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:
Nov. 14, 2006
Filed:
Dec. 04, 2003
Applicants:
Mitsutaka Goto, Osaka, JP;
Mitsuhisa Yamano, Osaka, JP;
Shinji Kawaguchi, Osaka, JP;
Inventors:
Assignee:
Takeda Pharmaceutiacal Company Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F 15/00 (2006.01); C07C 29/14 (2006.01); C07C 69/66 (2006.01); C07D 307/02 (2006.01); C07D 303/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A transition metal complex having 2,2'-bis[bis(3,5-di-tert-butyl-4-methoxyphenyl)phosphino]-1,1′-binaphthyl as a ligand. The presence of the transition metal complex in the reaction system of an asymmetric reaction system allows the preparation of an objective compound having an objective absolute configuration with improved efficiency.