延龄草化学成分的分离与鉴定

目的研究延龄草(Trillium tschonoskii Maxim.)根及根茎的化学成分。方法利用硅胶柱色谱、凝胶柱色谱、ODS(反相C18键合硅胶)柱色谱、高效液相色谱等色谱技术对延龄草的化学成分进行分离和纯化,通过理化性质和NMR等波谱数据分析确定化合物的结构。结果从延龄草根及根茎70%(φ)乙醇提取物中分离得到11个已知成分,分别确定为重楼皂苷Ⅵ(chonglouosideⅥ,1)、偏诺皂苷元-3β-O-α-L-吡喃鼠李糖基-(1→4)-[O-α-L-吡喃鼠李糖基-(1→2)]-O-β-D-吡喃葡萄糖苷(penogenin-3β-O-α-L-rhamnopyranosyl-(1→4)-[O-α-L-rhamnopyranosyl-(1→2)]-O-β-D-glu-copyranoside,2)、重楼皂苷Ⅶ(chonglouosideⅦ,3)、偏诺皂苷元-3β-O-β-D-吡喃葡萄糖基-(1→6)-[O-α-L-吡喃鼠李糖基-(1→2)]-O-β-D-吡喃葡萄糖苷(trikamsteroside B,4)、(25S)-27-羟基偏诺皂苷元-3β-O-α-L-吡喃鼠李糖基-(1→2)-O-β-D-吡喃葡萄糖苷((25S)-27-hydroxypenogenin-3β-O-α-L-rhamnopyranosyl-(1→2)-O-β-D-glucopyranoside,5)、(25S)-27-羟基偏诺皂苷元-3β-O-α-L-吡喃鼠李糖基-(1→4)-[O-α-L-吡喃鼠李糖基-(1→2)]-O-β-D-吡喃葡萄糖苷((25S)-27-hydroxypenogenin-3β-O-α-L-rhamnopyranosyl-(1→4)-[O-α-L-rhamnopyranosyl-(1→2)]-O-β-D-glucopyranoside,6)、(25S)-27-羟基偏诺皂苷元-3β-O-α-L-吡喃鼠李糖基-(1→4)-O-α-L-吡喃鼠李糖基-(1→4)-[O-α-L-吡喃鼠李糖基-(1→2)]-O-β-D-吡喃葡萄糖苷(polyphyllosideⅢ,7)、(23S,24S,25S)-螺甾-5-烯-1β,3β,21,23,24-五羟基-1β-O-β-D-呋喃芹糖基-(1→3)-O-α-L-吡喃鼠李糖基-(1→2)-[O-β-D-吡喃木糖基-(1→3)]-O-α-L-吡喃阿拉伯糖苷(trikamsteroside E,8)、3β-O-α-L-rhamnopyranosyl-(1→2)-O-β-D-glucopyranosylhomo-aro-cholest-5-ene-26-O-β-D-glucopyranoside(parispseudoside B,9)、3β-O-α-L-rhamnopyranosyl-(1→4)-[O-α-L-rhamnopyranosyl-(1→2)]-O-β-D-glucopyranosylhomo-aro-cholest-5-ene-26-O-β-D-glucopyranoside(aethioside A,10)、3β-O-α-L-rhamnopyranosyl-(1→4)-O-α-L-rham-nopyranosyl-(1→4)-[O-α-L-rhamnopyranosyl-(1→2)]-O-β-D-glucopyranosylhomo-aro-cholest-5-ene-26-O-β-D-glucopyranoside(parispseudoside A,11)。结论化合物9-11为首次从百合科植物中分离得到,7为首次从延龄草属植物中分离得到,4-6、8为首次从延龄草中分离得到。

Isolation and identification of chemical constituents from root and rhizoma of Trillium tschonoskii

Objective To study the chemical constituents of root and rhizome of Trillium tschonoskii Maxim. Methods The compounds from the 70%( φ) ethanol extracts were isolated by silica gel column, Sephadex LH-20 column chromatography, ODS column chromatography and HPLC techniques. And these compounds were identified by the physico-chemical properties and spectroscopic methods. Results Eleven compounds were isolated from the 70%( φ) ethanol extract of T. tschonoskii Maxim, whose structures were determined as chonglouoside Ⅵ(1), penogenin-3β-O-α-L-rhamnopyranosyl-(1→4)-[O-α-L-rhamnopyranosyl-(1→2)]-O-β-D-glucopyranoside(2), chonglouoside Ⅶ(3), trikamsteroside B(4), (25S)-27-hydroxypenogenin-3β-O-α-L-rhamnopyranosyl-(1→2)-O-β-D-glucopyranoside(5), (25S)-27-hydroxypenogenin-3-O-α-L-rhamnopyranosyl-(1→4)-[O-α-L-rhamnopyranosyl-(1→2)]-O-β-D-glucopyranoside(6), polyphylloside Ⅲ(7), trikamsteroside E(8), parispseudoside B(9), Aethioside A(10), parispseudoside A (11). Conclusions Compounds 9-11 are isolated from Liliaceae for the first time, 7 is isolated from Trillium for the first time, 4-6 and 8 are isolated from T. tschonoskii Maxim. for the first time.