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:
Mar. 19, 2013
Filed:
Nov. 07, 2008
Method for resolution of a mixture of pinocembrin optical isomers, especially a pinocembrin racemate
Applicants:
Song Wu, Beijing, CN;
Guanhua Du, Beijing, CN;
Yue Yuan, Beijing, CN;
Qingyun Yang, Beijing, CN;
Mei Gao, Beijing, CN;
Yan Qi, Beijing, CN;
Yuanfeng Tong, Beijing, CN;
Yuehua Wang, Beijing, CN;
Inventors:
Song Wu, Beijing, CN;
Guanhua Du, Beijing, CN;
Yue Yuan, Beijing, CN;
Qingyun Yang, Beijing, CN;
Mei Gao, Beijing, CN;
Yan Qi, Beijing, CN;
Yuanfeng Tong, Beijing, CN;
Yuehua Wang, Beijing, CN;
Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 311/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a method for resolution of a mixture of pinocembrin optical isomers, in particular a pinocembrin racemate, using a chiral primary amine or a chiral sulfinamide. The present invention also relates to a (R)-(+)-pinocembrin obtained by the method.