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作 者 ：梅兴国;陈钧鸿;董亲颐

期 刊 ：武汉植物学研究 1989年 7卷 2期 页码：179-187

关键词：水丝梨属；钝叶水丝梨；豆甾烷-3β；6α-二醇；豆甾烷-6α-羟基-3β-脂肪酸酯；白桦脂酸；齐墩果酸；鞣花酸；

Keywords:Sycopsis tutckerii Hemsl, Stigmastan-3β, 6α-diol, Betulic acid, Oleanolic acid, Ellagic acid,

摘 要 ：自钝叶水丝梨(Sycopsis tutckerii Hemsl)树皮中得到二十一个化合物。经鉴定为豆甾烷-6α-羟基-3β-月桂酸酯(Ia);豆甾烷-6α-羟基3β-肉豆蔻酸酯(Ib);豆甾烷-6α-羟基-3β-棕榈酸酯(Ic);及其它两个豆甾烷-6α-羟基-3β-脂肪酸酯(Id、Ie,其酸部分结构待定);乙酰白桦脂酸甲酯(Ⅱa);乙酰白桦脂酸(Ⅱb);白桦脂酸甲酯(Ⅱc);白桦酯酸(Ⅱb);乙酰齐墩果酸(Ⅲa);齐墩果酸(Ⅲb);β-谷甾醇(Ⅳa);β-谷甾醇-β-D-葡萄糖甙(Ⅳb);3-O-甲基-鞣花酸-4‘-α-L-鼠李糖甙(Ya);3-O-甲基鞣花酸(Vb);3,4-二-O-甲基鞣花酸(Vc);鞣花酸(Vd);(+)-茶儿茶素(Ⅵ);没食子酸(Ⅷa);原儿茶酸(Ⅷd);焦性没食子酚(Ⅶc)。其中Ia-Ie是一组尚未单离的新化合物。上述化令物,除(+)-茶儿茶素外,均系首次从水丝梨属植物中发现。

Abstract:Twenty-one compounds were isolated from the bark of Sycopsis tutckerii Hemsl which has been used for the treatment of trauma and certain] cancer. Their structures were elucidated on the basis of chemical and spectral evidences as stigmastan-6α-hydroxy-3β-laurate (Ⅰa), stigmastan-6α-hydroxy-3β-myristate(Ⅰb), stigmastan-6α-hydroxy-3β-palmitate (Ⅰc) and two other esters (Ⅰd, Ⅰe, their struetures of acid moieties would be further studied), methyl ester of betulic acid acetate (Ⅱa), betulic acid acetate (Ⅱb), methyl betulate (Ⅱc), betulic acid (Ⅱd), oleanolic acid acetate (Ⅲa), oleanolic acid (Ⅲb), β-sitosterol (Ⅳa), β-sitosterol-β-D-glucoside (Ⅳb), 3-o-methyl-ellagic acid-4′-a-L-rhamnoside (Ⅴa), 3-o-methyl-ellagic acid (Ⅴb), 3,4-di-o-methyl-ellagic acid (Ⅴc), ellagic acid (Ⅴd), (+)-gallocatechin (Ⅵ), gallic acid (Ⅶa), protocatechuic acid (Ⅶb) and pyrogallol (Ⅶc). Ⅰa～Ⅰd was a group of new compounds and stigmastan-3β, 6α-diol was firstly found from nature.

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