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. 18, 2010
Filed:
Apr. 27, 2007
Applicants:
Satoshi Nagato, Tokyo, JP;
Kohshi Ueno, Tsukuba, JP;
Hiroshi Ishihara, Tsukuba, JP;
Yukiko Sugaya, Tsukuba, JP;
Koichi Ito, Tsukuba, JP;
Inventors:
Satoshi Nagato, Tokyo, JP;
Kohshi Ueno, Tsukuba, JP;
Hiroshi Ishihara, Tsukuba, JP;
Yukiko Sugaya, Tsukuba, JP;
Koichi Ito, Tsukuba, JP;
Assignee:
Eisai R&D Management Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 213/64 (2006.01);
U.S. Cl.
CPC ...
Abstract
An acid addition salt of 3-(2-cyanophenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one or a hydrate thereof, wherein the acid is selected from the group consisting of benzenesulfonic acid, p-toluenesulfonic acid, hydrochloric acid, hydrobromic acid, sulfuric acid, methanesulfonic acid, fumaric acid, tartaric acid, succinic acid and benzoic acid.