Table 1.
1H and 13C-NMR spectral data for compounds 1 and 2 from Corymbia torelliana.
| Position | Compound 1 (d6 DMSO) | Compound 2 (CD3OD) | ||||
|---|---|---|---|---|---|---|
| 13C | 1H | HMBC | 13C | 1H | HMBC | |
| 2 | 82.7 (CH) | 5.04 (d,11.4) | 3,4,8a,1',2' | 80.4 (CH) | 5.27 (dd, 12.6, 3.0) | 1',2',6' |
| 3 | 71.3 (CH) | 4.56 (d,11.4) | 2,4,1' | 44.1(CH2) | A 3.05 (dd,17.0, 12.6) | 2,4,1' |
| B 2.69 (dd, 17.0, 3.0) | 4 | |||||
| 4 | 197.2 (C) | 197.2 (C) | ||||
| 4a | 100.1 (C) | 103.3 (C) | ||||
| 5 | 163.1 (C) | 165.1 (C) | ||||
| 5-OH | 11.9 br s | |||||
| 6 | 96.0 (CH) | 5.89 (d, 1.8 Hz) | 4a,5,7,8 | 97.6 (CH) | 5.88 (d, 1.7) | 4a,7 |
| 6-Me | ||||||
| 7 | 167.1 (C) | 169.0 (C) | ||||
| 7-Me | ||||||
| 8 | 95.0 (CH) | 5.83 (d,1.8 Hz) | 4a,6,7,8a | 96.5 (CH) | 5.86 (d, 1.7) | 4a,7,8a |
| 8a | 162.4 (C) | 164.6 (C) | ||||
| 1' | 127.5 (C) | 132.0 (C) | ||||
| 2' | 114.7 (CH) | 6.91 br s | 2,1',3',4',6' | |||
| 3' | 116.3 (CH) | 6.78 s | 1' | |||
| 4' | 157.6 (C) | 146.6 (C) | ||||
| 5' | 143.2 (C) | |||||
| 6' | 119.3 (CH) | 6.78 s | 2,2',4' | |||
| 2'/6' | 129.3 (CH) | 7.31 (d, 8.25) | 2,1',3'/5',4' | |||
| 3'/5' | 114.8 (CH) | 6.78 (d, 8.25) | 1',2'/6',4' | |||