Studies on the Constituents of Syringa Species. III. Isolation and Structures of Acylated Glycosides from the Leaves of Syringa reticulata (BLUME) HARA. (3)

Four acylated glycosides, named syringalide-A, syringalide-A-3'-α-L-rhamnoside, isosyringalide-3'-α-L-rhamnoside and syringalide-B, have been isolated together with acteoside, cis-acteoside and echinacoside from the fresh leaves of Syringa reticulata (BLUME) HARA. The structure were elucidated on the basis of carbon-13 nuclear magnetic resonance, circular dichroism spectra and some other physicochemical evidence.