Table 4.
1H and 13C NMR data of the new compound 40 (in acetone-d6).
| Position | 40 | |
|---|---|---|
| δ H, mult. (J in Hz) | δ C, mult. | |
| 2 | 4.68, d (8.9) | 84.2, CH |
| 3 | 4.21, m | 66.8, CH |
| 4 | a 3.07, dd (16.2, 5.7) | 30.6, CH2 |
| b 2.53, dd (16.2, 9.5) | ||
| 5 | 165.1, qC | |
| 6 | 6.15, s | 93.5, CH |
| 7 | 168.1, qC | |
| 8 | 105.9, qC | |
| 9 | 157.6, qC | |
| 10 | 102.4, qC | |
| 1′ | 130.7, qC | |
| 2′ | 7.11, d (1.4) | 116.2, CH |
| 3′ | 146.6, qC | |
| 4′ | 146.2, qC | |
| 5′ | 6.91, d (8.4) | 116.0, CH |
| 6′ | 6.96, dd (8.4, 1.4) | 121.3, CH |
| 1′′ | 136.2, qC | |
| 2′′ | 7.28, m | 129.2, CH |
| 3′′ | 7.16, m | 129.7, CH |
| 4′′ | 7.28, m | 130.8, CH |
| 5′′ | 7.16, m | 129.7, CH |
| 6′′ | 7.28, m | 129.2, CH |
| OH-7 | 14.49, s | |
| α | 7.63, d (15.7) | 143.1, CH |
| β | 8,06, d (15.7) | 128.4, CH |
| C=O | 193.2, qC | |
| OCH3-5 | 3.92, s | 56.5, CH3 |