Table 3.
1H and 13C-NMR data for compound 5 in DMSO-d6 (500 MHz for 1H and 125 MHz for 13C).
| δC | δH (J in Hz) | δC | δH (J in Hz) | ||
|---|---|---|---|---|---|
| 2 | 156.2 | — | 3'' | 72.9 | 3.43 (1H, dd, 3.0, 9.5) |
| 3 | 133.4 | — | 4'' | 67.8 | 3.68 (1H, m, overlapped) |
| 4 | 177.2 | — | 5'' | 73.2 | 3.64 (1H, m, overlapped) |
| 5 | 161.1 | — | 6'' | 65.1 | 3.33 (1H, dd, 5.5, 9.5) |
| 6 | 98.6 | 6.20 (1H, br. s) | 3.67 (1H, m, overlapped) | ||
| 7 | 164.3 | — | 1''' | 96.8 | 4.62 (1H, d, 1.0) |
| 8 | 93.5 | 6.39 (1H, br. s) | 2''' | 72.6 | 4.93 (1H, dd, 1.0, 3.0) |
| 9 | 156.2 | — | 3''' | 68.6 | 3.65 (1H, m, overlapped) |
| 10 | 103.7 | — | 4''' | 72.4 | 3.28 (1H, dd, 9.0, 9.5) |
| 1' | 121.0 | — | 5''' | 68.4 | 3.54 (1H, m) |
| 2' | 115.9 | 7.54 (1H, d, 2.0) | 6''' | 18.0 | 1.16 (3H, d, 6.0) |
| 3' | 144.7 | — | 1'''' | 119.2 | — |
| 4' | 148.4 | — | 2'''',6'''' | 107.0 | 7.20 (2H, s) |
| 5' | 115.0 | 6.80 (1H, d, 8.5) | 3'''', 5'''' | 147.4 | — |
| 6' | 121.7 | 7.63 (1H, d, 2.0, 8.5) | 4'''' | 140.7 | — |
| 5-OH | 12.58 (1H, br. s) | 7'''' | 164.7 | ||
| 1'' | 101.9 | 5.35 (1H, d, 8.0) | -OCH3 | 55.9 | 3.81 (6H, s) |
| 2'' | 71.0 | 3.60 (1H, dd, 8.0, 9.0) |