豆甾醇
差向异构体
化学
芒柄花素
立体化学
葡萄糖苷
圆二色性
麦角甾醇
生物杀虫素A
色谱法
生物
生物化学
染料木素
内分泌学
病理
替代医学
医学
大豆黄酮
作者
Georges Bellier Tabekoueng,Carine Mvot Akak,Moses K. Langat,Anatole Guy Blaise Azébazé,Alain François Kamdem Waffo,Dulcie A. Mulholland,Juliette Cathérine Vardamides
标识
DOI:10.1016/j.phytol.2019.01.026
摘要
Fourteen compounds were isolated from the roots, leaves and twigs of Penianthus longifolius Miers (Menispermaceae), including two previously unreported neo-clerodane diterpenoids, penianthin (1), its C-8 epimer (2). In addition, the previously reported O-methylmoschatoline (3), taraxerol (4), taraxerone (5), rubrosterone, (6), panuosterone (7), 22-epi-20-hydroxyecdysone (8), ergosterol peroxide (9), stigmast-5-ene-3,7-dione (10), stigmasterol (11), β-sitosterol (12), stigmasterol glucoside (13) and β-sitosterol glucoside (14) were isolated. The structures of the compounds were determined by means of NMR spectroscopic and mass spectrometric analysis. The absolute configurations of 1 and 2 were determined by circular dichroism analysis. Compounds 1 and 2 were screened against the NCI60 cancer cell panel but showed no significant activity at 10 μM.
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