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:
Oct. 26, 2010
Filed:
Apr. 27, 2005
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 ...
A61K 31/205 (2006.01); C07C 229/00 (2006.01); C07B 57/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Crystals comprising (2R)-2-propyloctoic acid and an amine which retain the pharmacological effect of (2R)-2-propyloctoic acid and can be safely used as a medicinal raw drug for peroral solid preparations. Of these crystals, the crystals especially with dibenzylamine are advantageous because not only the crystals themselves are useful as a medicinal raw drug but also use of the crystals as an intermediate can yield (2R)-2-propyloctoic acid having an optical purity exceeding 99.5% e.e., which has not been obtained hitherto.