Sesquiterpene lactones from Inula falconeri, a plant endemic to the Himalayas, as potential anti-inflammatory agents.

Abstract:

:A phytochemical investigation of Inula falconeri, a plant endemic to the Himalayas, afforded 10 new sesquiterpenoids and 26 known sesquiterpene lactones, including those bearing guaiane, pseudoguaiane, xanthane, eudesmane, germacrane, rare secocaryophyllane, chromolaevane, and carabrane frameworks. The structures were elucidated via spectroscopic analysis and compared with data from literature. All the isolates were assessed for their inhibitory effects against LPS-induced nitric oxide production in RAW264.7 macrophages. Compounds 4, 11, 24, and 31 showed stronger inhibitory activities than the positive control with IC(50) values of 0.13, 0.07, 0.11, and 0.11 μM, respectively. These studies also led to a better understanding of the structure-activity relationships for the sesquiterpene lactone family of compounds.

journal_name

Eur J Med Chem

authors

Cheng X,Zeng Q,Ren J,Qin J,Zhang S,Shen Y,Zhu J,Zhang F,Chang R,Zhu Y,Zhang W,Jin H

doi

10.1016/j.ejmech.2011.08.047

subject

Has Abstract

pub_date

2011-11-01 00:00:00

pages

5408-15

issue

11

eissn

0223-5234

issn

1768-3254

pii

S0223-5234(11)00638-6

journal_volume

46

pub_type

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