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.:

US 8273916 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 25, 2012

Filed:

Aug. 31, 2010
Applicants:

Tomoyuki Hasegawa, Sakai, JP;

Yasufumi Kawanaka, Sakai, JP;

Eiji Kasamatsu, Sakai, JP;

Inventors:

Tomoyuki Hasegawa, Sakai, JP;

Yasufumi Kawanaka, Sakai, JP;

Eiji Kasamatsu, Sakai, JP;

Assignee:
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.


Find Patent Forward Citations

Hasegawa, Tomoyuki. (2012). Crystal comprising (2r)-2-propyloctanoic acid and amine (U.S. Patent No. 8273916). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8273916

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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