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Table 1 1H (600 MHz, MeOD) and 13C (150 MHz, MeOD) data of AOP1, AOP2 and AOP3

From: Cycloartanes from Oxyanthus pallidus and derivatives with analgesic activities

Positions AOP1 AOP2 AOP3
δC δH (mult, J(Hz) δC δH (mult, J(Hz) δC δH (mult, J (Hz)
1 31.5 1.33 (1H, m, Hβ), 1.61 (1H, m, Hα) 31.3 1.33 (1H, m, Hβ), 1.60 (1H, m, Hα) 31.3 1.33 (1H, m, Hβ), 1.62 (1H, m, Hα)
2 30.5 1.64 (1H, m, Hα), 1.73 (1H, m, Hβ) 29.4 1.64 (1H, m, Hα), 1.73 (1H, m, Hβ) 29.4 1.63 (1H, m, Hα), 1.72 (1H, m, Hβ)
3 79.1 3.17 (dd, 4.6, 10.1) 77.7 3.24 (dd, 4.4, 11.1) 78.0 3.17 (dd, 4.5, 10.1)
4 41.2   39.8 / 39.8 /
5 45.6 1.51 (dd, 3.7, 13.1) 45.7 1.52 (dd, 3.9, 13.1) 45.7 1.51 (dd, 3.8, 12.1)
6 29.3 1.04 (1H, m, Hα), 1.74 (1H, m, Hβ) 30.7 1.04 (1H, m, Hα), 1.74 (1H, m, Hβ) 30.7 1.03, (1H, m, Hα), 1.74 (1H, m, Hβ)
7 70.1 3.50 ddd (4,0, 7.1, 12.6) 70.0 3.50 ddd (4,0, 7.1, 12.7) 70.0 3.50 (ddd, 4.0, 9.4, 13.3)
8 54.4 1.72 (1H, d, 7.0) 54 .2 1.71 (1H, d, 6.0) 54.2 1.72 (1H, d, 6.0)
9 26.6   26.5 / 26.5 /
10 19.7   19.6 / 19.7 /
11 26.0 1.31 (1H, m, Hα), 1.90 (1H, m, Hβ) 26.0 1.31 (1H, m, Hα), 1.92 (1H, m, Hβ) 26.0 1.30 (1H, m, Hα), 1.92 (1H, m, Hβ)
12 32.8 1.61 (1H, m, Hα), 1.68 (1H, m, Hβ) 32.4 1.63 (1H, m, Hα), 1.69 (1H, m, Hβ) 32.3 1.62 (1H, m, Hα), 1.68 (1H, m, Hβ)
13 45.3   45.4 / 45.4 /
14 46.0   46.0 / 46.0 /
15 48.8 1.64 (1H, dd, 5.2, 7.5, Hβ), 2.25 (1H, dd, 5.2 7.5, Hα) 48.8 1.66 (1H, dd, 5.2, 7.6, Hβ), 2.25 (1H, dd, 5.2, 7.6, Hα) 48.8 1.67 (1H, dd, 5.2, 7.7, Hβ), 2.25 (1H, dd, 5.2, 7.7, Hα)
16 72.1 4.43 (1H, ddd, 5.2, 7.5, 7.8) 72.1 4.44 (1H, ddd, 5.2, 7.6, 7.9) 72.0 4.43 (1H, ddd, 5.2, 7.6, 7.9)
17 55.8 1.63 (1H, dd, 7.8, 12.3) 55.9 1.64 (1H, dd, 7.9, 12.4) 55.8 1.63 (1H, dd, 7.9, 12.4)
18 17.2 1.20 (3H, s) 17.3 1.22 (3H, s) 17.2 1.21 (3H, s)
19 27.9 0.19 (1H, d, 4.0, Hα), 0.87 (1H, d, 4.0, Hβ) 27.9 0.19 (1H, d, 4.0, Hα), 0.85 (1H, d, 4.0, Hβ) 27.9 0.75 (1H, d, 4.0, Hα), 0.86 (1H, d, 4.0, Hβ)
20 30.1 1.81 (1H, m) 28.4 1.92 (1H, m) 28.5 1.82 (1H, m)
21 17.5 0.99 (1H, d, 7.6) 17.6 0.99 (1H, d, 7.6) 17.5 1.00 (1H, d, 7.6)
22 31.1 1.26 (1H, m, Hα),, 1.82 (1H, m, Hβ) 32.3 1.24 (1H, m, Hα), 1.82 (1H, m, Hβ) 32.5 1.22(1H, m, Hα),, 1.92(1H, m, Hβ)
23 28.3 1.63 (1H, m, Hα), 1.70 (1H, m, Hβ) 27.0 1.63 (1H, m, Hα), 1.72 (1H, m, Hβ) 28.0 1.62 (1H, m, Hα), 1.72 (1H, m, Hβ)
24 218.9   77.0 3.40 (1H, dd, 5.1, 12.0) 79.3 3.25 (1H, dd, 4.9, 11..3)
25 77.8   72.4 / 72.4 /
26 26.8 1.19 (3H, s) 24.0 1.19 (3H, s) 24.3 1.19 (3H, s)
27 26.8 1.17 (3H, s) 23.9 1.17 (3H, s) 23.4 1.16 (3H, s)
28 26.0 0.98 (3H, s) 24.6 0.98 (3H, s) 24.6 0.98 (3H, s)
29 13.2 0.86 (3H, s) 13.1 0.84 (3H, s) 14.9 0.86 (3H, s)
30 18.5 0.97 (3H, s) 18.4 0.97 (3H, s) 18.4 0.97 (3H, s)