3-GERANYLOXY-6-METHYL-1,8-DIHYDROXYANTHRAQUINONE AND VISMIONES C, D AND E FROM PSOROSPERMUM FEBRIFUGUM

Article abstract of DOI:10.1016/0031-9422(83)83041-6

Tree new vismiones and 3-geranyloxy-6-methyl-1,8-dihydroxyanthraquinone were isolated from the berries of Psorospermum febrifugum together with the known chrysophanic acid, 2-isoprenylemodin and ferruginin B.Their structures were established through chemical and spectral means.The occurrence of prenylated anthracenes only in Vismieae suggests their use as systematic markers for the tribe.Key Word - Psorospermum febrifugum; Guttiferae; Vismieae; prenylated anthracenes; 3-geranyloxy-6-methyl-1,8-dihydroxyanthraquinone; vismiones C, D and E.