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:
Sep. 08, 2015
Filed:
Mar. 11, 2010
Applicants:
Changyoung OH, Yongin-si, KR;
Kee Young Lee, Seoul, KR;
Yong Hyun Kim, Suwon-si, KR;
Jae Eun Joo, Suwon-si, KR;
Inventors:
Changyoung Oh, Yongin-si, KR;
Kee Young Lee, Seoul, KR;
Yong Hyun Kim, Suwon-si, KR;
Jae Eun Joo, Suwon-si, KR;
Assignee:
YONSUNG FINE CHEMICAL CO., LTD., Hwaseong-Si, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 67/00 (2006.01); C07C 233/11 (2006.01); C07C 405/00 (2006.01); C07C 69/734 (2006.01);
U.S. Cl.
CPC ...
C07C 233/11 (2013.01); C07C 69/734 (2013.01); C07C 405/00 (2013.01); C07C 2101/08 (2013.01);
Abstract
The present invention relates to a process for preparing a prostaglandin derivative and an intermediate therefor. In accordance with the present invention, the prostaglandin F (PGF) derivative can be efficiently prepared with high purity by removing the protecting group of a protected prostaglandin E (PGE) derivative obtained from conjugate addition and then stereoselectively reducing the ketone group on the cyclopentanone ring of the PGE derivative.