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:
Apr. 14, 2020
Filed:
Oct. 23, 2018
Applicants:
Han LI, Xi'an, CN;
Yuzhi Liu, Xi'an, CN;
Nan Qin, Tianjin, CN;
Juan Xia, Zhanjiang, CN;
Shaomeng Pei, Xi'an, CN;
Chengyuan Liang, Xi'an, CN;
Lei Tian, Xi'an, CN;
Inventors:
Han Li, Xi'an, CN;
Yuzhi Liu, Xi'an, CN;
Nan Qin, Tianjin, CN;
Juan Xia, Zhanjiang, CN;
Shaomeng Pei, Xi'an, CN;
Chengyuan Liang, Xi'an, CN;
Lei Tian, Xi'an, CN;
Assignee:
SHAANXI UNIVERSITY OF SCIENCE AND TECHNOLOGY, Xi'an, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 498/10 (2006.01); A61P 11/06 (2006.01); A61P 29/00 (2006.01); C07D 495/04 (2006.01);
U.S. Cl.
CPC ...
C07D 498/10 (2013.01); A61P 11/06 (2018.01); A61P 29/00 (2018.01); C07D 495/04 (2013.01);
Abstract
A compound of chemical formula I: or formula II: or a pharmaceutical acceptable salt thereof is disclosed. Ris OH or OAc; X is C or N; and Ris H, alkyl, alkoxy, benzyloxy, haloalkyl, OH, CN, NO, or halogen, provided that when X is N, Ris nil.