Kehokorins A-C,novel cytotoxic dibenzofurans isolated from the myxomycete Trichia favoginea var.persimilis

摘要

Kehokorins A(1)-C(3),three novel dibenzofurans,have been isolated from field-collected fruit bodies of the myxomycete,Trichia favoginea var.persimilis,and their structures were elucidated by spectral data.Kehokorin A(1)was a alpha-L-rhamno-pyranoside of kehokorin B(2),while kehokorin C(3)was a 1-demethoxy analog of 2.Kehokorin A(1)was cytotoxic against HeLa cells with an IC_(50)value of 1.5 mug/mL.