Facile synthesis of three bidesmosidic oleanolic acid saponins with strong inhibitory activity on pancreatic lipase
摘要:
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.
Total Synthesis of Linckosides A and B, the Representative Starfish Polyhydroxysteroid Glycosides with Neuritogenic Activities
作者:Dapeng Zhu、Biao Yu
DOI:10.1021/jacs.5b11276
日期:2015.12.9
Linckosides A and B, two starfish metabolites with promising neuritogenicactivities, are synthesized in a longest linear sequence of 32 steps and 0.5% overall yield; this represents the first synthesis of members of the polyhydroxysteroidglycoside family, which occur widely in starfishes.
Linckosides A 和 B 是两种海星代谢物,具有良好的神经元活性,以最长的 32 步线性序列合成,总产率为 0.5%;这代表了广泛存在于海星中的多羟基类固醇糖苷家族成员的首次合成。
Synthesis of Sea Cucumber Saponins with Antitumor Activities
biological activities. Here, we report the synthesis of two representative congeners, namely, pervicoside B and C, starting from lanosterol with the longest linear sequence of both 34 steps and in 0.3% overall yields. The flexible synthetic approach has enabled us to expeditiously prepare 16 analogues for preliminary studies on the key structural features influencing their antiproliferativeactivities against