title: Studies on constituents of fruit body of Polyporus umbellatus and their cytotoxic activity.
abstract: From the crude drug Chorei, the fruit body of Polyporus umbellatus, seven new components named polyporusterone A, B, C, D, E, F and G, were isolated and their structures were determined on the basis of the spectral data. These compounds showed cytotoxic action on leukemia 1210 cell proliferation.
authors.affiliation: Research Section, Sanwa Shoyaku Co., Ltd. Utsunomiya, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Ohsawa
authors.forename: M
authors.initials: M
authors.lastname: Yukawa
authors.forename: C
authors.initials: C
authors.lastname: Takao
authors.forename: M
authors.initials: M
authors.lastname: Murayama
authors.forename: H
authors.initials: H
authors.lastname: Bando
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents / Q000302:isolation & purification*; D007939:Leukemia L1210 / Q000188:drug therapy; D009682:Magnetic Resonance Spectroscopy; D010936:Plant Extracts / Q000737:chemistry / Q000494:pharmacology*; D011124:Polyporaceae / Q000378:metabolism*
chemical_list: D000970:Antineoplastic Agents; D010936:Plant Extracts