title: New naphthoquinone derivatives from the ascomycete IBWF79B-90A.
abstract: Bioactivity-guided fractionation of extracts from the fungus IBWF79B-90A resulted in the isolation of three known naphthoquinones, herbarin, dehydroherbarin, and O-methylherbarin and the azaanthraquinone scorpinone as well as three structurally related derivatives, O-phenethylherbarin and herbaridines A and B. All seven compounds exhibited cytotoxic activities against several cell lines.
authors.affiliation: University of Kaiserslautern, Paul-Ehrlich-Str. 23, D-67663 Kaiserslautern, Germany.
authors.forename: Anja
authors.initials: A
authors.lastname: Schüffler
authors.forename: Johannes C
authors.initials: JC
authors.lastname: Liermann
authors.forename: Heinz
authors.initials: H
authors.lastname: Kolshorn
authors.forename: Till
authors.initials: T
authors.lastname: Opatz
authors.forename: Heidrun
authors.initials: H
authors.lastname: Anke