Exaltoside and 7-Epiexaltoside, Two Novel Acylated Secoiridoid Glucosides from Villarsia exaltata*.
Aerial parts of VILLARSIA EXALTATA (Menyanthaceae) were investigated for secoiridoids. Two new acylated compounds of the "foliamenthintype", named exaltoside and 7-epiexaltoside, have been isolated and structurally elucidated by spectroscopic means ( (1)H-, (13)C-NMR, COSY, FAB and FD mass spectrometry).
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Institut für Pharmazeutische Biologie der Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, D-4000 Düsseldorf 1, Federal Republic of Germany.