Two New Lignans from Taxus yunnanensis  

作　　者：黎胜红 张宏杰 姚娉 牛雪梅 项伟 孙汉董 

机构地区：[1]State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650204, China

出　　处：《Chinese Journal of Chemistry》2003年第7期926-930,共5页中国化学（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(No.3950081),the Young Academic and Technical Leader Raising Foundation of Yunnan Province(awarded to Hong-Jie Zhang),and the Special Supported Bioscience and Biotechnique Foundation of

摘　　要：The phytochemical investigation on the ethanolic extracts of the barks of Taxus yunnanensis (Taxaceae) led to the isolation of two new neo-lignans, named taxuyunins A (1) and B (2), a-long with the known diterpenolignan, brevitaxin (3). Their structures were elucidated on the basis of spectroscopic and chemical evidences. Compound 1 is a neo-lignan xyloside while compound 2 belongs to the rare neo-lignan possessing a ramified C3 side chain.The phytochemical investigation on the ethanolic extracts of the barks of Taxus yunnanensis (Taxaceae) led to the isolation of two new neo-lignans, named taxuyunins A (1) and B (2), a-long with the known diterpenolignan, brevitaxin (3). Their structures were elucidated on the basis of spectroscopic and chemical evidences. Compound 1 is a neo-lignan xyloside while compound 2 belongs to the rare neo-lignan possessing a ramified C3 side chain.

关 键 词：Taxus yunnanensis TAXACEAE neo-lignans tax-uyunin A taxuyunin B 

分 类 号：O641.4[理学—物理化学]