| Literature DB >> 12932128 |
Qun Xiong Zheng1, Zhao Jun Xu, Xian Feng Sun, Françoise Guéritte, Michele Cesario, Han Dong Sun, Christopher H K Cheng, Xiao-Jiang Hao, Yu Zhao.
Abstract
Three new eudesmane sesquiterpenes, 5 beta-hydroxyilicic acid (1), 5 alpha-hydroxyl-4-epi-ilicic acid methyl ester (2), and 3 alpha-hydroxyilicic acid (3), together with 12 known sesquiterpenes were isolated from the aerial part of Laggera alata. Their structures were elucidated primarily by NMR and mass spectroscopic methods. The structures of 1 and 2 were confirmed by X-ray crystallography.Entities:
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Year: 2003 PMID： 12932128 DOI： 10.1021/np0205856
Source DB: PubMed Journal: J Nat Prod ISSN： 0163-3864 Impact factor: 4.050