Three sesquiterpene glycosides were isolated from the MeOH (70%) extract of flowers of Yucca gloriosa L. Their chemical structures were established using spectral analyses, i.e., 1D and 2D NMR (1H,… Click to show full abstract
Three sesquiterpene glycosides were isolated from the MeOH (70%) extract of flowers of Yucca gloriosa L. Their chemical structures were established using spectral analyses, i.e., 1D and 2D NMR (1H, 13C, HSQC, HMBC, COSY) and mass spectroscopy (ESI-MS). They all were new glycoside derivatives of nerolidol and a new class for the genus Yucca. Glycoside 1 had the structure (1E,3S,5R,6E,9E)-5-O-β-D-glucopyranosyl-(1_6)-O-β-D-glucopyranosyl-3,5,11-trihydroxy-3,7,11-trimethyldodeca-1,6,9-triene; glycoside 2, (1E,3S,5R,6E,9E)-5-O-β-D-glucopyranosyl-(1→6)-O-β-D-glucopyranosyl-3,5,11,12-tetrahydroxy-3,7,11-trimethyldodeca-1,6,9-triene; glycoside 3, (1E,3S,5R,6E,10E)-(12-O-β-D-glucopyranosyl)-5-O-β-Dglucopyranosyl-(1→6)-O-β-D-glucopyranosyl-3,5,12-trihydroxy-3,7,11-trimethyldodeca-1,6,10-triene.
               
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