1. 广州医科大学 a. 药学院(广东 广州 511436); b. 附属第三医院(广东 广州 510150); c. 实验医学研究中心(广东 广州 511436)
Synthesis and Antitumor Activities of Novel Aryl-substituted Gambogic Acid Derivatives
ZHANG Zhi-jia1a,1b, LI Jin-hai1a, CHEN Mei-jun1a, HUANG Yan1a, ZHAO Lu-ning1c
a. School of Pharmaceutical Science(Guangzhou 511436); b. The Third Affiliated Hospital(Guangzhou 510150); c. Experimental Medical Research Center(Guangzhou 511436), 1. Guangzhou Medical University, Guangzhou, China
Abstract:Aryloxy(heterocyclic)-alcohol(2a~2k) were prepared by Williamson ether reaction of substituted phenols(or hydroxypyridines) with bromo-alcohol, using K2CO3 as alkali. Gambogic acid derivatives(3a~3k) were synthesized by Mitsunobu reaction of 2a~2m with gambogic acid, respectively. Arycarbonylamibo alcohols(5a~5h) were prepared by coupling reaction of aromatic acid with 3-amino-1-propanol, using DDC/HOSu as coupling agent. Gambogic acid derivatives(6a~6h) were synthesized by Mitsunobu reaction of 5a~5h with gambogic acid, respectively. 2, 3, 5 and 6 were new compounds and the structures were characterized by 1H NMR, ESI-MS and HR-MS. The in vitro antitumor activities of 3 and 6 against human lung cancer cells(A549), human liver cancer cells(HepG-2) and human breast cancer cells(SK-BR-3) were investigated by MTT method. The results showed that some of the compounds exhibited better antitumor activities than gambogic acid.