留兰香活性部位化学成分的研究Ⅲ

目的:对唇形科薄荷属植物留兰香Mentha spicata的活性部位化学成分进行深入研究。方法:采用硅胶柱色谱等方法进行分离纯化,根据理化性质和光谱数据进行结构鉴定。结果:分离得到5个化合物,分别鉴定为原儿茶醛(protocatechuic aldehyde,Ⅰ),原儿茶酸(protocatechuic acid,Ⅱ),3′-甲氧基木犀草素(chrysoeriol,Ⅲ),5,6-二羟基-7,8,3′,4′-四甲氧基黄酮(5,6-dihydroxy-7,8,3′,4-′tetramethoxyflavone,Ⅳ),5,6,7,4′-四羟基-3′-甲氧基黄酮(nodiflo-retin,Ⅴ)。结论:化合物Ⅰ,Ⅱ为首次从薄荷属植物中分离得到,化合物Ⅲ,Ⅳ,Ⅴ为留兰香中首次分离得到。

Study of chemical constituents in active parts of Mentha spicata Ⅲ

OBJECTIVE: To study the chemical constituents of Mentha spicata. METHOD: The chemical constituents were isolated by silica gel column chromatography, and identified by physical and chemical characters and spectroscopic analysis. RESULT: Compounds I - V were obtained and their structures were elucidated as protocatechuic aldehyde (I), protocatechuic acid (II), chrysoeriol (III), 5, 6-dihydroxy-7, 8, 3', 4'-tetramethoxyflavone (IV), nodifloretin (V). CONCLUSION: Compound I and II were first isolated from the genus Mentha. Compound Ill, IV and V were isolated from M. spicata for the first time.