Position | Compound 1 | Compound 2 | Compound 3 | |||
---|---|---|---|---|---|---|
δ C | δH (J in Hz) | δ C | δH (J in Hz) | δ C | δH (J in Hz) | |
1 | 169.8 | – | 167.6 | – | 168.0 | – |
2 | – | – | – | – | – | – |
3 | 78.5 | 4.72 (1H, qd, 6.4, 1.6) | 80.7 | 4.88 (1H, qd, 6.8, 1.6) | 80.9 | 4.87 (1H, qd, 6.8, 1.2) |
4 | 62.3 | 4.66 (1H, dd, 6.8, 1.6) | 63.2 | 4.77 (1H, dd, 5.2, 1.6) | 63.6 | 4.67 (1H, dd, 5.6, 1.2) |
5 | 124.7 | – | 125.3 | – | 127.0 | – |
6 | 138.3 | 7.64 (1H, d, 8.8) | 138.3 | 7.66 (1H, d, 8.8) | 137.1 | 7.45 (1H, d, 8.4) |
7 | 117.3 | 6.99 (1H, d, 8.8) | 117.0 | 7.03 (1H, d, 8.8) | 116.7 | 6.92 (1H, d, 8.4) |
8 | 161.1 | – | 160.6 | – | 158.8 | – |
9 | 16.6 | 1.45 (3H, d, 6.4) | 17.4 | 1.16 (3H, d, 6.8) | 16.7 | 1.16 (3H, d, 6.8) |
10 | 62.2 | 5.09 (1H, d, 12.4) | 62.0 | 5.07 (1H, d, 12.4) | 17.6 | 2.29 (3H, s) |
5.17 (1H, d, 12.4) | 5.20 (1H, d, 12.4) | |||||
11 | 170.8 | – | 170.2 | |||
12 | 21.2 | 2.04 (3H, s) | 20.7 | 2.03 (3H, s) | ||
4a | 141.3 | – | 138.9 | – | 138.6 | |
8a | 108.2 | – | 107.4 | – | 107.1 | |
OH-4 | 5.70 (1H, d, 7.2) | 5.96 (1H, d, 5.2) | – | 5.82 (1H, d, 5.2) | ||
OH-8 | 11.20 (1H, s) | 11.19 (1H, s) | – | 10.9 (1H, s) |