Table 3.
NMR data of ferulic acid 4-O-glucosyl-6’-O-sulphate (compound 5) in MeOD.
| Feruloyl | Glucose | ||||||
|---|---|---|---|---|---|---|---|
| No. | 13C | 1H | HMBC, H→C | No. | 13C | 1H | |
| 1 | 130.73 | – | – | 1’* | 102.34 | 4.94, d (3.5 Hz) | |
| 2 | 112.37 | 7.22, d (1.2 Hz) | 1, 3 | 2’ | 74.8 | 3.52, dd (3.5, 8.4 Hz) | |
| 3 | 150.98 | – | – | 3’ | 71.27 | 3.42, dd (7.6, 8.4 Hz) | |
| OCH3 | 56.8 | 3.82, 3H s | 3 | 4’ | 77.58 | 3.48, dd (7.5, 7.6 Hz) | |
| 4 | 149.8 | – | – | 5’ | 71.27 | 3.68, dd (5.9, 7.5 Hz) | |
| 5 | 116.3 | 6.69, d (7.9 Hz) | 6 | 6’ | 68.15 | 4.13, dd (5.9, 11.1 Hz), | |
| 6 | 130.95 | 7.03, dd (1.2, 7.9 Hz) | 1 | 4.36, d (11.1 Hz) | |||
| 7 | 145.13 | 7.56, d (15.8 Hz) | 2, 8, 9 | ||||
| 8 | 119.3 | 6.40, d (15.8 Hz) | 1 | ||||
| 9 | 171.2 | – | – | ||||
*HMBC coupling observed from the proton on the anomeric 1’ to position 4 of the feruloyl moiety.