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. 04, 2018
Filed:
Dec. 28, 2015
Applicant:
St Pharm Co., Ltd., Gyeonggi-do, KR;
Inventors:
Geun Jho Lim, Gyeonggi-do, KR;
Sun Ki Chang, Gyeonggi-do, KR;
Chang Ho Byeon, Gyeonggi-do, KR;
Hoe Jin Yoon, Gyeonggi-do, KR;
Moon Soo Kim, Gyeonggi-do, KR;
Assignee:
ST PHARM CO., LTD., Gyeonggi-do, KR;
Primary Examiner:
Int. Cl.
CPC ...
C07D 257/02 (2006.01); C07F 5/00 (2006.01); A61K 49/10 (2006.01);
U.S. Cl.
CPC ...
C07D 257/02 (2013.01); A61K 49/106 (2013.01); C07F 5/003 (2013.01);
Abstract
The present disclosure relates to a novel method for preparing high-purity gadobutrol. The present disclosure can be easily applied to a large scale production because purity of intermediate can be managed via simple and mild process and accordingly, high-purity or ultra high-purity gadobutrol that has higher purity than previous gadobutrol can be prepared in high yield therethrough.