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: 8524740
Abstract: A compound of Formula I is disclosed as follows: or a pharmaceutically acceptable salt, prodrug, solvate, or metabolite thereof, wherein R is hydrogen, P(?O)(OH)2, P(?O)(O(C1-C18)alkylene(C6-C20)aryl)2, P(?O)(OH)(OM), P(?O)(OM)2, P?O(O2M), S(?O)(OH)2, S(?O)(O(C1-C18)alkylene(C6-C20)aryl)2, S(?O)(OH)(OM), S(?O)(OM)2; M is a monovalent or divalent metal ion, or alkylammonium ion; W is (C6-C20)aryl, (C6-C20)heteroaryl, (C1-C18)alkyl(C6-C20)aryl, (C1-C18)alkyl(C6-C20)heteroaryl, hydroxy(C6-C20)aryl, hydroxy(C6-C20)heteroaryl, (C1-C18)alkoxy(C6-C20)aryl, (C1-C18)alkoxy(C6-C20)heteroaryl, (C1-C18)alkylenedioxy(C6-C20)aryl, (C1-C18)alkylenedioxy(C6-C20)heteroaryl, halo(C6-C20)aryl, halo(C6-C20)heteroaryl, (C1-C18)alkylamino(C6-C20)aryl, (C1-C18)alkylamino(C6-C20)heteroaryl, (C1-C18)cycloalkylamino(C6-C20)aryl, or (C1-C18)cycloalkylamino(C6-C20)heteroaryl, and their OR8 substutes; R5 is (C1-C18alkoxy, hydrogen, hydroxyl, O—(C1-C18)alkyl(C6-C20)aryl, halo or OR8, or R5 and R6 are (C1-C18)dioxy provided that R7 i
Type:
Grant
Filed:
July 13, 2011
Date of Patent:
September 3, 2013
Assignee:
Tairx, Inc.
Inventors:
Sheng-Chu Kuo, Kuo-Hsiung Lee, Li-Jiau Huang, Li-Chen Chou, Tian-Shung Wu, Tzong-Der Way, Jing-Gung Chung, Jai-Sing Yang, Chi-Hung Huang, Meng-Tung Tsai