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. 10, 2006
Filed:
Sep. 23, 2004
Kenichi Sakai, Kitaibaraki, JP;
Rumiko Sakurai, Kitaibaraki, JP;
Atsushi Yuzawa, Kitaibaraki, JP;
Kaoru Hatahira, Kitaibaraki, JP;
Kenichi Sakai, Kitaibaraki, JP;
Rumiko Sakurai, Kitaibaraki, JP;
Atsushi Yuzawa, Kitaibaraki, JP;
Kaoru Hatahira, Kitaibaraki, JP;
Yamakawa Chemical Industry Co., Ltd., Tokyo, JP;
Abstract
Disclosed is a process for commercial preparation of 3-(methylamino)-1-(2-thienyl)propan-1-ol (hereinafter abbreviated as 'MMAA') of the formula below: The process is carried out by the diastereomeric salt formation method using optically active mandelic acid or its derivatives, or an optically active tartaric acid derivative as the resolving agent. The product compound, diastereomeric satls, is useful as the intermediate for producing pharmaceuticals, such as duloxetine.