| Literature DB >> 23755850 |
Yue Liu1, JiangHao Ma, Qian Zhao, ChunRu Liao, LiQin Ding, LiXia Chen, Feng Zhao, Feng Qiu.
Abstract
Ten new guaiane-type sesquiterpenes (1-10), phaeocaulisins A-J, and 18 known guaiane derivatives were isolated from rhizomes of Curcuma phaeocaulis. Their structures were established on the basis of extensive spectroscopic analyses, X-ray crystallographic analysis, and comparison with literature data. Compound 10 is the first example of a norsesquiterpene with this unusual skeleton isolated from the genus Curcuma. All of the isolated compounds were tested for inhibitory activity against LPS-induced nitric oxide production in RAW 264.7 macrophages. Compounds 1, 2, 20, and 22-24 inhibited nitric oxide production with IC50 values less than 2 μM. Preliminary structure-activity relationships for these compounds are discussed.Entities:
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Year: 2013 PMID： 23755850 DOI： 10.1021/np400202f
Source DB: PubMed Journal: J Nat Prod ISSN： 0163-3864 Impact factor: 4.050