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:
Jan. 21, 2020
Filed:
Dec. 09, 2016
Applicant:
St Pharm Co., Ltd., Gyeonggi-do, KR;
Inventors:
Seok Hun Woo, Gyeonggi-do, KR;
YunHee Choi, Gyeonggi-do, KR;
Hong Jun Kim, Gyeonggi-do, KR;
Sun Ki Chang, Gyeonggi-do, KR;
Geun Jho Lim, Seoul, KR;
Assignee:
ST PHARM CO., LTD., , KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 401/04 (2006.01);
U.S. Cl.
CPC ...
C07D 401/04 (2013.01);
Abstract
Disclosed is a method of preparing an intermediate for an oxazolidinone derivative, which enables 5-bromo-2-(2-methyl-2H-tetrazol-5-yl)pyridine to be produced at high yield and high purity, thus exhibiting high preparation efficiency under optimal processing conditions and making it suitable for industrial mass production.