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:
Dec. 04, 2007
Filed:
Aug. 27, 2003
Applicants:
Hiroshi Fukushima, Tokyo, JP;
Akira Hiratate, Tokyo, JP;
Masato Takahashi, Tokyo, JP;
Kazuya Kameo, Tokyo, JP;
Inventors:
Hiroshi Fukushima, Tokyo, JP;
Akira Hiratate, Tokyo, JP;
Masato Takahashi, Tokyo, JP;
Kazuya Kameo, Tokyo, JP;
Assignee:
Taisho Pharmaceutical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 207/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A benzenesulfonate salt of (2S,4S)-2-cyano-4-fluoro-1-[(2-hydroxy-1,1-dimethyl)ethylamino]acetylpyrrolidine that has an excellent DPPIV inhibition activity as well as physical properties (e.g., stability) required for pharmaceutical preparations. The present invention allows easy obtaining of the compound in high-purity uniform crystal form with excellent solid-state stability.