Table 1.
13C-NMR spectroscopic data for anthracenone dimer glycosides auriculataosides A (1) and B (2) in DMSO-d6
| Position | 1 | 2 | Position | 1 | 2 | Position | 1 | 2 |
|---|---|---|---|---|---|---|---|---|
| 1 | 161.4 | 161.4 | 1′ | 204.1 | 204.2 | 1″ | 101.6 | 101.8 |
| 2 | 124.2 | 124.2 | 2′ | 51.6 | 51.4 | 2″ | 73.4 | 73.4 |
| 3 | 148.6 | 148.6 | 3′ | 68.8 | 68.8 | 3″ | 76.4 | 76.4 |
| 4 | 120.6 | 120.6 | 4′ | 41.2 | 41.0 | 4″ | 69.8 | 69.8 |
| 4a | 132.8 | 132.6 | 4′a | 136.6 | 136.7 | 5″ | 77.3 | 77.3 |
| 5 | 103.2 | 103.3 | 5′ | 99.6 | 99.4 | 6″ | 60.8 | 60.8 |
| 6 | 163.8 | 163.8 | 6′ | 161.4 | 161.4 | CH3-3 | 21.5 | 21.5 |
| 7 | 120.1 | 120.1 | 7′ | 100.7 | 100.8 | CH3-3′ | 28.2 | 28.5 |
| 8 | 161.1 | 161.2 | 8′ | 159.2 | 159.3 | OCH3-6 | 56.8 | 56.5 |
| 8a | 110.7 | 110.7 | 8′a | 109.6 | 109.6 | OCH3-6′ | 55.1 | 55.1 |
| 9 | 190.5 | 190.5 | 9′ | 164.7 | 164.6 | |||
| 9a | 113.4 | 113.4 | 9′a | 109.4 | 109.4 | |||
| 10 | 181.3 | 181.2 | 10′ | 117.1 | 117.1 | |||
| 10a | 134.6 | 134.5 | 10′a | 139.4 | 139.4 |