title: Components of Root Bark of Cudrania tricuspidata l.1,2 Structures of Four New Isoprenylated Xanthones, Cudraxanthones A, B, C and D.
abstract: Four new isoprenylated xanthones, cudraxanthones A, B and C were isolated from the N-hexane extract of the root bark of CUDRANIA TRICUSPIDATA (Carr.) Bur. (Japanese name "Hariguwa"; Moraceae), and cudraxanthone D from the benzene extract. The structures of cudraxanthones A, B, C and D were shown to be 1-4, respectively, on the basis of spectral and chemical evidence.
authors.affiliation: Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Fujimoto
authors.forename: Y
authors.initials: Y
authors.lastname: Hano
authors.forename: T
authors.initials: T
authors.lastname: Nomura