滇白珠化学成分的研究(Ⅱ)

Studies on the Chemical Constituents of Yunnan Wintergreen Root Gaultheria yunnanensis (Ⅱ)

从滇白珠Ｇａｕｌｔｈｅｒｉａ ｙｕｎｎａｎｅｎｓｉｓ根的乙酸乙酯活性部位分得 １０个化合物，经理化性质和波谱分析，它们的结构分别鉴定为阿魏酸（Ⅰ），氯原酸（Ⅱ），（＋）－儿茶素（Ⅲ），原花色素Ａ_２（Ⅳ），芦丁（Ⅴ），槲皮素（Ⅵ），水杨酸（Ⅶ），香草酸（Ⅷ），２，５-二羟基苯甲酸（Ⅸ）和原儿茶酸（Ⅹ）。其中Ⅳ为杜鹃花科植物中首次报道，其它９个化合物为白珠树属植物中首次分得。

Ten compounds have been isolated from the active EtOAc fraction of the root of Gaulhteria yunnanensis (Franch) Rehd.' Their structures were established as ferulic acid (I ), chlorogenic acid (I ), (+)-catechin (n ), proanthocyanidin-A,(IV ), rutin (V ), quercetin (W ), salicylic acid (W ), vanillic acid (W), gentistic acid (IX ) and protocatechuic acid (X ) based on chemical and spectral evidences, IV was found for the first time from Ericaceae. The other nine compounds were obtained from Gaultheria L. for the first time'