Iridoids from Viburnum betulifolium |
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| Authors: | Søren Rosendal Jensen Bent Juhl Nielsen Viggo Norn |
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| Affiliation: | Department of Organic Chemistry, The Technical University of Denmark, DK-2800 Lyngby, Denmark |
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| Abstract: | Two iridoid glycosides have been isolated from Viburnum betulifolium. Viburnalloside, the major leaf glycoside, is composed of an iridoid aglucone acylated at C-1 with isovaleric acid and with a di-O-acetyl-β-D-allopyranosyl moiety attached through a glycosidic bond to C-11. Decapetaloside (10-hydroxyiridodial glucoside) has been isolated from the bark. The structure and absolute configuration of viburnalloside have been established by spectroscopic means, and those of decapetaloside by chemical correlation with adoxoside. |
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| Keywords: | Caprifoliaceae iridoid glucoside acylated iridoid alloside viburnalloside decapetaloside. |
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