The convergent synthesis of novel cytotoxic certonardosterol D2 from diosgenin
摘要:
Certonardosterol D-2, a polyhydroxysterol isolated from starfish Certonardoa semiregularis with exceptionally potent antitumor activity, was stereoselectively synthesized from natural rich diosgenin via the protocol of Julia olefination and Evans aldol reaction. (c) 2007 Elsevier Ltd. All rights reserved.
Solanolide, a steroid lactone sapogenin from Solanum hispidum
作者:Ajit K. Chakravarty、Binayak Das、Satyesh C. Pakrashi
DOI:10.1016/0031-9422(82)83048-3
日期:1982.1
Abstract Solanolide, a new C 22 steroid lactone sapogenin isolated from the leaves of Solanumhispidum Pers., has been characterized as 3β, 6α, 16β-trihydroxy-5α-pregnane-20 S -carboxylic acid (22, 16)-lactone from 1 H and 13 C NMR analyses and correlation with neochlorogenin.
摘要 Solanolide 是一种从 Solanum hispidum Pers. 的叶子中分离出来的新的 C 22 类固醇内酯皂苷元,已被表征为 3β, 6α, 16β-trihydroxy-5α-pregnane-20 S-羧酸 (22, 16)-lactone H 和 13 C NMR 分析以及与新绿原素的相关性。
Saponins and Sapogenins. VII. The Structure of the Side Chain of Chlorogenin