Patent number: 9718835
Abstract: The present invention is related to novel 20-sulfonylamidine derivatives of camptothecin (1), method of synthesizing the same, and use thereof as an antitumor agent, for examples an antitumor agent for treating nasopharyngeal, lung, breast or prostate cancer.
Type:
Grant
Filed:
September 26, 2014
Date of Patent:
August 1, 2017
Assignees:
CHINA MEDICAL UNIVERSITY HOSPITAL, THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL
Inventors:
Kuo-Hsiung Lee, Keduo Qian, Xiaoming Yang, Masuo Goto, Ying-Qian Liu, Yong-Long Zhao, Liu Yang, Mei-Juan Wang, Zhi-Jun Zhang, Tian-Shung Wu, Che-Ming Teng, Chih-Ya Wang, Shiow-Lin Pan, Sheng-Chu Kuo, Hsin-Yi Hung, Ling-Chu Chang, Yang-Chang Wu, Min-Tsang Hsieh, Chung Y. Hsu, Woei-Cherng Shyu, Chen-Huan Lin
Patent number: 8710064
Abstract: Provided is a compound of the formula I or a pharmaceutically acceptable salt, solvate or stereoisomer thereof: wherein Ar represents R5, R6, R7, R8, R1?, R2?, R3?, R4?, R5?, R6?, R7?, R8? independently represent H, OH, F, Cl, Br, C1 to C6 alkyl group, C1 to C6 alkoxy group, C2 to C6 alkenyl group, C2 to C6 alkenoxy group, C2 to C6 alkynyl group, C2 to C6 alkynoxy group, amine group, mono- or di-substituted amino group, cyclic C1 to C5 alkylamino group, imidazolyl group, morpholino group, piperazinyl group, optionally substituted with one or more hydroxy or halo; and X represents NH, O or S. The present invention also provides a composition comprising the compound of formula I. The compound and the composition in accordance with the present invention are effective on treating or alleviating a disease or disorder, such as malignant glioma.
Type:
Grant
Filed:
October 20, 2011
Date of Patent:
April 29, 2014
Assignee:
China Medical University
Inventors:
Mann-Jen Hour, Po-Wu Gean, Sheng-Chu Kuo, Hong-Zin Lee, Jai-Sing Yang, Li-Chen Chou, Tai-Lin Chen, Yang-Chang Wu