Table 1.
13C and 1H NMR spectral data for neurymenolides A-B (1-2) (500 MHz; in CDCl3).
| 1 |
2 |
|||
|---|---|---|---|---|
| no. | δ 13C | δ 1H(JH,H) | δ 13C | δ 1H(JH,H) |
| 1 | 165.1 | - | 165.0 | - |
| 2 | 103.9 | - | 103.8 | - |
| 3 | 164.7 | - | 164.3 | - |
| 4 | 101.4 | 5.81s | 101.2 | 5.77s |
| 5 | 165.1 | - | 165.0 | - |
| 6 | 33.5 | 2.30ddd (14, 11, 3.3), 2.61ddd (14, 10,3.1) | 33.3 | 2.26ddd (15, 11, 3.2), 2.63ddd (15, 113.4) |
| 7 | 25.6 | 1.57m, 1.86m | 24.6 | 1.49m, 1.82m |
| 8 | 26.9 | 1.24m, 1.34m | 25.2 | 1.15m, 1.22m |
| 9 | 27.7 | 1.18m, 1.35m | 27.1 | 1.08m, 1.25m |
| 10 | 27.1 | 1.07m, 1.15m | 29.7 | 1.24m, 1.30m |
| 11 | 26.6 | 1.76m, 1.83m | 28.7 | 1.18m, 1.23m |
| 12 | 131.0 | 5.23m | 26.7 | 1.20m, 1.27m |
| 13 | 126.6 | 5.21m | 27.6 | 1.88m, 2.01m |
| 14 | 27.0 | 2.52br d (17), 2.85m | 131.3 | 5.34m |
| 15 | 135.2 | 5.65m | 126.4 | 5.32m |
| 16 | 127.0 | 5.64m | 26.8 | 2.63m, 2.94m |
| 17 | 36.5 | 4.55br s | 134.9 | 5.60m |
| 18 | 129.4 | 5.61m | 127.0 | 5.67m |
| 19 | 129.9 | 5.61m | 36.2 | 4.61br s |
| 20 | 30.0 | 2.77m | 129.9 | 5.62m |
| 21 | 125.9 | 5.30dt(11, 7.2) | 130.4 | 5.62m |
| 22 | 132.9 | 5.42dt(11, 7.2) | 35.3 | 2.71m |
| 23 | 20.5 | 2.00p (15, 7.4) | 126.8 | 5.33m |
| 24 | 14.2 | 0.93t (7.4) | 133.5 | 5.43m |
| 25 | - | - | 25.5 | 1.99m |
| 26 | - | - | 13.8 | 0.94t (7.5) |
| OH | - | 6.48br s | - | 6.40br s |