Table 1.
1H-NMR and 13C-NMR spectral data of (+)-kunstlerone (1) in CDCl3 (δ in ppm, J in Hz).
| Position | 1H | 13C |
|---|---|---|
| C-1′ | - | 132.12 |
| C-2′ | 6.80, br s | 107.25 |
| C-3′ | - | 147.97 |
| C-4′ | - | 146.39 |
| C-5′ | 6.76, d, (8.1) | 108.32 |
| C-6′ | 6.71, br d, (8.1) | 119.69 |
| C-1 | - | 46.01 |
| C-2 | 4.32, s | 79.11 |
| C-3 | - | 159.47 |
| C-4 | - | 138.46 |
| C-5 | - | 193.10 |
| C-6 | 2.90, d, (8.5) | 50.16 |
| C-7 | 3.21, dd, (7.8, 8.5) |
44.58 |
| C-8 | 2.83, m | 49.63 |
| C-9 | 3.72, dd, (9.5, 3.9) 3.90, d, (9.5) |
70.84 |
| C-10 | 2.38, m | 41.76 |
| C-11 | 5.66, m | 136.51 |
| C-12 | 5.13, d, (Jcis = 11.0), 5.11, d, (Jtrans = 16.5) |
119.41 |
| OCH2O | 5.91, s | 101.08 |
| 3-OCH3 | 4.08, s | 58.46 |
| 4-OCH3 | 3.69, s | 60.57 |