从麦冬须根中分离得到的两种新呋甾烷醇皂苷。
Two new furostanol saponins from the fibrous root of Ophiopogon japonicus.
作者信息
Kang Zhi-Yun, Zhang Meng-Jia, Wang Jian-Xin, Liu Jian-Xun, Duan Chang-Ling, Yu De-Quan
出版信息
J Asian Nat Prod Res. 2013;15(12):1230-6. doi: 10.1080/10286020.2013.861822.
Two new furostanol saponins ophiopogonins J (1) and K (2) were isolated from the fibrous roots of Ophiopogon japonicus. The structures of 1 and 2 were established as (25R)-26-O-[(β-D-glucopyranosyl-(1 --> 2)-β-D-glucopyranosyl)]-14-hydroxy-furost-5,20(22)-diene 3-O-[α-L-rhamnopyranosyl-(1 --> 2)]-β-D-glucopyranoside (1), and (25R)-26-O-[(β-D-glucopyranosyl-(1 --> 2)-β-D-glucopyranosyl)]-furost-5,20(22)-diene 3-O-α-L-rhamnopyranosyl-(1 --> 2)[(β-D-xylopyranosyl-(1 --> 4)-β-D-glucopyranoside)] (2) on the basis of spectroscopic means including HRESIMS, 1D, and 2D NMR experiments.
从麦冬的须根中分离得到了两种新的呋甾烷醇皂苷麦冬皂苷J（1）和K（2）。通过高分辨电喷雾电离质谱（HRESIMS）、一维（1D）和二维（2D）核磁共振实验等光谱手段，确定化合物1和2的结构分别为(25R)-26-O-[(β-D-吡喃葡萄糖基-(1→2)-β-D-吡喃葡萄糖基)]-14-羟基-呋甾-5,20(22)-二烯3-O-[α-L-吡喃鼠李糖基-(1→2)]-β-D-吡喃葡萄糖苷（1）和(25R)-26-O-[(β-D-吡喃葡萄糖基-(1→2)-β-D-吡喃葡萄糖基)]-呋甾-5,20(22)-二烯3-O-α-L-吡喃鼠李糖基-(1→2)[(β-D-吡喃木糖基-(1→4)-β-D-吡喃葡萄糖苷)]（2）。
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