Table 1.
NMR data of compound 23 in CDCl3 at 300 K (1H at 500 MHz, 13C at 125 MHz).
| Compound 23 | |||
|---|---|---|---|
| Atom | δH (J in Hz) | δC | HMBC JH→C |
| 1 | 2.56 (t, 8.6, 1H) | 57.6 | 5, 9, 14 |
| 2 | 2.01 (m, 1H) | 27.1 | 4, 5 |
| 1.94 (m, 1H) | |||
| 3 | 2.16 (m, 1H) | 32.1 | 1, 5, 15 |
| 1.47 (m, 1H) | |||
| 4 | 1.90 (m, 1H) | 46.1 | 1, 2, 5, 15 |
| 5 | _ | 87.2 | |
| 6 | 2.30 (brd, 9.8, 1H) | 49.9 | 5, 7, 8, 11, 12, 13 |
| 7 | 2.03 (m, 1H) | 31.4 | 6 |
| 1.52 (m, 1H) | |||
| 8 | 1.94 (m, 1H) | 29.8 | 6 |
| 1.44 (m, 1H) | |||
| 9 | 2.52 (brdt, 13.2, 4.8, 1H) | 40.9 | 1, 7, 8, 10, 14 |
| 2.01 (m, 1H) | |||
| 10 | _ | 151.1 | |
| 11 | _ | 150.1 | |
| 12 | 1.82 (brs, 3H) | 23.7 | 6, 11,13 |
| 13 | 4.85 (brs, 1H) | 112.5 | 6, 11, 12 |
| 4.78 (brs, 1H) | |||
| 14 | 4.93 (brs, 1H) 4.92 (brs, 1H) |
110.2 | 1, 5, 9, 10 |
| 15 | 0.91 (d, 7.1, 3H) | 16.0 | 3, 4, 5 |
s: singlet, d: doublet, t: triplet, m: multiplet, br: broad.