Table 1 Summary of 1H and 13C NMR data for compound 1 and compound 2 in CDCl3
Position | Compound 1 | Compound 2 | ||
|---|---|---|---|---|
δ (1H, mult., J) | 13C (δ) | δ (1H, mult., J) | 13C (δ) | |
1 | 174.7 | 174.7 | ||
2 | 1.92 (1H, d, 16) 2.5 (1H, dd, 17, 10.7) | 39.2 | 1.92 (1H, d, 16) 2.5 (1H, dd, 17, 10.7) | 39.2 |
3 | 3.72 (1H, d, 10.0) | 67.1 | 3.72 (1H, d, 10.0) | 66.8 |
4 | 1.48 (1H, *) | 39.9 | 1.48 (1H, *) | 39.9 |
5 | 4.1 (1H, d, 13.0) | 71.6 | 3.77 (1H, d, 9.0) | 72.6 |
6 | 4.3 (1H, *) | 67.9 | 1.3 (1H, *) | 38 |
7 | 2.0 (1H, m) 1.56 (1H, *) | 29.2 | 1.42 (1H, m) 1.57 (1H, *) | 32.7 |
8 | 2.8 (1H, br) | 45.1 | 2.7 (1H, br) | 45.1 |
9 | 204 | 204 | ||
10 | 6.34 (1H, d, 15.0) | 118.3 | 6.33 (1H, d, 15.0) | 118.6 |
11 | 7.32 (1H, d, 15.0) | 148.1 | 7.32 (1H, d, 15.0) | 147.8 |
12 | 135.1 | 135.5 | ||
13 | 5.92 (1H, d, 10.0) | 141.9 | 5.92 (1H, d, 10.0) | 141.7 |
14 | 2.98 (1H, m) | 45.1 | 2.98 (1H, m) | 45.1 |
15 | 4.98 (1H, ddd, 10.0, 10.0, 2.0) | 75.3 | 4.98 (1H, ddd, 10.0, 10.0, 2.0) | 75.2 |
16 | 1.88 (1H, m) 1.63 (1H, *) | 25.4 | 1.88 (1H, m) 1.63 (1H,*) | 25.5 |
17 | 0.94 (3H, *) | 9.5 | 0.94 (3H, *) | 9.5 |
18 | 1.0 (3H, d, 6.0) | 9.5 | 1.0 (3H, d, 6.0) | 9.6 |
19 | 1.22 (3H, d, 7.0) | 17.6 | 1.62 (1H, *) 1.3 (1H, *) | 22.7 |
20 | 1.81 (3H, s) | 13.2 | 0.92 (3H, *) | 9.4 |
21 | 4.01 (1H, dd, 9.0, 4.0) 3.55 (1H, *) | 69.1 | 1.23 (3H, d,7.0) | 17.6 |
22 | 1.81 (3H, s) | 13.2 | ||
23 | 4.01 (1H, dd, 9.0, 4.0) 3.55 (1H, *) | 69 | ||
1` | 4.58 (1H, d, 7.5) | 101.1 | 4.58 (1H, d, 7.5) | 101.1 |
2` | 3.04 (1H, dd, 7.5, 2.5) | 81.5 | 3.04 (1H, dd, 7.5, 2.5) | 81.5 |
3` | 3.77 (1H, d, 9.0) | 79.8 | 3.77 (1H, d, 9.0) | 79.8 |
4` | 3.2 (1H, m) | 72.6 | 3.2 (1H, m) | 72.6 |
5` | 3.53 (1H, *) | 70.5 | 3.53 (1H, *) | 70.5 |
6` | 1.29 (3H, *) | 17.7 | 1.29 (3H, *) | 17.7 |
7` | 3.5 (3H, s) | 59.7 | 3.5 (3H, s) | 59.7 |
8` | 3.63 (3H, s) | 61.9 | 3.63 (3H, s) | 61.9 |