Chemical Constituents from Mycelia of Lepista sordida (Agaricomycetes) and Their ABTS Radical Scavenging Activity

<i>Lepista sordida</i> is an edible mushroom possessing high nutritional value and high medicinal value. The artificial cultivation technology of <i>L. sordida</i> made a breakthrough and has been popularized in Yunnan, Guizhou, Sichuan province with good economic benefits. The secondary metabolites were investigated from ethyl EtOAc (acetate extract) of solid cultures of <i>L. sordida</i>. Silica gel column chromatography, semi-preparation HPLC, recrystallization, and medium pressure column chromatography were applied to obtain 15 compounds. Nine compounds were first isolated from genus <i>Lepista</i> and 11 compounds were first isolated from species <i>L. sordida</i>. Moreover, compounds <b>13</b> and <b>14</b> exhibited strong scavenging activity of ABTS.