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:
Apr. 21, 2015
Filed:
Dec. 22, 2011
Applicants:
Ying Shi, Shijiazhuang, CN;
Kun LI, Shijiazhuang, CN;
Xuebin Zhao, Shijiazhuang, CN;
Zan Xie, Shijiazhuang, CN;
Yuxiu MA, Shijiazhuang, JP;
Jian LV, Shijiazhuang, CN;
Ming Jia, Shijiazhuang, CN;
Inventors:
Assignee:
CSPC Zhongqi Pharmaceutical Technology (Shijiazhuang) Co. Ltd., Shijiazhuang, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 477/20 (2006.01); A61K 31/407 (2006.01); A61K 9/00 (2006.01); A61K 9/19 (2006.01); A61K 47/02 (2006.01);
U.S. Cl.
CPC ...
C07D 477/20 (2013.01); A61K 9/0019 (2013.01); A61K 9/19 (2013.01); A61K 47/02 (2013.01);
Abstract
Provided is a crystalline form E of ertapenem sodium. Further provided is a method for preparing a crystalline form E of ertapenem sodium, characterized by using an aqueous ertapenem sodium solution at a low concentration as a raw material. The crystalline form E can be easily filtered and dried, the properties in the drying process are stable, and the purity of the crystal is high and can be up to 98.5% or higher.