Table 1.
1H and 13C NMR spectroscopic data for compounds 1 and 2 in CD3OD.
| no. | 1 |
2 |
||
|---|---|---|---|---|
| δC | δH mult. J (Hz) | δC | δH multi. J (Hz) | |
| 1 | 171.3 | 171.1 | ||
| 2 | 126.9 | 126.6 | ||
| 3 | 137.8 | 7.28 d (10.6) | 137.0 | 7.23d (11.4) |
| 4 | 122.6 | 6.63 t dd (11.3, 15.2) | 138.8 | 6.70 dd (11.3, 15.2) |
| 5 | 144.0 | 6.66d (15.1) | 145.7 | 6.25 d (15.2) |
| 6 | 134.5 | 75.2 | ||
| 7 | 137.6 | 6.26 s | 81.7 | 4.06 s |
| 8 | 136.3 | 141.0 | ||
| 9 | 125.7 | 6.11 s | 120.7 | 5.99 s |
| 10 | 132.9 | 130.1 | ||
| 11 | 136.3 | 6.86 m | 138.8 | 6.94 m |
| 12 | 14.3 | 1.79 d (7.2) | 14.2 | 1.76 d (7.1) |
| 13 | 11.4 | 1.99 s | 11.2 | 1.95 s |
| 15 | 12.75 | 2.11 s | 23.5 | 1.36 s |
| 16 | 17.5 | 1.76 s | 14.1 | 1.59 s |
| 17 | 170.9 | 168.0 | ||
| 19 | 50.4 | 3.73 s | ||