Table 3. 1H NMR and 13C NMR data of avicennone D (1) and avicennone E (2) (CD3OD)a.
| atom number | 1 | 2 | ||
|---|---|---|---|---|
| δC (mult.) | δH (mult. J in Hz) | δC (mult.) | δH (mult. J in Hz) | |
| 2 | 150.29 (d) | 7.96 (d, 1.9) | 150.82 (d) | 7.98 (d, 1.9) |
| 3 | 109.17 (d) | 6.99 (d, 1.9) | 109.40 (d) | 6.99 (d, 1.9) |
| 3a | 131.32 (s) | 132.07 (d) | ||
| 4 | 181.93 (s) | 181.24 (t) | ||
| 4a | 137.12 (s) | 126.56 (s) | ||
| 5 | 114.44 (d) | 7.47 (d, 2.6) | 130.68 (d) | 8.03 (d, 8.5) |
| 6 | 164.73 (s) | 121.10 (d) | 7.12 (dd, 8.5, 2.6) | |
| 7 | 121.2 (d) | 7.10 (dd, 8.5, 2.6) | 164.78 (s) | |
| 8 | 130.55 (d) | 8.01 (d, 8.5) | 114.14 (d) | 7.49 (d, 2.6) |
| 8a | 125.73 (s) | 136.29 (s) | ||
| 9 | 174.42 (s) | 174.81 (s) | ||
| 9a | 154.56 (s) | 154.06 (s) | ||
a
Reference to residual solvent CD3OD signals at δH 3.3 and δC 49.0 and measured at 25°C, 600 MHz for 1H and 150 MHz for 13C. 13C multiplicities were assigned from DEPT experiments.