[关键词]
[摘要]
目的 研究油茶Camellia oleifera枯饼的化学成分。方法 利用硅胶、MPLC柱色谱、高效制备液相色谱等色谱方法进行分离纯化,根据理化常数测定及波谱数据分析鉴定化合物结构。结果 从油茶枯饼中分离得到3个化合物,分别鉴定为3β,15α,16α,22α,28-五羟基-22-O-当归酰基-齐墩果-12-烯-3-O-β-D-葡萄糖基(1→2)-[β-D-葡萄糖基(1→2)-β-D-木糖基(1→3)]-β-D-葡萄糖醛酸甲酯苷(1)、gordonoside R(2)、gordonoside Q(3)。结论 化合物1 为新化合物,命名为油茶皂苷Ab,化合物2 和3 为首次从油茶中分离得到。
[Key word]
[Abstract]
Objective To study the chemical constituents of the defatted seeds of Camellia oleifera. Methods The chemical constituents were isolated and purified by column chromatography on silica gel, MPLC, and PHPLC. Their structures were elucidated on the basis of physicochemical properties and spectral analysis. Results Three compounds were isolated from the defatted seeds of C. oleifera and elucidated as 3β,15α,16α,22α,28-pentol-22-O-angeloyloxy-olean-12-ene-3-O-β-D-glucopyranosyl-(1→2)-β-D-xylopyranosyl-(1→3)-[β-D-glucopyranosyl-(1→2)]-β-D-glucuronopyranoside-6-O-methyl ester (1), gordonoside R (2), and gordonoside Q (3). Conclusion Compound 1 is a new compound named camelliasaponin Ab, and compounds 2 and 3 are isolated from this plant for the first time.
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[基金项目]
江西省青年科学基金项目(20142BAB215062)