Table 4.
1H and 13C-NMR spectroscopic data for compounds 1–4 (500 MHz, MeOD).
| 1 | 2 | 3 | 4 | |||||
|---|---|---|---|---|---|---|---|---|
| δH m (J in Hz) | δ C | δH m (J in Hz) | δ C | δH m (J in Hz) | δ C | δH m (J in Hz) | δ C | |
| 2 | 165.1 | 164.1 | 165.3 | 165.0 | ||||
| 3 | 6.59, s | 102.5 | 6.64, s | 105.3 | 6.76, s | 104.1 | 6.67, s | 102.4 |
| 4 | 182.8 | 182.8 | 182.6 | 182.9 | ||||
| 5 | 150.9 | 153.4 | 151.8 | 150.6 | ||||
| 6 | 130.0 | 132.7 | 131.7 | 130.0 | ||||
| 7 | 154.4 | 159.1 | 159.4 | 154.4 | ||||
| 8 | 6.81, s | 90.4 | 6.61, s | 91.0 | 6.89, s | 92.7 | 6.85, s | 90.6 |
| 9 | 150.6 | 152.7 | 154.9 | 150.6 | ||||
| 10 | 105.2 | 106.2 | 105.4 | 105.2 | ||||
| 1’ | 121.4 | 126.5 | 122.0 | 122.4 | ||||
| 2’ | 7.12, s | 101.7 | 7.12, s | 103.9 | 7.14, d (8.5) | 111.1 | 7.52, d (2.13) | 109.2 |
| 3’ | 138.5 | 153.7 | 152.5 | 150.7 | ||||
| 4’ | 148.5 | 141.5 | 151.0 | 148.1 | ||||
| 5’ | 145.7 | 153.7 | 7.55, d (2.2) | 108.8 | 6.94, d (8.3) | 115.4 | ||
| 6’ | 7.12, s | 107.3 | 7.12, s | 103.9 | 7.68, dd (8.5–2.2) | 119.9 | 7.54, dd (8.3–2.13) | 120.4 |
| 6-OCH3 | 4.00, s | 61.1 | 3.85, s | 61.1 | ||||
| 7-OCH3 | 3.99, s | 55.5 | 3.93, s | 56,5 | 4.00, s | 57.0 | 4.02, s | 55.6 |
| 3’-OCH3 | 3.98, s | 56,5 | 3.93, s | 56.8 | ||||
| 4’-OCH3 | 3.95, s | 55.5 | 3.94, s | 60.9 | 3.96, s | 56.6 | 3.99, s | 55.3 |
| 5’-OCH3 | 3.98 | 56,5 | ||||||