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:
Feb. 02, 2016
Filed:
Oct. 03, 2014
Applicant:
Dong-a Pharmaceutical. Co., Ltd, Seoul, KR;
Inventors:
Woo Young Kwak, Yongin-si, KR;
Heung Jae Kim, Seongnam-si, KR;
Jong Pil Min, Yongin-si, KR;
Tae Hyun Yoon, Yongin-si, KR;
Moohi Yoo, Seoul, KR;
Geun Gho Lim, Seoul, KR;
Sun Ki Chang, Gunpo-si, KR;
Assignee:
DONG-A PHARMACEUTICAL CO., LTD., Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 227/02 (2006.01); C07D 241/08 (2006.01); C07C 29/36 (2006.01); C07C 247/10 (2006.01); C07C 255/44 (2006.01); C07C 269/06 (2006.01); C07C 271/22 (2006.01); C07D 203/08 (2006.01); C07D 203/18 (2006.01); C07C 29/10 (2006.01); C07C 241/00 (2006.01); C07C 253/00 (2006.01); C07C 255/42 (2006.01); C07D 203/10 (2006.01);
U.S. Cl.
CPC ...
C07D 241/08 (2013.01); C07C 29/106 (2013.01); C07C 29/36 (2013.01); C07C 227/02 (2013.01); C07C 241/00 (2013.01); C07C 247/10 (2013.01); C07C 253/00 (2013.01); C07C 255/42 (2013.01); C07C 255/44 (2013.01); C07C 269/06 (2013.01); C07C 271/22 (2013.01); C07D 203/08 (2013.01); C07D 203/10 (2013.01); C07D 203/18 (2013.01); Y02P 20/55 (2015.11);
Abstract
The present invention relates to an improved method for preparing dipeptidyl peptidase-IV inhibitor intermediates. The present invention is able to reduce preparation costs by using low cost reagents on reaction and is able to be used in mass production by improving yield.