作者: Mohamed-Elamir F. Hegazy , Seikou Nakamura , Wafaa A. Tawfik , Nahla S. Abdel-Azim , Ahmed Abdel-Lateff
DOI: 10.1016/J.PHYTOL.2015.03.019
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摘要: Abstract Pulicaria species, such as undulata , are rich in sesquiterpene lactones. The methylene chloride/methanol (1:1) extract of P. resulted the isolation new sesquiterpenes ( 1 – 4 ), well previously reported metabolites 5 14 ). Structures were elucidated by spectroscopic analyses. Using a mouse peritoneal macrophage bioassay, lipopolysaccharide-induced nitric oxide inhibition was observed with eudesman-type β ,4 -dihydroxy-5 α H,7 H,8 -guaia-10(14),11(13)-dien-8 ,12-olide 11 ) at an EC 50 7.2 μM.