目的研究异叶花椒Z anthoxy lum d im orphophy llum的化学成分，并对从异叶花椒中分离得到的一个新的香豆素成分进行结构鉴定。方法将乙醇提取物酸水处理，氯仿萃取部分采用硅胶、F lash柱色谱及重结晶等方法进行分离，利用光谱方法对分离得到的单体成分进行结构鉴定。结果分离并鉴定出7个化合物，其中5个香豆素，分别为6-(3'-甲基-2，'3'-二羟基)丁基-7-甲氧基-8-(3″-甲基-2″-丁烯基)-香豆素(Ⅰ)、8-(3'-甲基-2，'3'-丁烯基)-2-'^{[(1″-羟基-1″-甲基)-乙基]}-6，7-二氢呋喃香豆素(Ⅱ)、6，7，8-三甲基香豆素(Ⅲ)、滨蒿内酯(Ⅳ)、伞形花内酯(Ⅴ)，1个生物碱铁屎米-6-酮(can th in-6-one，Ⅵ)和1个木脂素syringares ino l(Ⅶ)。结论化合物Ⅰ和Ⅱ为首次从该属植物中分得，其中Ⅰ为新化合物，命名为异叶花椒内酯。化合物Ⅵ表现出显著的抑制口腔致病菌的活性。

Objective To study the chemical constituents of Zanthoxylum dimorphophyllum and identify the chemical structures.Methods The compounds were isolated by silica gel,Flash column chromatography and purified by crystallization.Their structures were elucidated by spectral Methods.ResultsSeven compounds were isolated and identified.They are 6-(3',methyl-2',3'-dihydroxy) butyl-7-methoxyl-8-(3″-methyl-2″-butenyl)-coumarin(Ⅰ),8-(3'-methyl)-2',3'-butenyl-2'-(1″-hydroxy-1″-methyl)-ethyl-6,7-dihydrofurancoumarin(Ⅱ),6,7,8-trimethoxycoumarin(Ⅲ),scoparone(Ⅳ),umbelliferone(Ⅴ),canthin-6-one(Ⅵ),and syringaresinol(Ⅶ).Conclusion Compound I is a novel compound and all compounds are obtained from Z.dimorphophyllum for the first time.