon atom a cyclohexane ring which may have been substituted by lower alkyl group(s) and n is 4 or 5. The above compounds have a hypolipemic activity …
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 October 6, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 6, 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.