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:
Sep. 07, 2010
Filed:
Feb. 23, 2006
Yukiyoshi Yamazaki, Higashimurayama, JP;
Takaaki Araki, Higashimurayama, JP;
Minoru Koura, Kawagoe, JP;
Kimiyuki Shibuya, Tokorozawa, JP;
Yukiyoshi Yamazaki, Higashimurayama, JP;
Takaaki Araki, Higashimurayama, JP;
Minoru Koura, Kawagoe, JP;
Kimiyuki Shibuya, Tokorozawa, JP;
Kowa Co., Ltd., Nagoya-shi, JP;
Abstract
A process for obtaining a compound (1) and an intermediate thereof in high yield and high optical yield is provided. A process for producing a compound (4), the process including reacting a compound (2) with a compound (3) in the presence of a base; and a process for producing a compound (1), the process including reacting a compound (2) with a compound (3) in the presence of a base to yield a compound (4) and then deesterifying the compound (4). wherein R represents an alkyl group having 1 to 6 carbon atoms or an aralkyl group having 7 to 8 carbon atoms.