5-(2 '-oxoheptadecyl)-resorcinol and 5-(2 '-oxononadecyl)-resorcinol, cytotoxic metabolites from a wood-inhabiting basidiomycete
5-(2'-oxoheptadecyl)-resorcinol (1) and 5-(2'-oxononadecyl)-resorcinol (2) were isolated from fermentations of an imperfect basidiomycete. The structures of the compounds were determined by spectroscopic techniques. Both compounds exhibit cytotoxic effects against the human colon tumor cell lines COLO-320, DLD-1 and HT-29 and the human promyeloid leukemia cell line HL-60, the human leukemia T cell