Table 2.
1H and 13C NMR data for compounds 4–6.
| NO. | 4 c | 5 d | 6 c | |||
|---|---|---|---|---|---|---|
| δH (J in Hz) | δC | δH (J in Hz) | δC | δH (J in Hz) | δC | |
| 1 | 12.03, s | |||||
| 2 | 8.41, s | 134.8 | 152.2 | 153.0 | ||
| 3 | 114.1 | 157.2 | 8.44, d (4.1) | 143.3 | ||
| 3a | 125.9 | |||||
| 4 | 8.21, dd (2.0, 6.6) | 121.4 | ||||
| 5 | 7.19, m | 121.9 | 153.9 | 153.0 | ||
| 6 | 7.23, m | 122.9 | 8.25, s | 141.7 | 8.44, d (4.1) | 143.3 |
| 7 | 7.49, dd (1.7, 6.8) | 112.2 | 3.10, t (7.2) | 29.3 | 2.96, t (7.3) | 29.2 |
| 7a | 136.3 | |||||
| 8 | 195.5 | 2.79, t (7.2) | 32.9 | 2.67, t (7.3) | 32.2 | |
| 9 | 4.69, t (4.5) | 75.8 | 177.1 | 173.8 | ||
| 10 | 3.63, dd (5.5, 11.1) 3.71, dd (4.5, 11.1) |
65.3 | 3.04, t (7.2) | 30.7 | 2.96, t (7.3) | 29.2 |
| 11 | 2.76, t (7.2) | 33.9 | 2.67, t (7.3) | 32.2 | ||
| 12 | 176.9 | 173.8 | ||||
| 13 | 2.88, q (7.5) | 28.3 | ||||
| 14 | 1.29, t (7.5) | 13.1 | ||||
c Measured in DMSO-d6 on a Bruker AM-400 spectrometer; d measured in CD3OD on a Bruker DRX-600 spectrometer.