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.:

US 9522934 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 20, 2016

Filed:

Feb. 20, 2013
Applicants:

Shanghai Cdymax Pharmaceuticals Co., Ltd., Shanghai, CN;

Jiangsu Cdymax Pharmaceuticals Co., Ltd., Qidong, Jiangsu, CN;

Inventors:

Xiaoxia An, Shanghai, CN;

Chengjun Huang, Shanghai, CN;

Fengwang Mao, Shanghai, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 31/4406 (2006.01); C07J 43/00 (2006.01); C07C 53/10 (2006.01);
U.S. Cl.
CPC ...
C07J 43/003 (2013.01); C07C 53/10 (2013.01);
Abstract

Provided are acetaic abiraterone trifluoroacetate, a preparation method and an application of same. The acetaic abiraterone trifluoroacetate is obtained through a salt-forming reaction between acetaic Abiraterone and trifluoroacetic acid. The acetaic abiraterone trifluoroacetate undergoes self-purification through recrystallization, and dissociation and recrystallization are performed on the purified abiraterone acetate trifluoroacetate, so that the obtained acetaic abiraterone has a high purity, a high yield and stable quality, and is capable of meeting the requirement for mass production of acetaic abiraterone.


Find Patent Forward Citations

An, Xiaoxia. (2016). Acetatic abiraterone trifluoroacetate and preparation method and application of same (U.S. Patent No. 9522934). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9522934

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…