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:
Mar. 08, 2016
Filed:
Jun. 14, 2012
Applicants:
Yoichi Kawabata, Osaka, JP;
Yasuhiro Sawai, Osaka, JP;
Kazuaki Kanno, Osaka, JP;
Naotaka Sawada, Osaka, JP;
Inventors:
Yoichi Kawabata, Osaka, JP;
Yasuhiro Sawai, Osaka, JP;
Kazuaki Kanno, Osaka, JP;
Naotaka Sawada, Osaka, JP;
Assignee:
Takeda Pharmaceutical Company Limited, Osaka-Shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07D 233/64 (2006.01); C07D 487/04 (2006.01);
U.S. Cl.
CPC ...
C07D 233/64 (2013.01); C07D 487/04 (2013.01);
Abstract
The present invention provides an advantageous production method of an imidazole derivative, which is suitable for industrial production. Compound (VI) is produced by reacting compound (I) with a Grignard reagent or a magnesium reagent, and a lithium reagent, and then reacting the resulting compound with compound (V).