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:
Oct. 22, 2024
Filed:
Jan. 31, 2019
Applicant:
Shenzhen Rentai Pharmatech Ltd., Guangdong, CN;
Inventors:
Guobin Ren, Shenzhen, CN;
Weijie Ji, Shenzhen, CN;
Dongxu Yi, Shenzhen, CN;
Jiajun Huang, Shenzhen, CN;
Assignee:
SHENZHEN RENTAI PHARMATECH LTD., Guangdong, CN;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07J 7/00 (2006.01); C07J 43/00 (2006.01);
U.S. Cl.
CPC ...
C07J 7/009 (2013.01); C07B 2200/13 (2013.01); C07J 43/003 (2013.01);
Abstract
A crystal form X of 3α-hydroxy-3β-methyl-21-(4-cyano-1H-pyrazol-1'-yl)-19-nor-5β-pregnan-20-one, a preparation method of said crystal form and an application thereof in preparing a drug for treatment of central nervous system disease.