Two New Norisoprenoid Derivatives from the Red Alga Gymnogongrus flabelliformis

作     者：Zhao Hui YUAN Li Jun HAN Xiao FAN Ming MA Da Yong SHI Jian Gong SHI 

作者机构：Institute of Oceanology Chinese Academy of Sciences Qingdao 266071 Institute of Materia Medica Chinese Academy of Me~iical Sciences and-Peking Union Medical College Beijing 100050 Graduate School of the Chinese Academy of Sciences Beijing 100039 

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

年 卷 期：2006年第17卷第9期

页      面：1205-1208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] 0703[理学-化学] 100602[医学-中西医结合临床] 10[医学] 

基　　金：教育部跨世纪优秀人才培养计划 国家自然科学基金(20432030 30530080) 国家自然科学基金(KZCX3-SW-215) 

主　　题：Red alga Gymnogongrusflabelliformis norisoprenoid phenylacetates. 

摘      要：Two new norisoprenoid derivatives have been isolated from the red alga Gymnogongrus flabelliformis. Their structures were elucidated as （3R, 6R, 7E）-（＋）-3-O-phenylacetyl-4,7-megas- tigmadiene-9-one and （3R,TE）-（-）-3-O-phenylacetyl-5,7-megastigmadiene-9-one, respectively, by spectroscopic methods including HRMS, 1D and 2D NMR techniques.