1984 Volume 32 Issue 5 Pages 1724-1728
Three new melampolide-type sesquiterpene lactones have been isolated from the methanol extract of Ixeris tamagawaensis KITAM. (Compositae) in addition to luteolin-7-glucoside, and the known sesquiterpene 8-desoxyurospermal A. The structures of the new compounds were elucidated from the spectral data and some chemical transformations.