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:
Dec. 08, 1998
Filed:
Jul. 25, 1997
Applicant:
Inventors:
Khashayar Karimian, Mississauga, CA;
Mehrnoush Motamedi, San Diego, CA (US);
Salvatore Zinghini, Downsview, CA;
Assignee:
Apotex, Inc., Weston, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07B / ; C07D / ;
U.S. Cl.
CPC ...
540222 ;
Abstract
A process for preparing pure amorphous cefuroxime axetil comprising the steps of dissolving crystalline cefuroxime axetil in a highly polar organic solvent and adding the resulting solution to water, or alternatively, dissolving crystalline cefuroxime axetil in a highly polar solvent and adding small quantities of water to the organic solution and adding the resulting organic-aqueous solution to water.