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:
Jun. 12, 2012
Filed:
May. 05, 2009
Applicants:
Yerramilli V. S. N. Murthy, Apex, NC (US);
Edward Obare, Portland, ME (US);
Hengguang LI, Morrisville, NC (US);
Inventors:
Yerramilli V. S. N. Murthy, Apex, NC (US);
Edward Obare, Portland, ME (US);
Hengguang Li, Morrisville, NC (US);
Assignee:
IDEXX Laboratories, Inc., Westbrook, ME (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 501/54 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention is directed to an improved process for preparing cefsulodin sodium. The process involves: (i) dissolving cefsulodin in a solvent comprising an organic solvent to provide a solution of cefsulodin, (ii) adding about 1 equivalent of a sodium salt of a base to the solution of cefsulodin to provide a solution of cefsulodin sodium, and (iii) separating the cefsulodin sodium from the solution of cefsulodin sodium.