Acylated iridoid glycosides from the flowers of Verbascum lasianthum Boiss. ex Bentham

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Tatli İ. İ., Khan I. A., Akdemir Z. S.

Zeitschrift fur Naturforschung - Section B Journal of Chemical Sciences, vol.61, no.9, pp.1183-1187, 2006 (SCI-Expanded) identifier identifier


Two new (1-2) and five known iridoid glycosides (3-7) as well as a known saponin (8) were isolated from the flowers of Verbascum lasianthum and their structures were determined as 6-O-(4″-O-trans-p-coumaroyl)-α-L- rhamnopyranosylaucubin (1), 6-O-(4″-O-trans-p-methoxycin-namoyl)-α- L-rhamnopyranosylaucubin (2), sinuatol (3), aucubin (4), geniposidic acid (5), catalpol (6), ajugol (7) and ilwensisaponin A (8) on the basis of 1D and 2D NMR spectral analysis. © 2006 Verlag der Zeitschrift für Naturforschung.