Table 2.
1H-NMR and 13C-NMR (DMSO-d6, 500 and 125 MHz) for the isolated compounds.
| Compound I (GINK) | Compound II (SOTE) | |||
|---|---|---|---|---|
| δ-H | δ-C | δ-H | δ-C | |
| 2 | 163.7 | 164.2 | ||
| 3 | 6.92 (1H, s) | 103.1 | 6.80 (1H, s) | 102.8 |
| 4 | 181.9 | 181.9 | ||
| 5 | 161.5 | 161.1 | ||
| 6 | 6.19 (1H, d, J = 1.5 Hz) | 98.1 | 6.34 (1H, d, J = 2.5 Hz) | 98.1 |
| 7 | 165.1 | 163.4 | ||
| 8 | 6.49 (1H, d, J = 1.5) | 92.7 | 6.77 (1H, d, J = 2.5) | 92.6 |
| 9 | 157.3 | 157.5 | ||
| 10 | 104.7 | 102.8 | ||
| 1′ | 122.3 | 120.9 | ||
| 2′ | 8.06 (1H, d, J = 2.5) | 128.2 | 8.10 (1H, d, J = 2.5) | 127.6 |
| 3′ | 121. 7 | 121.5 | ||
| 4′ | 160.6 | 160.5 | ||
| 5′ | 7.33 (1H, d, J = 8.5) | 111.7 | 6.98 (1H, d, J = 9) | 117.0 |
| 6′ | 8.18 (1H, dd, J = 2.5, 8.5) | 130.9 | 8.00 (1H, dd, J = 2.5, 9) | 131.5 |
| 2″ | 163.7 | 164.4 | ||
| 3″ | 6.78 (1H, s) | 102.6 | 6.88 (1H, s) | 102.5 |
| 4″ | 182.1 | 182.1 | ||
| 5″ | 160.4 | 160.9 | ||
| 6″ | 6.38 (1H, s) | 98.2 | 6.33 (1H, s) | 99.4 |
| 7″ | 161.6 | 161.9 | ||
| 8″ | 103.7 | 104.7 | ||
| 9″ | 154.5 | 154.5 | ||
| 10″ | 103.6 | 103.1 | ||
| 1″′ | 120.9 | 120.9 | ||
| 2″′ | 7.56 (2H, d, J = 7.5) | 128.0 | 7.57 (2H, d, J = 9) | 128.1 |
| 3″′ | 6.81 (2H, d, J = 7.5) | 115.8 | 6.70 (2H, d, J = 9) | 115.7 |
| 4″′ | 161.1 | 160.2 | ||
| 5″′ | 6.81 (2H, d, J = 7.5) | 115.8 | 7.57 (2H, d, J = 9) | 115.7 |
| 6″′ | 7.56 (2H, d, J = 7.5) | 128.0 | 6.70 (2H, d, J = 9) | 128.1 |
| OCH3 | 3.77, 3.81 | 56.1, 55.9 | 3.79 | 56.1 |