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.

Date of Patent:
Nov. 17, 2009

Filed:

Jan. 28, 2004
Applicants:

Makoto Tokunaga, Hokkaido, JP;

Yasushi Tsuji, Hokkaido, JP;

Yasushi Obora, Hokkaido, JP;

Yoji Hori, Kanagawa, JP;

Hiroshi Aoyama, Hokkaido, JP;

Inventors:

Makoto Tokunaga, Hokkaido, JP;

Yasushi Tsuji, Hokkaido, JP;

Yasushi Obora, Hokkaido, JP;

Yoji Hori, Kanagawa, JP;

Hiroshi Aoyama, Hokkaido, JP;

Assignee:

Japan Science and Technology Agency, Kawaguchi-Shi, Saitama, JP;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 31/045 (2006.01); A61K 31/19 (2006.01);
U.S. Cl.
CPC ...
Abstract

A process for producing an optically active compound based on the hydrolysis of an alkenyl ester compound or the cleavage of an alkenyl ether compound. The process uses neither an acidic compound nor a basic compound, and reactants can be reacted in a high concentration. It does not necessitate a buffer, nutrient, etc. unlike enzymatic reactions or reactions using a microorganism. It is a simple process which attains a satisfactory production efficiency. The process, which is for producing an optically active carboxylic acid or optically active alcohol represented by the general formula (VI): (wherein R, R, and Rare different groups; and A represents methylene, carbonyl, or a single bond), is characterized by causing water to act on an alkenyl ester or alkenyl ether represented by the general formula (I): (wherein R, R, and Reach represents hydrogen, alkyl, etc.) in the presence of a specific transition metal complex having an optically active ligand.


Find Patent Forward Citations

Loading…