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 Chemjournal_title
European journal of medicinal chemistryauthors
Cheng X,Zeng Q,Ren J,Qin J,Zhang S,Shen Y,Zhu J,Zhang F,Chang R,Zhu Y,Zhang W,Jin Hdoi
10.1016/j.ejmech.2011.08.047subject
Has Abstractpub_date
2011-11-01 00:00:00pages
5408-15issue
11eissn
0223-5234issn
1768-3254pii
S0223-5234(11)00638-6journal_volume
46pub_type
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