The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 09, 2019
Filed:
Mar. 25, 2016
Applicant:
Otsuka Pharmaceutical Co., Ltd., Tokyo, JP;
Inventors:
Assignee:
OTSUKA PHARMACEUTICAL CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 211/46 (2006.01); C07B 37/04 (2006.01); A61K 31/4465 (2006.01); A61K 31/424 (2006.01);
U.S. Cl.
CPC ...
C07D 211/46 (2013.01); A61K 31/424 (2013.01); A61K 31/4465 (2013.01); C07B 37/04 (2013.01);
Abstract
The present invention provides a method for producing 1-(4-hydroxyphenyl)-4-(4-trifluoromethoxyphenoxy)piperidine or a salt thereof, the method including the step of heating hydroquinone and 4-(4-trifluoromethoxyphenoxy)piperidine. This method can produce 1-(4-hydroxyphenyl)-4-(4-trifluoromethoxyphenoxy)piperidine or a salt thereof in an industrially advantageous manner.