1. Bioacttve oleanene glucuronides obtained from fabaceous plants
2. Pericarp saponins of Akebia quinata Decne. I. Glycosides of hederagenin and oleanolic acid.
3. 4) Compound 5, an amorphous powder, [α]D20 +16.2° (c=0.10, MeOH). 1H-NMR spectrum (in pyridine-d5) δ: 0.87 (3H, s, H3-30), 0.89 (3H, s, H3-29), 0.99 (3H, s, H3-25), 1.09 (3H, s, H3-24), 1.13 (3H, s, H3-26), 1.17 (3H, s, H3-27), 3.75 (1H, d, J=10.3 Hz, Ha-23), 4.13 (1H, overlapped, Hb-23), 4.26 (1H, dd, J=3.7, 11.5 Hz, H-3), 5.41 (1H, br s, H-12). 13C-NMR spectrum (in pyridine-d5) δ: 38.5, 25.7, 80.5, 43.0, 47.2, 17.7, 33.5, 39.5, 47.7, 36.4, 23.3, 122.4, 143.6, 41.7, 27.8, 22.9, 46.5, 41.2, 45.7, 30.2, 32.3, 32.1, 13.5, 63.5, 15.7, 17.1, 25.3, 176.0, 23.5, 32.6 (aglycone moiety C-1—30, respectively), 101.2, 72.3, 73.4, 74.2, 69.8, 18.1, 103.8, 76.0, 73.6, 68.8, 65.1 [(3-O-α-L-rhamnopyranosyl-(C-1—6)-α-L-arabinopyranosyl-(C-1—5), respectively], 102.2, 72.1, 72.3, 73.6, 70.4, 18.1, 104.4, 75.3, 76.7, 78.2, 76.7, 60.8, 95.1, 73.6, 78.2, 70.4, 77.8, 68.7 [28-O-α-L-rhamnopyranosyl-(C-1—6)-β-D-glucopyranosyl-(C-1—6)-β-D-glucopyranosyl-(C-1—60, respectively].
4. Macrophyllosaponin E. A Novel Compound from the Roots of Astragalus olelfolius.