Table 1 1H and 13C NMR analyses of aesculin transglycosylation product.
Aesculin | 3-O-β-d-glycosyl aesculin | |||
|---|---|---|---|---|
H | C | H | C | |
H, C-aromatic | ||||
1 | — | 160.7 | — | 162.3 |
2 | 6.25 | 111.5 | 6.11 | 108.0 |
3 | 7.87 | 144.3 | 7.87 | 146.4 |
4 | — | 110.8 | — | 106.8 |
5 | — | 148.5 | — | 147.0 |
6 | 7.42 | 102.6 | 7.20 | 102.9 |
7 | — | 150.3 | — | 152.8 |
8 | — | 142.8 | — | 146.4 |
9 | 6.85 | 112.4 | 6.62 | 113.3 |
H, C-glucose | ||||
1′ | 5.03 | 101.8 | 5.04 | 101.6 |
2′ | 3.56 | 74.1 | 3.57 | 75.7 |
3′ | 3.76 | 77.2 | 3.76 | 84.0 |
4′ | 3.86 | 70.6 | 3.87 | 69.8 |
5′ | 3.48 | 76.8 | 3.48 | 76.2 |
6′ | 3.80 | 61.8 | 3.82 | 60.9 |
3.95 | 3.96 | |||
1″ | 5.06 (d, J = 7.6 Hz) | 104.9 | ||
2″ | 3.53 | 73.7 | ||
3″ | 3.66 | 76.2 | ||
4″ | 3.42 | 72.9 | ||
5″ | 3.68 | 76.0 | ||
6″ | 3.77 | 60.8 | ||
3.85 | ||||
