1H and 13C NMR spectral data of 8, (−)-roseostachenone and 13-epi-(−)-roseostachenone.
| No. | 8 | (−)-Roseostachenone | 13-epi-(−)-Roseostachenone | ||||
|---|---|---|---|---|---|---|---|
| δ H (multi, J in Hz) (acetone-d6, 500 MHz) | δ C (acetone-d6, 125 MHz) | δ H (multi, J in Hz) (CDCl3, 500 MHz) | δ H (multi, J in Hz) (CDCl3, 200 MHz) | δ C (CDCl3, 50 MHz) | δ H (multi, J in Hz) (CDCl3, 200 MHz) | δ C (CDCl3, 50 MHz) | |
| 1 | 2.66 (dd, 18.5, 7.0), 2.43 (d, 18.0) | 35.7 | 2.69 (dd, 18.5, 6.5), 2.50 (d, 18.5) | 2.28 (m) | 34.8 | 2.28 (m) | 34.3 |
| 2 | 198.8 | 200.4 | 200.5 | ||||
| 3 | 5.56 (d, 1.0) | 129.1 | 5.84 (brs) | 5.67 (m) | 125.4 | 5.66 (d, 1.2) | 127.4 |
| 4 | 169.4 | 172.5 | 172.6 | ||||
| 5 | 40.1 | 39.7 | 39.7 | ||||
| 6 | 37.5 | 34.8 | 35.5 | ||||
| 7 | 29.1 | 26.8 | 26.8 | ||||
| 8 | 37.4 | 35.8 | 35.8 | ||||
| 9 | 40.3 | 38.3 | 38.3 | ||||
| 10 | 1.90 (m) | 47.9 | 1.83 (d, 6.5) | 1.87 (m) | 45.5 | 45.5 | |
| 11 | 31.3 | 31.1 | 31.1 | ||||
| 12 | 35.8 | 35.5 | 34.7 | ||||
| 13 | 72.8 | 73.0 | 73.0 | ||||
| 14 | 5.93 (dd, 17.0, 10.5) | 147.1 | 5.87 (dd, 10.5, 17.5) | 5.83 (dd, 10.70, 17.33) | 144.9 | 5.82 (dd, 17.4, 10.7) | 144.8 |
| 15 | 5.21 (dd, 17.5, 2.0), 4.98 (dd, 11.0, 2.0) | 111.5 | 5.09 (d, 11.0), 5.20 (d, 16.5) | 5.03 (dd, 10.7, 1.0), 5.16 (dd, 17.3, 1.0) | 112.0 | 5.14 (dd, 17.4, 1.3), 5.03 (dd, 10.7, 1.3) | 111.9 |
| 16 | 1.24 (s) | 28.5 | 1.22 (s) | 1.23 (s) | 27.6 | 1.22 (s) | 27.7 |
| 17 | 0.78 (d, 7.0) | 16.3 | 0.77 (d, 7.0) | 0.77 (d, 6.5) | 15.8 | 0.79 (d, 6.8) | 15.6 |
| 18 | 1.96 (d, 1.0) | 20.5 | 1.94 (d, 1.5) | 1.84 (d, 1.0) | 18.9 | 1.83 (d, 1.1) | 18.9 |
| 19 | 1.25 (s) | 32.3 | 1.25 (s) | 1.06 (s) | 18.3 | 1.06 (s) | 18.2 |
| 20 | 0.56 (s) | 19.6 | 0.58 (s) | 0.76 (s) | 18.0 | 0.76 (s) | 17.9 |