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:
Nov. 03, 2009
Filed:
Mar. 16, 2007
Applicants:
Kwee Hyun Suh, Suwon-si, KR;
Sang Min Yun, Seongnam-si, KR;
Eun Sook Kim, Seoul, KR;
Gwan Sun Lee, Seoul, KR;
Inventors:
Kwee Hyun Suh, Suwon-si, KR;
Sang Min Yun, Seongnam-si, KR;
Eun Sook Kim, Seoul, KR;
Gwan Sun Lee, Seoul, KR;
Assignee:
Hanmi Pharm. Co., Ltd., Hwaseong-gun, KR;
Primary Examiner:
Int. Cl.
CPC ...
C07D 495/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a method for preparing clopidogrel 1,5-naphthalenedisulfonate or a hydrate thereof, which comprises reacting a clopidogrel-acid addition salt with disodium 1,5-naphthalenedisulfonate or its hydrate in water, or a mixture of water and an organic solvent. High quality clopidogrel 1,5-naphthalenedisulfonate can be prepared by the inventive method by way of using non-corrosive disodium 1,5-naphthalenedisulfonate.