齐墩果酸
油酸烷
三萜类
植物化学
化学
酸水解
皂甙
立体化学
三萜皂苷
水解
三萜
有机化学
生物化学
医学
病理
替代医学
作者
Xin Liu,Jifa Zhang,Kai Guo,Airong Jia,Miansong Zhang,Yaping Shi,Changheng Liu,Linlin Xiao,Zhenliang Sun
标识
DOI:10.1080/14786419.2017.1343317
摘要
Phytochemical investigation of the 1-butanol soluble fraction of 60% ethanol extract of the seeds of Celosia cristata L. led to the identification of three new oleanane-type triterpenoid saponins. Using 1D and 2D NMR experiment methods, ESI-MS analysis and acid hydrolysis, their structures were identified as 3-O-[β-D-xylopyranosyl-(1 → 3)-β-D-glucuronopyranosyl]-2β-hydroxy-oleanolic acid-28-O-β-D-glucopyranoside (1), 3-O-[β-D-xylopyranosyl-(1 → 3)-β-D-glucuronopyranosyl]-2β, 23-dihydroxy-oleanolic acid-28-O-β-D-glucopyranoside (2) and 3-O-[β-D-glucopyranosyl-(1 → 4)-β-D-glucopyranosyl]-2-hydroxyl-medicagenic acid-28-O-β-D-glucopyranosyide (3), respectively.
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