Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Dammarane Type – Protopanaxadiol-12,23-oxid
Biological source: Panax ginseng [1]
C42H68O13: 780.465
Mp: 179–180°C (MeOH) [1]
[α]D − 18.4° (C5N5N) [1]
FAB-MSm/z: 781 [M-H]− [1]
IR (KBr) νmax cm−1: 3500 [1]
1H NMR (J/Hz): 3.64 (d, J = 8, H-12), 0.95 (s, CH3-18), 0.83 (s, CH3-19), 1.50 (s, CH3-21), 4.81 (t, J = 9, H-23), 5.51 (brd, J = 9, H-24), 1.66 (s, CH3-26), 1.80 (s, CH3-27), 1.30 (s, CH3-28), 1.00 (s, CH3-29), 1.06 (s, CH3-30)
β-D-Glcp: 4.94 (d, J = 8, H-1), 4.04 (t, J = 8, H-2), 4.26 (m, H-3), 4.22 (m, H-4), 4.02 (m, H-5), 4.40 (dd, J = 11, 5, H-6), 4.60 (dd, J = 11, 2, H-6)
β-D-Glcp′: 5.13 (d, J = 8, H-1), 3.97 (t, J = 8, H-2), 4.26 (m, H-3), 4.23 (m, H-4), 3.98 (m, H-5), 4.36 (dd, J = 11, 2, H-6), 4.54 (dd, J = 11, 5, H-6) [1]
Table 1
C-1 |
39.4 |
C-12 |
79.8 |
Glc-1 |
106.9 |
3 |
88.7 |
13 |
49.7 |
2 |
75.8 |
4 |
39.7 |
14 |
51.2 |
3 |
78.8 |
5 |
56.4 |
15 |
32.5 |
4 |
71.89... |
References
- 1.S. Zhang, X. Yao, Y. Chen, C. Cui, Y. Tezuka, T. Kikuchi, Chem. Pharm. Bull. 37(7), 1966 (1989)CrossRefGoogle Scholar