红血藤的化学成分

红血藤为豆科密花豆属植物红血藤(Spatholobus sinensis)的干燥藤茎,是正品鸡血藤的地区代用品,至今未见化学成分和生物活性研究的报道。本研究运用溶剂法及各种色谱方法进行分离纯化,并根据理化性质和波谱数据鉴定化合物的结构。从其乙醇提取物的乙酸乙酯和正丁醇部分分离得到8个化合物,分别鉴定为红血藤苷A(spatholosineside A,1),2′,4′,5,7-四羟基异黄酮(2),异甘草素(isoliquiritigenin,3),lupinalbin A(4),coumestrol(5),柚皮素(naringenin,6),原儿茶酸(protocatechuic acid,7),leonuriside A(8)。化合物1为新化合物;化合物8为从本科植物首次得到;化合物2、 4、 5、 6为从本属植物首次得到;化合物3、 7为从红血藤首次得到。

Chemical constituents from Spatholobus sinensis

Spatholobus sinensis is a plant of the Spatholobus genus (Leguminosae family). Its caulis are used as "ji-xue-teng" regionally. However, to our knowledge, no phytochemical investigation on S. sinensis has been reported to date. In this study, eight compounds were isolated from the ethanol extract of the caulis of S. sinensis, by solvents extraction and column chromatography methods. By analysis of their physic-chemical constants and spectral data, the structures of 8 compounds were identified as spatholosineside A (1), 2',4',5,7-tetrahydroxyisoflavone (2), isoliquiritigenin (3), lupinalbin A (4), coumestrol (5), naringenin (6), protocatechuic acid (7), leonuriside A (8). Compound 1 is a new compound.