Synthesis and Evaluation of a Series of Oleanolic Acid Saponins as α-Glucosidase and α-Amylase Inhibitors
作者:Tiantian Guo、Shaoping Wu、Sen Guo、Lu Bai、Qingchao Liu、Naisheng Bai
DOI:10.1002/ardp.201500179
日期:2015.9
Sixteen naturally occurring oleanolicacidsaponins and their derivatives were synthesized in an efficient and practical strategy, and their inhibitory activities against α‐glucosidase and α‐amylase were evaluated in vitro. Among all the compounds, 28‐O‐monoglucoside 8 exhibited remarkably potent inhibitory activity against α‐glucosidase with an IC50 value of 87.3 µM, which was fivefold stronger than
Facile synthesis of three bidesmosidic oleanolic acid saponins with strong inhibitory activity on pancreatic lipase
作者:Tiantian Guo、Qingchao Liu、Peng Wang、Lei Zhang、Wei Zhang、Yingxia Li
DOI:10.1016/j.carres.2009.04.024
日期:2009.7
The first synthesis of scabiosaponins E (1), F (2), and G (3), three new oleanolic acid saponins with strong inhibitory activity on pancreatic lipase isolated from the Chinese traditional medicinal herb Scabiosa tschiliensis, was efficiently achieved in an one-pot strategy under the combined use of glycosyl trichloro-acetimidates and p-toluene 1-thioglycosides (STol) as donors. (C) 2009 Published by Elsevier Ltd.