Synthesis and Biological Evaluation of Asiatic Acid Derivatives as Inhibitors of Glycogen Phosphorylases
作者:Liying Zhang、Jun Chen、Yanchun Gong、Jun Liu、Luyong Zhang、Weiyi Hua、Hongbin Sun
DOI:10.1002/cbdv.200800092
日期:2009.6
Twenty-four asiaticacidderivatives have been synthesized and biologicallyevaluated as inhibitors of glycogenphosphorylase (GP). Within this series of compounds, asiaticacid benzyl ester (23; IC(50)=3.8 microM) exhibited more potent activity than its parent compound 1 (IC(50)=17 microM). SAR Analysis showed that asiaticacid (1) possessing a 2alpha-OH function exhibited more potent GP inhibitory
Synthesis, Anti-Tumor and Anti-Angiogenic Activity Evaluations of Asiatic Acid Amino Acid Derivatives
作者:Yue Jing、Gang Wang、Ying Ge、Minjie Xu、Zhunan Gong
DOI:10.3390/molecules20047309
日期:——
Fifteen semi-synthetic derivatives of asiatic acid (AA) have been synthesized and evaluated for their biological activities. The successful modification of these compounds at the C-2, C-3, C-23 and C-28 positions was confirmed using NMR, MS and IR spectra. Further, their anti-tumor effects were evaluated in vitro using different cancer cell lines (HeLa, HepG2, B16F10, SGC7901, A549, MCF7 and PC3), while their anti-angiogenic activities were evaluated in vivo using a larval zebrafish model. Among the derivatives, compounds 4–10 showed more potent cytotoxic and anti-angiogenic effects than AA, while compounds 11–17 had significantly less effects. The new derivative 10 was also included in finished formulations to evaluate its stability using HPLC due to its potential topical use. The derivative 10 had markedly better anti-tumor activities than both AA and other derivatives, with similar stability as its parent compound AA.