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. 27, 2022
Filed:
Mar. 05, 2019
Applicant:
Guangdong Raynovent Biotech Co., Ltd., Guangdong, CN;
Inventors:
Jian Xiong, Shanghai, CN;
Xiaoxin Chen, Shanghai, CN;
Jingjing Wang, Shanghai, CN;
Zhuowei Liu, Shanghai, CN;
Kevin X Chen, Shanghai, CN;
Chengwu Liu, Shanghai, CN;
Cheng Xie, Shanghai, CN;
Chaofeng Long, Shanghai, CN;
Peng Li, Shanghai, CN;
Jian Li, Shanghai, CN;
Shuhui Chen, Shanghai, CN;
Assignee:
GUANGDONG RAYNOVENT BIOTECH CO., LTD., Guangdong, CN;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 471/04 (2006.01); A61K 31/506 (2006.01); A61P 31/16 (2006.01);
U.S. Cl.
CPC ...
C07D 471/04 (2013.01); A61K 31/506 (2013.01); A61P 31/16 (2018.01); C07B 2200/13 (2013.01);
Abstract
Disclosed are a crystal form and a salt form of a pyrazolopridine compound, and a preparation method therefor. Further included is the use of the crystal form in preparing anti-influenza virus drugs.