Table 1.
1H NMR and 13C NMR data of F-12 in ppm (multiplicity, J in Hz).a
| Pos. | CDCl3 |
Pos. | C6D6 |
||
|---|---|---|---|---|---|
| 1H NMR | 13C NMR | 1H NMR | 13C NMR | ||
| 2 | 2.97 (d, J = 6.8) | 60.7 | 2 | 2.83 (d, J = 6.5) | 59.2 |
| 3 | 5.90 (dt, J = 6.8, 15.8) | 139.4 | 3 | 5.90 (dt, J = 6.6, 16.0) | 139.4 |
| 4 | 5.59 (d, J = 15.8) | 114.9 | 4 | 5.59 (d, J = 16.0) | 112.9 |
| 5 | – | 78.5 | 5 | – | 77.8 |
| 6 | – | 99.4 | 6 | – | 98.5 |
| 7 | – | 29.0 | 7 | – | 27.8 |
| 8–10 | 1.07 (s, 9H) | 31.7 | 8–10 | 1.20 (s, 9H) | 30.8 |
| 1′ | 3.62 (s, 2H) | 60.5 | 1′ | 3.64 (s, 2H) | 60.1 |
| 2′ | – | 135.4 | 2′ | – | 134.9 |
| 3′ | 7.18 (m) | 129.0 | 3′ | 7.28 (m) | 127.1 |
| 4′ | 7.29 (m) | 127.0 | 4′ | 7.34 (t, J = 7.0) | 125.6 |
| 5′ | 8.32 (d, J = 8.3) | 126.7 | 5′ | 8.32 (d, J = 8.5) | 125.0 |
| 5′a | – | 135.3 | 5′a | – | 134.1 |
| 6′ | 7.64 (d, J = 7.6) | 129.6 | 6′ | 7.66 (d, J = 8.0) | 128.4 |
| 7′ | 7.18 (m) | 125.7 | 7′ | 7.20 (t, J = 7.3) | 125.0 |
| 8′ | 7.29 (m) | 126.8 | 8′ | 7.28 (m) | 125.5 |
| 9′ | 7.56 (d, J = 8.5) | 129.4 | 9′ | 7.59 (d, J = 8.0) | 128.0 |
| 9′a | – | 133.8 | 9′a | – | 132.7 |
| N-CH3 | 1.95 (s, 3H) | 42.6 | N-CH3 | 1.96 (s, 3H) | 41.6 |
a
Assignments were done based on DEPT, COSY, HSQC and HMBC experiments.