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:
Nov. 19, 2019
Filed:
Dec. 16, 2016
Applicant:
Chia Tai Tianqing Pharmaceutical Group Co., Ltd., Lianyungang, Jiangsu, CN;
Inventors:
Tao Yu, Shanghai, CN;
Ning Li, Shanghai, CN;
Lingwei Kong, Shanghai, CN;
Peipei Jiang, Shanghai, CN;
Yong Wang, Shanghai, CN;
Zhemin Rong, Shanghai, CN;
Changjun Wang, Shanghai, CN;
Feng Guo, Shanghai, CN;
Zongbin Li, Shanghai, CN;
Zheng Wang, Shanghai, CN;
Jiahu Wu, Shanghai, CN;
Chengde Wu, Shanghai, CN;
Assignee:
Chia Tai Tianqing Pharmaceutical Group Co., Ltd., Lianyungang, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 471/04 (2006.01); A61K 31/519 (2006.01); A61P 35/00 (2006.01);
U.S. Cl.
CPC ...
C07D 471/04 (2013.01); A61K 31/519 (2013.01); A61P 35/00 (2018.01); C07B 2200/13 (2013.01);
Abstract
Disclosed in the present invention are a crystalline Form of pyrido[1,2-a]pyrimidone analog, a preparation method therefor and an intermediate thereof.