Table 2. 1H (600 MHz) and 13C (150 MHz) NMR spectroscopic data (in CD3OD) of compounds 2 and 3.
| Moiety | Position | 2 | 3 | ||
| δ C | δ H(J in Hz) | δ C | δ H(J in Hz) | ||
| Aglycone moiety | 1 | 152.7 | 141.0 | ||
| 2 | 104.2 | 6.70 s | 152.3 | ||
| 3 | 149.1a | 101.9 | 6.43 d (2.7) | ||
| 4 | 143.3 | 155.1 | |||
| 5 | 116.0b | 6.56 d (8.8) | 107.6 | 6.11 dd (8.7, 2.7) | |
| 6 | 110.2 | 6.55 d (7.4) | 120.7 | 6.93 d (8.7) | |
| 3-OMe | 56.6c | 3.70 s | 56.6 | 3.78 s | |
| Sugar moiety | 1′ | 103.8 | 4.76 d (7.6) | 104.3 | 4.71 d (7.6) |
| 2′ | 75.1 | 3.45-3.50 m | 75.2 | 3.46-3.48 m | |
| 3′ | 78.0 | 3.45-3.50 m | 77.9 | 3.46-3.48 m | |
| 4′ | 72.2 | 3.45-3.50 m | 72.2 | 3.41 m | |
| 5′ | 75.8 | 3.73 m | 75.8 | 3.66 m | |
| 6′ | 65.3 | 4.70 dd (11.8, 1.9) | 65.2 | 4.66 dd (11.7, 2.1) | |
| 4.37 dd (11.8, 7.4) | 4.36 dd (11.7, 7.4) | ||||
| Vanilloyl moiety | 1″ | 122.1 | 122.5 | ||
| 2″ | 113.7 | 7.53 d (1.7) | 113.8 | 7.53 d (1.8) | |
| 3″ | 149.3a | 148.9 | |||
| 4″ | 153.9 | 152.3 | |||
| 5″ | 116.3b | 6.85 d (8.3) | 116.1 | 6.86 d (8.2) | |
| 6″ | 125.5 | 7.57 dd (8.3, 1.8) | 125.4 | 7.55 dd (8.3, 1.8) | |
| 7″ | 168.1 | 168.0 | |||
| 3″-OMe | 56.4c | 3.85 s | 56.6 | 3.86 s | |
a to c
Assignments may be interchanged within each column.