Table 1.
NMR data of compound 1 (C 5 D 5 N, 400 MHZ)
| Position | δ H (multi, J = Hz) | δ C |
|---|---|---|
| 1 | 7.31, s | 105.3 (CH) |
| 2 | - | 148.8 (C) |
| 3 | - | 148.2 (C) |
| 4 | 7.89, s | 101.7 (CH) |
| 4a | - | 128.2 (C) |
| 4b | - | 140.1 (C) |
| 5 | - | - |
| 6 | 6.54, s | 80.0 (CH) |
| 6a | - | 124.3 (C) |
| 7 | - | 146.9 (C) |
| 8 | - | 150.6 (C) |
| 9 | 7.41, d (8.4) | 118.3 (CH) |
| 10 | 7.82, d (8.4) | 120.4 (CH) |
| 10a | - | 129.1 (C) |
| 10b | - | 124.3 (C) |
| 11 | 8.02, d (8.5) | 121.0 (CH) |
| 12 | 7.62, d (8.5) | 124.2 (CH) |
| 12a | - | 131.7 (C) |
| OCH2O | 6.04, d (1.2) | 102.0 (CH2) |
| 6.08, d (1.2) | ||
| NCH3 | 2.77, s | 40.6 (CH3) |
| OCH3 | 4.24, s | 62.2 (CH3) |
δH, and δC are chemical shifts of protons and carbons, respectively in ppm.