Ferruginin A and B and ferruanthrone, new triprenylated anthranoids from Vismia baccifera var. ferruginea - Monache, F.D.; Mc Quhae, M.M.; Ferrari, F.; Marini-Bettolo, G.B. (Elsevier)
The isolation of the new triprenylated anthranoids-ferruginin A and B and ferruanthrone-and the known harunganin is reported. The structure of the ferruginins was established by chemical and spectroscopical methods and by their thermal rearrangement to anthrones.On the basis of the PMR spectra in C"5D"5N of the rearrangement products and of ferruanthrone, a revised structure of harongin anthrone is proposed.
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Keywords: V