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. 13, 2001
Filed:
Aug. 03, 1998
Applicant:
Inventors:
Koichi Kinoshita, Takasago, JP;
Fumihiko Kano, Himeji, JP;
Takahiro Okubo, Kobe, JP;
Yasuyoshi Ueda, Himeji, JP;
Assignee:
Kaneka Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
C07D / ;
Abstract
A process for producing captopril of the following formula (1) comprising subjecting a substrate compound of the following general formula (2) to a hydrolysis reaction in aqueous medium to remove the RCO group and isolating the product compound, said hydrolysis reaction in aqueous medium being conducted in the presence of a strong acid at pH not over 1 and a reaction temperature not below 40° C.