Table 1.
Comparison of 1H-NMR (600 MHz) and 13C-NMR (150 MHz) data in CD3OD of synthetic and natural psammalin F (1).
| Position | Synthetic psammaplin F | Natural psammaplin F[1] | ||
|---|---|---|---|---|
| H (δ) | C (δ, mult, J in Hz) | H (δ) | C (δ, mult, J in Hz) | |
| 2 | 2.85 (t, 6.0) | 38.7 | 2.84 (t, 6.0) | 38.6 |
| 2’ | 2.85 (t, 6.0) | 38.2 | 2.84 (t, 6.0) | 37.9 |
| 3 | 3.55 (t, 6.0) | 39.8 | 3.54 (t, 6.0) | 39.8 |
| 3’ | 3.55 (t, 6.0) | 40.0 | 3.54 (t, 6.0) | 40.1 |
| 5 | 166.0 | 166.0 | ||
| 5’ | 161.8 | 161.9 | ||
| 6 | 153.2 | 153.3 | ||
| 6’ | 159.0 | 159.2 | ||
| 7 | 3.80 (s) | 28.7 | 3.78 (s) | 28.8 |
| 8 | 130.6 | 130.7 | ||
| 9 | 7.34 (d, 1.8) | 134.5 | 7.35 (d, 2.0) | 134.6 |
| 10 | 110.5 | 110.6 | ||
| 11 | 153.7 | 153.9 | ||
| 12 | 6.77(d, 8.4) | 117.0 | 6.75 (d, 8.0) | 117.2 |
| 13 | 7.07 (dd, 1.8, 8.4) | 130.4 | 7.05 (dd, 2.0, 8.0) | 130.5 |