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From Viburnum awabuki K. KOCH (Caprifoliaceae), four new acetyl glucosides of scopoletin, 2'6'-di-o-acetylscopolin (1), 3', 6'-di-O-acetylscopolin (2), 6'-O-acetylscopolin (3) and 2'-O-acetylscopolin (4), and two lupane-type triterpenes, 6α-hydroxylup-20(29)-en-3-on-28-oic acid (6) and its 6β-epimer (7), were isolated. Their structures were elucidated on the basis of physicochemical evidence, including proton and carbon-13 nuclear magnetic resonance spectrometry.

From the aerial parts of Lonicera japonica THUNB.(Caprifoliaceae), twelve triterpenoidalsaponins having oleanolic acid and hederagenin as aglycones, were isolated.The stnuctures of fournew saponins, 6, 9, 11 and 12, were established to be 3-O-α-L-arabinopyranosyl-28-O-[β-Dglucopyramosyl (1→6)-β-D-glucopyranosyl] oleanolic acid, 3-O-[α-L-rahmnopyranosyl (1→2)-α-L-arabinopyranosyl]-28-O-β-D-glucopyramosyl hederagenin, 3-O-[α-L-rhamnopyramosyl (1→2)-α-L-arabinopyramosyl]-28-O-[β-D-glucopyramosyl (1→6)-β-D-glucopyranosyl] oieanolic acid and 3-O-[α-L-rhamnopyranosyl (1→2)-α-L-arabinopyranoyl]-28-O-[6-acetyl-β-D-giucopyranosyl (1→6)-β-D-glucopyranosyl] hederagenin, respectively, by means of carbon-13 nuclear magneticresonance spectroscopy and chemical evidence.The present studies revealed that the saponin compositionsof the materials collected at different places were significantly different from each other.Among these sapomins, monodesmosides showed strong hemolytic activity, but bisdesmosidesshowed weak hemolytic activity.

Six new triterpenoid saponins, named udosaponins A, B, C, D, E, and F, were isolated as methyl esters, 2, 6, 7, 8, 9 and 11, respectively, along with five kinown saponins as methyl esters, 1, 3, 4, 5 and 10, from the aerial parts of Aralia cordata THUNB. (Araliaceae). On the basis of 13C-nuclear magnetic resonance spectra and chemical evidence, these saponins were established to be oleanane-type saponins having a glucuronopyranosyl residue at the C-3 position of oleanolic acid and hederagenin.