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Glycosides and acyl glycosides of phenylphenalenones, phenylbenzoisochromenones, and structurally related natural products from plants are compiled. With the exception of one naphthalic anhydride glucoside from the Musaceae, all glycosides are chemotaxonomic markers of the Haemodoraceae, subfamily Haemodoroideae. NMR spectroscopic data indicate that in 6-O-glycosides of phenylphenalenones and phenylbenzoisochromenones,...
Three new metabolites, 5-hydroxy-3,7-dimethoxyflavone-4′-O-β-glucopyranoside (1), 2β,19-epoxy-3β,14β-dihydroxy-19-methoxy-5α-card-20(22)-enolide (4) and β-anhydroepidigitoxigenin-3β-O-glucopyranoside (5), along with two known compounds, uzarigenine (2) and β-anhydroepidigitoxigenin (3), were isolated from Calotropis procera (Asclepiadaceae). The structure elucidation was accomplished mainly by nuclear...
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