五爪金龙化学成分研究

Study of Chemical Constituents from Ipomoea Cairica

目的为阐明五爪金龙(Ipomoea cairica(Linn.)Sweet)的化学成分。方法采用多种柱层析方法进行分离纯化,通过理化性质和波谱解析进行化学结构鉴定。结果本实验从氯仿部位分离得到3个化合物,经光谱方法和物理方法鉴定分别为(S)-药喇叭脂酸-11-O-α-L-吡喃鼠李糖基-(1→3)-O-[3-O-桂皮酸基,4-O-[(2(S)-甲基丁酸基)]-α-L-吡喃鼠李糖基-(1→4)-O-(2-O-正十一烷酸基)-α-L-吡喃鼠李糖基-(1→4)-α-L-吡喃鼠李糖基-(1→2)-O-α-D-葡萄糖,1,3′′-内酯(1),牛蒡子苷(2),牛蒡子元(3)。结论化合物1-3为首次从该植物中分离得到。

Objective To investigate the chemical constituents of Ipomoea cairica（Linn.） Sweet. Methods Several chromatographic methods were applied to isolate and purify compounds. Their structures were identified on the basis of physicochemical properties and spectroscopic data. Results Three compounds were isolated and identified as（11S）-jalapinolic acid-11-O-α-L-rhamnopyranosyl-（1→3）-O-[3-O-（trans-cinnamoyl）-4-O-（2S-methylbutanoyl）-α-L-rhamnopyranosyl-（1→4）]-O-（2-O-n-decanoyl）-α-L-rhamnopyranosyl-（1→4）-α-L-rhamnopyranosyl-（1→2）-O-β-D-glucopyranoside-（1,3′′-lactone）（1）, arctiin（2）, arctigenin（3）.Conclusion Compounds 1-3 were isolated from this genus for the first time.