Structures of New Seoiridoid Glycosides from the Leaves of Syringa vulgaris LINN.

Abstract

Three new secoiridoid glycosides, named isoligustroside, isooleuropein and neooleuropein, were isolated from the leaves of Syringa vulgaris LINN., and the structures were elucidated on the basis of carbon-13 nuclear magnetic resonance spectra and other physicochemical evidence.