太白米的酚酸类成分研究

屠鹏飞; 吴卫中; 郑俊华

太白米的酚酸类成分研究

PHENOLIC ACIDS FROM THE BULBS OF NOTHOLIRION BULBULIFERUM

摘要

摘要: 目的：研究太白米Notholirion bulbuliferum(Lingelish.) Stearn干燥小鳞茎的化学成分。方法：采用硅胶柱色谱分离化学成分，IR，¹HNMR，¹³CNMR，MS等方法进行结构鉴定。结果：从正丁醇萃取物中分离鉴定了6个酚酸类成分，分别为对香豆酸甲酯(methyl p-coumarate,I)、对甲氧基肉桂酸(p-methoxy cinnamic acid, II)、对香豆酸(p-coumaric acid, III)、阿魏酸(ferulic acid, IV)、咖啡酸乙酯(ethyl caffeate, V)、1-O-咖啡酰甘油酯(1-O-caffeoyl glycerol, VI)；另外，从其石油醚萃取物和氯仿萃取物中分离鉴定了β-谷甾醇(VII)、β-谷甾醇葡萄糖苷(IX)和正二十八酸(VIII)。结论：化合物VI为新化合物，其它化合物均为首次从本植物中分离得到。

Abstract: AIM: To study the chemical constituents of the bulbs of Notholirion bulbuliferum(Lingelish.) stearn. METHODS: The chemical constituents were isolated by silica gel column chromatography, and the chemical structures were elucidated by IR, ¹HNMR， ¹³CNMR and MS. RESULTS: Six phenolic acids and esters have been isolated from the n-butanol extract, and three other compounds have also been isolated from the petroleum ether extract and CHCl3 extract of this plant. They have been identified as methyl p-coumarate(I), p-methoxy cinnamic acid(II), p-coumaric acid(III), ferulic acid(IV), ethyl caffeate(V), 1-O-caffeoyl glycerol(VI), β-sitosterol(VII), β-sitosteryl glucoside(IX) and n-octacosanoic acid(VIII).CONCLUSION: Compound VI is a new compound. The others are isolated from this plant for the first time.

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