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:
May. 27, 2014
Filed:
Jun. 08, 2009
Koji Sato, Tokyo, JP;
Tsutomu Yagi, Tokyo, JP;
Kenji Sakuratani, Tokyo, JP;
Yuichiro Tani, Tokyo, JP;
Koji Sato, Tokyo, JP;
Tsutomu Yagi, Tokyo, JP;
Kenji Sakuratani, Tokyo, JP;
Yuichiro Tani, Tokyo, JP;
Daiichi Sankyo Company, Limited, Tokyo, JP;
Abstract
The present invention provides a method for producing a 1-biphenylmethylimidazole compound having superior angiotensin II receptor antagonistic activity, or an intermediate thereof. The present invention provides a method for producing a compound having the formula (5) (R, R: H, an alkyl group) by oxidizing a compound having the formula (1) (R: H, an alkyl group) using an oxidizing agent in the presence of a radical initiation reagent, and then reacting with an ammonia-generating reagent and a compound having the formula RCHO(R: H, an alkyl group) or a compound having the formula RC(OR)(R: H, an alkyl group; R: an alkyl group).