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:
Jul. 18, 2023
Filed:
Jul. 24, 2019
Applicant:
Chia Tai Tianqing Pharmaceutical Group Co., Ltd., Jiangsu, CN;
Inventors:
Lin Liu, Jiangsu, CN;
Rui Zhao, Jiangsu, CN;
Guangming Sang, Jiangsu, CN;
Xingjian Zhou, Jiangsu, CN;
Xiaopeng Guo, Jiangsu, CN;
Aiming Zhang, Jiangsu, CN;
Gang Wu, Jiangsu, CN;
Chunguang Xia, Jiangsu, CN;
Xiquan Zhang, Jiangsu, CN;
Assignee:
CHIA TAI TIANQING PHARMACEUTICAL GROUP CO., LTD., Jiangsu, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07H 19/06 (2006.01);
U.S. Cl.
CPC ...
C07H 19/06 (2013.01);
Abstract
The present application relates to a method for preparing trifluridine, comprising reacting a compound of formula III with a compound of formula IV in a first solvent in the presence of an acid to obtain a compound of formula II, and performing further reaction to obtain trifluridine.