【摘要】 <正> 长前胡（Peucedanum turgeniifolium Wolff）全草供药用,能宣散风热,祛痰镇咳,下气;治感冒,咳嗽,痰稠,头痛及胸闷等症。为研究其药效成分,我们已从全草的甲醇抽提物中分离鉴定了五种新的二氢邪蒿素型（dihydroseselin type）二氢吡喃香豆素和甘露糖醇。其母液,我们又经硅胶柱和制备薄层层析分离,得到了另外四个香豆素化合物,经IR,MS,¹H NMR和¹³C NMR等光谱数据解析,分别被鉴定为（±）7-羟基-8-（2′,3′-二羟基-3′-甲基-丁基）-香豆素〔（±）7-hydroxy-8-（2′,3′-dihy-droxy-3′-methyl-butyl）-coumarin〕（1）,异氧化前胡素（isooxypeucedanin）（2）,更多还原

【Abstract】 From the methanol extract of the whole herb of Peucedanum turgeniifo-lium Wolff, in addition to turgeniifolin A, turgeniifolin B, turgeniifclin C, (±) cis-khellactone, and (±) trans-khellactone, also afforded four known coumar-ins : (±) 7-hydroxy-8- (2’ 3’ -dihydroxy-3’ -methyl-butyl) coumarin (1), is-ooxypeucedanin (2), (±) peuformosin (3) and (±) diisovalerylkhcrllactone (4). The 13C NMR spectral data of these coumarins are presented.更多还原