Abstract
Reinvestigation of the dried flowers of Jasminum polyanthum has led to the isolation of six new secoiridoid glucosides, jaspolyanoside, polyanoside, isojaspolyosides A, B and C, and 6-O-β-D-glucopyranosyloleuropein, together with the known secoiridoid glucoside, angustifolioside B and flavonoid glycosides, nicotiflorine, kaempferol 3-O-(2-O-α-L-rhamnopyranosyl-β-D-galactopyranoside) and mauritianin. The structures of the new compounds were elucidated on the basis of chemical and spectroscopic evidence. Comparison of the spectral data of 6-O-β-D-glucopyranosyloleuropein and those reported for angustifolioside A, previously recognized as 6-O-β-D-glucopyranosyloleuropein, led to the conclusion that the structure of angustifolioside A should be revised to 5-O-β-D-glucopyranosyloleuropein.
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