竹根化学成分的研究(Ⅱ)

Studies on chemical constituents of bamboo root(Ⅱ)

目的研究竹根的化学成分。方法采用色谱方法分离化学成分,根据波谱数据及理化常数分析进行结构鉴定。结果分离鉴定了9个化合物,分别为3-(p-羟基苯)-(2,3)环氧-1-丙酸(Ⅰ)、2,3-二羟基-1-(4-羟基-3,5-二甲氧基苯基)-1-丙酮(Ⅱ)、(+)-鹅掌揪树脂醇B(Ⅲ)、原儿茶醛(Ⅳ)、原儿茶酸(Ⅴ)、荭草苷(Ⅵ)、牡荆苷(Ⅶ)、异荭草苷(Ⅷ)、异牡荆苷(Ⅸ)。结论化合物Ⅰ为新化合物,命名为环氧香豆酸(epoxy coumaric acid)。

Objective To study the chemical constituents of bamboo root. Methods The chemical constituents were isolated by chromatographic methods and their structures were elucidated by analysis of spectral data and physicochemical properties. Results Nine compounds were isolated and identified as 3- （p-hydroxyphenyl）-（2, 3） oxirane-1-propionic acid （Ⅰ）, 2, 3-dihydroxy-1-（4-hydroxy-3, 5-dimethoxyphenyl）-1-propanone （ Ⅱ）, （＋） lirioresinol B （Ⅲ）, protocatechuic aldehyde （ Ⅳ）, protocatechuic acid （Ⅴ）, orientin （Ⅵ）, vitexin （Ⅶ）, homoorientin （Ⅷ）, and isovitexin （Ⅸ）. Conclusion Compound I is a new compound named epoxy coumaric acid.