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小叶臭黄皮中单萜和倍半萜类成分研究

Keywords: 芸香科,小叶臭黄皮,单萜,倍半萜

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Abstract:

研究小叶臭黄皮Clausenaexcavata茎和叶甲醇提取物的单萜和倍半萜类成分。小叶臭黄皮茎和叶提取物的乙酸乙酯部位经硅胶、RP-18和HPLC等色谱技术分离纯化,通过理化常数和波谱数据鉴定化合物的结构。从小叶臭黄皮茎和叶中分离得到10个化合物,分别鉴定为:1个单萜,命名为excamonoterpene(1);9个倍半萜,即(6R,9S)-9,10-dihydroxy-4-megastigmen-3-one(2),(3R,6R,7E)-3-hydroxy-4,7-megastigmadien-9-one(3),(3S)-3-hydroxy-7,8-dihydro-β-ionone(4),(3S,5R,6S)-3-hydroxy-5,6-epoxy-β-ionone(5),(6R,9R)-9-hydroxy-4-megastigmen-3-one(6),(3S,5R)-dihydroxy-6,7-megstigmadien-9-one(7),(-)-loliolide(8),caryolane-1,9α-diol(9),2,6-dihydroxyhumula-3(12),7(13),9(E)-triene(10)。化合物1为1个新的单萜,2~10为首次从该种植物中分离得到。

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