作者:Saleem Jan、Ahmed Abbaskhan、Syed Musharraf、Samina Sattar、Saud Resayes、Zeid Al-Othman、Abdullah Al-Majid、M. Choudhary
DOI:10.1055/s-0030-1271196
日期:2011.11
Three new cycloartane triterpenoids have been isolated from Astragalus bicuspis Fisch. Their structures were elucidated as 23(R),24(S),25(R),26(S)-16β/23,23/26,24/25-triepoxy-26-hydroxy-9,19-cyclolanosta-3,6-dione (1), 6α,23,24,25-tetraol-16β-acetoxy-23(R),24(R)-9,19-cyclanosta-3-one (2), and 6α,23,24,25-tetraol-16β-acetoxy-23(R),24(R)-9,19-cyclolanosta-3β-O-xyloside (3), based on their spectroscopic analysis. All cycloartane tritepenoids exhibited weak cytotoxicities against 3T3 fibroblast cells as compared to the standard drug cycloheximide. Compounds 3 and 4 were also tested for their antileishmanial potential, and a weak activity was observed against promastigotes of Leishmania major.
从黄芪(Astragalus bicuspis Fisch)中分离出三种新的环木菠萝烷三萜类化合物。它们的结构被阐明为 23(R),24(S),25(R),26(S)-16δ/23,23/26,24/25-三环氧-26-羟基-9,19-环羊毛甾-3,6-二酮 (1),6δ±,23,24,25-四醇-16δ-乙酰氧基-23(R)、24(R)-9,19-环羊毛甾-3-酮 (2) 和 6δ±,23,24,25-四醇-16δ-乙酰氧基-23(R),24(R)-9,19-环羊毛甾-3δ-O-木糖苷 (3)。与标准药物环己亚胺相比,所有环庚烷三萜类化合物对 3T3 成纤维细胞都表现出较弱的细胞毒性。还测试了化合物 3 和 4 的抗利什曼病潜力,观察到它们对大利什曼原虫有微弱的活性。