Table 1.
1H-NMR (400 MHz) and 13C-NMR (100 MHz) data for compound 1 and 2 in DMSO-d6.
| Position | Compound 1 | Compound 2 | ||
|---|---|---|---|---|
| δH | δC | δH | δC | |
| 2 | 163.5 | 163.2 | ||
| 3 | 6.83 (s) | 103.4 | 7.03 (s) | 104.0 |
| 4 | 182.0 | 182.1 | ||
| 5 | 157.1 | 157.2 | ||
| 6 | 110.4 | 110.4 | ||
| 7 | 162.5 | 162.6 | ||
| 8 | 6.58 (s) | 94.8 | 6.63 (s) | 95.0 |
| 9 | 156.1 | 156.2 | ||
| 10 | 103.2 | 103.5 | ||
| 1′ | 121.2 | 123.9 | ||
| 2′ | 7.79 (d, J = 1.8 Hz) | 114.4 | 7.63 (d, J = 2.4 Hz) | 110.2 |
| 3′ | 145.6 | 149.8 | ||
| 4′ | 150.7 | 149.2 | ||
| 5′ | 6.96 (d, J = 8.4 Hz) | 121.9 | 7.25 (d, J = 8.8 Hz) | 115.0 |
| 6′ | 7.65 (dd, J = 1.8, 8.4 Hz) | 116.4 | 7.66 (dd, J = 2.4, 8.8 Hz) | 120.5 |
| boivinose | ||||
| 1′′ | 5.30 (dd, J = 2.7, 12.3 Hz) | 67.3 | 5.34 (dd, J = 2.8, 12.4 Hz) | 67.4 |
| 2′′ | 1.48 (d, J = 13.8 Hz) | 31.4 | 1.50 (d, J = 14.0 Hz) | 31.4 |
| 2.19 (ddd, J = 2.7, 4.2, 13.8 Hz) | 2.21 (ddd, J = 2.4, 3.2, 14.0 Hz) | |||
| 3′′ | 3.83 (br.s) | 66.5 | 3.85 (br.s) | 66.5 |
| 4′′ | 3.23 (br.s) | 68.6 | 3.25 (br.s) | 68.7 |
| 5′′ | 4.02 (q, J = 6.6 Hz) | 70.6 | 3.90 (q, J = 6.0 Hz) | 70.6 |
| 6′′ | 1.14 (d, J = 6.6 Hz) | 17.1 | 1.16 (d, J = 6.0 Hz) | 17.1 |
| glucose | ||||
| 1′′′ | 4.89 (d, J = 7.2 Hz) | 101.9 | 5.08 (d, J = 7.2 Hz) | 99.5 |
| 2′′′ | 3.32 (m) | 73.3 | 3.33 (m) | 73.1 |
| 3′′′ | 3.30 (m) | 75.9 | 3.30 (m) | 76.8 |
| 4′′′ | 3.15 (m) | 70.1 | 3.17 (m) | 69.6 |
| 5′′′ | 3.47 (m) | 77.4 | 3.36 (m) | 77.1 |
| 6′′′ | 3.77 (m) | 60.9 | 3.47 (m) | 60.6 |
| 3.48 (m) | 3.68 (m) | |||
| -OCH3 | 3.90 (s) | 56 | ||