Platycoside N: A New Oleanane-Type Triterpenoid Saponin from the Roots of Platycodon grandiflorum
作者:Wei Li、Wei Zhang、Lan Xiang、Zi Wang、Yi-Nan Zheng、Ying-Ping Wang、Jing Zhang、Li Chen
DOI:10.3390/molecules15128702
日期:——
A new oleanane-type triterpenoid saponin, named platycoside N (1), together with six known saponins, was isolated from the roots of Platycodon grandiflorum. On the basis of acid hydrolysis, comprehensive spectroscopic data analyses and comparison with the spectral data of the known compounds, its structure was elucidated as 3-O-β-D-glucopyranosyl-(1→6)-β-D-glucopyranosyl-2β,3β,16α,23-tetrahydroxyolean-12-en-28-oic
从桔梗的根中分离出一种新的齐墩果型三萜皂苷,命名为桔梗苷 N (1),以及六种已知的皂苷。在酸水解、综合光谱数据分析和与已知化合物光谱数据比较的基础上,其结构被阐明为3-O-β-D-吡喃葡萄糖基-(1→6)-β-D-吡喃葡萄糖基-2β ,3β,16α,23-tetrahydroxyolean-12-en-28-oic acid 28-O-β-L-rhamnopyranosyl-(1→2)-α-L-arabinopyranoside。六种已知的化合物是桔梗素 D (2)、去鸦片桔梗素 D (3)、桔梗素 D3 (4)、去鸦片桔梗素 D3 (5)、桔梗苷 E (6) 和去鸦片桔梗苷 E (7)。