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:
Aug. 06, 2013
Filed:
May. 17, 2012
Yasuhiro Torisawa, Tokushima, JP;
Kaoru Abe, Tokushima, JP;
Yasuaki Muguruma, Tokushima, JP;
Shigekazu Fujita, Okazaki, JP;
Hidenori Ogawa, Tokushima, JP;
Naoto Utsumi, Tokushima, JP;
Masahiro Miyake, Tokushima, JP;
Yasuhiro Torisawa, Tokushima, JP;
Kaoru Abe, Tokushima, JP;
Yasuaki Muguruma, Tokushima, JP;
Shigekazu Fujita, Okazaki, JP;
Hidenori Ogawa, Tokushima, JP;
Naoto Utsumi, Tokushima, JP;
Masahiro Miyake, Tokushima, JP;
Otsuka Pharmaceutical Co., Ltd., Tokyo, JP;
Abstract
This invention provides a process for preparing benzazepine compounds of the formula (1): wherein Xis a halogen atom, Rand Rare a lower alkyl group, or salts thereof as well as intermediate benzoic acid compounds in high yield and high purity on industrial scale, which are useful as an intermediate for preparing a pharmaceutically active 2,3,4,5-tetrahydro-1H-1-benzazepine compound having vasopressin antagonistic activity.