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:
Dec. 16, 2014
Filed:
Nov. 04, 2011
Applicants:
Yian Shi, Beijing, CN;
Xianyou Peng, Beijing, CN;
Peijun LI, Beijing, CN;
Inventors:
Assignee:
Institute of Chemistry Chinese Academy of Sciences, Beijing, CN;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 207/273 (2006.01);
U.S. Cl.
CPC ...
C07D 207/273 (2013.01);
Abstract
Disclosed in the present invention is a method for preparing a (−)-clausenamide compound of formula (I), comprising: firstly, catalyzing the asymmetrical epoxidation of trans-cinnamate using a chiral ketone derived from fructose or a hydrate thereof as a catalyst, and then subjecting the product to amidation, oxidation, cyclization and reduction successively to finally obtain the optically pure (−)-clausenamide compound of formula (I).
Shi, Yian. (2014). Method for preparing optically pure (−)-clausenamide compound (U.S. Patent No. 8912345). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8912345
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile