Table 2.
Chemical shifts (1H and 13C) of the α- and β-punicalagins in CD3OD isolated from T. catappa.
| Position | α-punicalagin | β-punicalagin | ||||
|---|---|---|---|---|---|---|
| δ (1H) | Multiplicity (Hz) | δ (13C) | δ (1H) | Multiplicity (Hz) | δ (13C) | |
| 1 | 5.08 | d(3.5) | 89.87 | 4.66 | d(8.0) | 93.77 |
| 2 | 4.87 | dd(3.0, 8.0) | 73.53 | 4.62 | dd(3.0, 8.1) | 75.48 |
| 3 | 5.20 | t(9.3) | 76.08 | 4.92 | t(10.0) | 78.78 |
| 4 | 4.78 | t(9.0) | 70.23 | 4.85 | t(10.0) | 74.88 |
| 5 | 3.23 | t(9.0) | 66.33 | 2.57 | dd(9.9, 11.0) | 71.58 |
| 6a | 2.10 | d(9.9) | 63.63 | 4.05 | d(9.9) | 63.03 |
| 6b | 4.09 | dd(7.0, 7.0) | 63.63 | 4.10 | d(7.8) | 63.03 |
| 9 | 6.52 | s | 105.46 | 6.54 | s | 106.21 |
| 18 | 6.66 | s | 107.41 | 6.68 | s | 106.21 |
| 23 | 6.73 | s | 108.76 | 6.77 | s | 109.51 |
| 46 | 6.94 | s | 110.11 | 6.97 | s | 110.71 |