Table 5.
1H and 13C NMR spectral data for compounds 3, 4, and 5
| Position | 3
|
4
|
5
|
|||
|---|---|---|---|---|---|---|
| δH | δC | δH | δC | δH | δC | |
| 2 | 6.9, br d | 133.6, d | 7.2, d(7.6) | 130.1, d | 6.9, d(6.8) | 133.2, d |
| 3 | 6.8, br d | 100.9, d | 6.4, d(7.2) | 101.5, d | 6.8, br d | 113.3, d |
| 3a | 148.9, s | 151.9, s | 146.1, s | |||
| 5 | 7.5, br d | 147.2, d | 7.9, d(7.2) | 148.1, d | 7.5, d(6.4) | 146.1, d |
| 6 | 7.3, br d | 113.5, d | 7.7, d(7.2) | 113.6, d | 7.5, d(6.4) | 116.4, d |
| 6a | 136.3, s | 136.4, s | 136.6, s | |||
| 7 | 6.8, br s | 100.3, d | 7.0, s | 98.8, d | 6.8, s | 99.9, d |
| 8 | 157.2, s | 157.9, s | 156.7, s | |||
| 9 | 126.9, s | 124.4, s | 134.7, s | |||
| 9a | 124.0, s | 127.3, s | 124.3, s | |||
| 9b | 117.8, s | 117.6, s | 117.9, s | |||
| NCH3 | 3.8, s | 45.4, q | 4.0, s | 44.8, q | 3.9, s | 45.0, q |
| OCH3 | 3.9, s | 56.8, q | 3.9, s | 56.2, q | 3.9, s | 56.6, q |
| 1′ | 165.4, s | 164.9, s | 164.0, s | |||
| 2′ | 134.9, s | 125.6, s | 123.3, s | |||
| 3′ | 141.9, s | 8.1, d(8) | 130.4, d | 8.2, br d | 133.1, d | |
| 4′ | 7.1, br d | 130.9, d | 7.46, d(8) | 128.3, d | 7.2, br d | 114.5, d |
| 5′ | 7.5, br d | 132.2, d | 149.1, s | 167.8, s | ||
| 6′ | 7.3, br d | 126.3, d | 7.46, d(8) | 128.3, d | 7.2, br d | 114.5, d |
| 7′ | 8.1, d(7.6) | 131.5, d | 8.1, d(8) | 130.4, d | 8.2, br d | 133.1, d |
| 8′ | 2.6, s | 21.8, q | 2.7, q(7.6) | 28.6, t | F | |
| 9′ | 1.3, t(7.6) | 14.3, t | ||||
Measured in CDCl3 at 400 MHz for 1H and 100 MHz for 13C, respectively. J values in Hz.