中文摘要：

目的研究半夏乙醇提取物的乙酸乙酯萃取部分,对其中的化学成分进行分离鉴定。方法采用硅胶、Sephadex LH-20柱色谱以及制备型高效液相色谱等手段进行分离纯化,通过理化性质和各种波谱技术对化合物进行结构鉴定。结果从半夏的乙酸乙酯萃取部分分离得到10个化合物,分别鉴定为环-（苯丙氨酸-酪氨酸）[cyclo-（Phe-Tyr）,1]、环-（亮氨酸-酪氨酸）[cyclo-（Leu-Tyr）,2]、尿嘧啶脱氧核苷（2′-deoxyuridine,3）、（＋）异落叶松脂醇9-O-β-D-葡萄糖苷[（＋）isolaricires-inol9-O-β-D-glucopyranoside,4]、（＋）异落叶松脂醇[（＋）isolariciresinol,5]、尿嘧啶（uracil,6）、没食子酸（gallic acid,7）、尿苷（uridine,8）、腺苷（adenosine,9）、环-（缬氨酸-酪氨酸）[cyclo-（Val-Tyr）,10]。结论化合物1、3、4为首次从半夏属植物中分离得到,化合物2、7、10为首次从半夏中分离得到。

英文摘要：

Objective To isolate and identify the chemical constituents of the ethyl acetate extract part of the bulk of Pinellia ternata（Thunb.）Breit.ethanol extract.Methods The compounds were isolated by silica gel column,Sephadex LH-20 column chromatography and HPLC techniques.And these compounds were identified by analysis of their spectral data and chemical properties.Results Ten compounds were obtained and identified as cyclo（Phe-Tyr）（1）,cyclo-（Leu-Tyr）（2）,2′-deoxyuridine（3）,isolariciresinol 9-O-β-D-glucopyranoside（4）,isolariciresinol（5）,uracil（6）,gallic acid（7）,uridine（8）,adenosine（9）and cyclo-（Val-Tyr）（10）.Conclusions Compounds 1,3,4 are all firstly isolated from the Pinellia genus.Compounds 2,7,10 are isolated from this plant for the first time.