Cytotoxic Oleanane-Type Saponins from the Leaves of <i>Albizia anthelmintica</i>
<scp>Brongn.</scp>
作者:Eman Al-Sayed、Omayma A. Eldahshan、Dina M. Bahgat、Abdel Nasser B. Singab
DOI:10.1002/cbdv.201600102
日期:2016.12
2-en-28-oic acid (4) were isolated from the acetone-insoluble fraction obtained from the 80% aqueous MeOH extract of Albizia anthelmintica Brongn. leaves. Their structures were identified using different NMR experiments including: 1 H- and 13 C-NMR, HSQC, HMBC and 1 H,1 H-COSY, together with HR-ESI-MS/MS, as well as by acid hydrolysis. The four isolated saponins and the fractions of the extract exhibited
两种新的齐墩果烷型皂苷:β-d-吡喃吡喃糖基-(1→4)-6-脱氧-α-1-甘露吡喃糖基-(1→2)-1-O-(3β)-28-oxo-3- [(2-O-β-d-吡喃并吡喃糖基-β-d-吡喃葡萄糖基)氧基]油烷-12-en-28-基}-β-d-吡喃葡萄糖(1)和1-O-[(3β)-28 -oxo-3-[β-d-吡喃并吡喃糖基-(1→2)-α-l-阿拉伯吡喃并吡喃糖基-(1→6)-2-乙酰氨基-2-脱氧-β-d-吡喃吡喃糖基] oxy} olean-12 -en-28-yl]β-d-吡喃葡萄糖(2),以及两个已知的皂苷:(3β)-3-[(β-d-葡糖吡喃糖基-(1→2)-β-d-吡喃葡糖基)氧基]齐墩果酸12-en-28-油酸(3)和(3β)-3-[α-1-阿拉伯吡喃糖基-(1→6)-[β-d-吡喃葡萄糖基-(1→2)]-β-从得自Albizia anthelmintica Brongn