A new guaianolide from the roots of Pterocypsela elata

作     者：Yi-Xiao Bai Jing Tan Fu-Lin Yan Ming-Ming Ding Xiang Wang 

作者机构：Pharmacy CollegeXinxiang Medical University Third Clinical College of Xinxiang Medical University 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2013年第24卷第1期

页      面：55-56页

核心收录：

学科分类：1008[医学-中药学(可授医学、理学学位)] 1006[医学-中西医结合] 100602[医学-中西医结合临床] 10[医学] 

基　　金：supported by the National Natural Science Foundation of China(No.81172953) 

主　　题：CompositaePterocypsela elataSesquiterpene lactonesGuaianolide 

摘      要：In order to find more biologically active substances, we have carefully investigated the chemical constituents of Pterocypsela elata. One new guaianolide, （4S）-ll-methoxycarbonyl-guaiane- l（10）,5（6）,7（11）,8（9）-tetraen-6,12-olide was isolated from the EtOAc extracts of the roots of P. elata. Its structure was elucidated by various spectroscopic methods and confirmed by X-ray crystallographic analysis.