铁刀木中一个新的色酮苷
A new chromone glycoside from Cassia siamea lam.
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摘要: 目的 研究铁刀木的化学成分。方法 利用硅胶柱色谱和薄层色谱分离铁刀木的化学成分,通过理化常数测定和波谱分析等鉴定化合物的结构。结果从铁刀木树干中分离并鉴定了5个化合物,其结构分别鉴定为:β-谷甾醇(I),蔗糖(II),正二十八醇(III),2-甲基-5-(2′-羟丙基)-7-羟基色酮-2′-O-β-D-吡喃葡糖苷(IV),3,3′,4,5′-四羟基二苯乙烯(V)。结论化合物II,III,V为首次从该植物中分得,化合物IV为新化合物。Abstract: AimTo study the chemical constituents of the stem of Cassia siamea. MethodsThe compounds were isolated by chromatography on silica gel, and identified on the basis of spectral analysis. ResultsFive compounds were isolated and identified as: β-sitosterol (I), sucrose (II), n-octacosanol (III), 2-methyl-5-(2′-hydroxypropyl)-7-hydroxy-chromone-2′-O-β-D-glucopyranoside (IV) and piceatannol (V). ConclusionCompound IV is a new compound. Compounds II,III and V were obtained from this plant for the first time.
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