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:
Sep. 25, 2012
Filed:
Aug. 31, 2010
Applicants:
Tomoyuki Hasegawa, Sakai, JP;
Yasufumi Kawanaka, Sakai, JP;
Eiji Kasamatsu, Sakai, JP;
Inventors:
Assignee:
Ono Pharmaceutical Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07B 57/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
According to the present invention, crystals comprising (2R)-2-propyloctanoic acid and an amine, which can be used as bulk drugs for safely orally administrable solid preparations with keeping the pharmacological effect, are provided. Among these crystals, the crystal with dibenzylamine per se is particularly useful as bulk drug for pharmaceuticals and can be used as an intermediate to produce (2R)-2-propyloctanoic acid having an optical purity of more than 99.5% e.e. which has not been obtained.