Studies on constituents of fruit body of Polyporus umbellatus and their cytotoxic activity

Chemical and Phaarmaceutical Bulletin

From the crude drug Chorei, the fuit bdy of Polyporus umbellatus, seven new components named polyporusterone A, B, C, D, E, F and G, were isolated and their strutures were determined on the basis of the spectral data. These compounds showed cytotoxic action on leukemia 1210 cell proliferation