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目的研究景天科大花红景天的根和根茎中的化学成分。方法采用柱色谱法分离纯化,通过光谱数据鉴定其结构。结果从大花红景天的根和根茎乙醇提取物的石油醚部位、乙酸乙酯部位和正丁醇部位中分离得到12个化合物,分别鉴定为大花红天素(Ⅰ)、胡萝卜甾醇(Ⅱ)、草质素-7-氧-α-L-吡喃鼠李糖苷(Ⅲ)、阿魏酸二十八烷醇酯(Ⅳ)、酪醇(Ⅴ)、红景天苷(Ⅵ)、没食子酸(Ⅶ)、β-谷甾醇(Ⅷ)、正二十六烷酸(Ⅸ)、正二十六烷醇(Ⅹ)、正十八烷酸(Ⅺ)和十九烷(Ⅻ)。结论化合物Ⅱ、Ⅳ、Ⅸ、Ⅹ、Ⅺ、Ⅻ为首次从该植物中分离得到。
Objective To study the chemical constituents in root and rhizome of Rhodiola rosea. The method was isolated and purified by column chromatography and its structure was identified by spectral data. Results Twelve compounds were isolated from the petroleum ether, ethyl acetate and n-butanol fractions of Rhizoma et Radix et Rhizoma et Radix Et Rhizoma et Radix Et Rhizoma. Their structures were identified as Rhodamine (Ⅰ), Carrot sterol (Ⅱ) (Ⅲ), octacosanol ferulate (Ⅳ), tyrosol (Ⅴ), salidroside (Ⅵ), gallic acid (Ⅶ), β-sitosterol (Ⅷ), n-hexacosanoic acid (Ⅸ), n-hexacosanol (Ⅹ), n-octadecanoic acid (Ⅺ) and nonadecane (Ⅻ). Conclusion Compounds Ⅱ, Ⅳ, Ⅸ, Ⅹ, Ⅺ, Ⅻ were isolated from this plant for the first time.