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. 05, 2013
Filed:
Feb. 12, 2009
Applicants:
Chun-ho Lee, Seoul, KR;
Ja-heouk Khoo, Anseong-si, KR;
Kyoung-chan Kwon, Osan-si, KR;
Hyun Ju, Yongin-si, KR;
Inventors:
Chun-Ho Lee, Seoul, KR;
Ja-Heouk Khoo, Anseong-si, KR;
Kyoung-Chan Kwon, Osan-si, KR;
Hyun Ju, Yongin-si, KR;
Assignee:
Yuhan Corporation, Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 31/445 (2006.01); C07D 401/04 (2006.01); C07D 413/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a process for preparing 2-methyl-2'-phenylpropionic acid derivatives showing antihistamine activity in more simplified way, intermediate compounds and their preparation processes used therefor. According to the present invention, pharmaceutically useful 2-methyl-2′-phenylpropionic acid derivatives can be prepared with high yield and purity on industrial scale.