Anti-inflammatory components isolated from Atractylodes macrocephala Koidz.

The petroleum ether-ether (1 : 1) extract of Atractylodis macrocephalae was screened by cell membrane chromatography (CMC) and subsequently separated by column chromatography (CC) and high performance liquid chromatography (HPLC). Five components were isolated and identified as atractylenolide III 1, atractylenolide I 2, 14-acetoxy-12-senecioyloxytetradeca-2E,8E,10E-trien-4,6-diyn-1-ol 3, 14-acetoxy-12-alpha-methylbutyl-2E,8E,10E-trien-4,6-diyn-1-ol 4 and 14-acetoxy-12-beta-methylbutyl-2E,8E,10E-trien-4,6-diyn-1-ol 5 by routine spectrometric methods. The data of 5 and (13)C-NMR data of 3 and 4 were reported for the first time. Further in vivo experiments showed that the five components exhibited significant inhibiting effects both on the ear edema induced by xylene and on the peritoneal capillary permeability induced by acetic acid in mice.