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:
Feb. 19, 2008
Filed:
Oct. 12, 2006
Applicant:
Akio Imai, Kamisu, JP;
Inventor:
Akio Imai, Kamisu, JP;
Assignee:
Eisai R&D Management Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 211/02 (2006.01); C07D 211/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
1-Benzyl-4-[(5,6-dimethoxy-1-indanon)-2-yl]methylpiperidine or hydrochloride thereof, which is useful as a drug, can be produced in high purity by safer and easier operations suitable for industrial production by subjecting 1-benzyl-4-[(5,6-dimethoxy-1-indanon)-2-ylidene]methyl-piperidine or a solvate thereof to catalytic hydrogenation in the presence of a palladium-alumina catalyst and if necessary, converting the thus obtained compound to its hydrochloride.