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:
May. 03, 2016
Filed:
Nov. 21, 2013
Applicant:
Daewoong Pharmaceutical Co., Ltd., Seongnam-si, Gyeonggi-do, KR;
Inventors:
Soo-Jin Choi, Yongin-si, KR;
Byung-Goo Lee, Suwon-si, KR;
Hee-Kyoon Yoon, Cheongju-si, KR;
Sung-Woo Park, Gwangju-si, KR;
Sun-Ah Jun, Yongin-si, KR;
Kyung-Ho Lee, Osan-si, KR;
Byung-Jo Lim, Yongin-si, KR;
Assignee:
DAEWOONG PHARMACEUTICAL CO., LTD., Seongnam-si, Gyeonggi-do, KR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 477/06 (2006.01); C07D 477/20 (2006.01); C07D 487/04 (2006.01);
U.S. Cl.
CPC ...
C07D 477/06 (2013.01); C07D 477/20 (2013.01); C07D 487/04 (2013.01);
Abstract
Provided is a process for the preparation of meropenem trihydrate in high purity and high yield, including using a dry methanol solvate of meropenem, which can remarkably reduce the amount of residual solvents in the resulting product, thereby obtain meropenem trihydrate in high purity.