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:
Aug. 09, 2022
Filed:
Oct. 17, 2018
Applicant:
Jiangsu Hengrui Medicine Co., Ltd., Jiangsu, CN;
Inventors:
Guobing Feng, Jiangsu, CN;
Yongxing Cao, Jiangsu, CN;
Peng Zhang, Jiangsu, CN;
Zhenjun Qiu, Jiangsu, CN;
Long Zhang, Jiangsu, CN;
Assignee:
Jiangsu Hengrui Medicine Co., Ltd., Jiangsu, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 401/14 (2006.01); C07D 401/12 (2006.01);
U.S. Cl.
CPC ...
C07D 401/14 (2013.01); C07D 401/12 (2013.01);
Abstract
Provided is a preparation method for a tyrosine kinase inhibitor and an intermediate thereof. Specifically, a preparation method for a cyanoquinoline compound is provided. The method has a high yield, good product purity, and mild reaction conditions.