望天树根皮三萜类成分的分离鉴定
Triterpenes from Root Bark of Shorea wangtianshuea
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摘要: 从望天树根皮的乙醇提取物中分离得到5个三萜化合物,分别鉴定为无羁萜(Ⅰ)、无羁萜-29-酸(Ⅱ)、乙酰齐墩果酸(Ⅲ)、咖啡酰齐墩果酸(Ⅳ)、桦皮酸(Ⅳ)。其中化合物Ⅳ对四氯化碳引起的小鼠实验性肝损伤有明显的保护作用。Abstract: Five triterpenes were isolated from the ethanol extract of root bark of Shorea wangtianshuea and identified as friedelin, 2, 3-oxo-29-friedanoic acid,oleanolic acetate, oleanolic coffeate and betulinic acid respectively. Of them oleanolic coffcate display