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:
Oct. 24, 2006
Filed:
Mar. 04, 2002
Kouji Sato, Edogawa-ku, JP;
Tsutomu Yagi, Edogawa-ku, JP;
Yutaka Kitagawa, Edogawa-ku, JP;
Shigeru Ichikawa, Edogawa-ku, JP;
Akihiro Imura, Edogawa-ku, JP;
Kouji Sato, Edogawa-ku, JP;
Tsutomu Yagi, Edogawa-ku, JP;
Yutaka Kitagawa, Edogawa-ku, JP;
Shigeru Ichikawa, Edogawa-ku, JP;
Akihiro Imura, Edogawa-ku, JP;
Daiichi Pharmaceutical Co., Ltd., Tokyo, JP;
Abstract
A process for producing a compound represented by the following formula (II) which comprises treating a compound represented by the following formula (I) (wherein R, Rand Rrepresent each a specific substituent) with an enzyme capable of asymmetrically hydrolyzing an ester and the novel compound (II). The process of the present invention makes it possible to easily obtain an optically active 2-azetidinone derivative in a large amount at a low cost