Table 1 1H and 13C NMR data of compound 1 measured in methanol-d4
Present data | Reference data [33] | |||
|---|---|---|---|---|
Position | δC (ppm) | δH (ppm) | δC (ppm) | δH (ppm) |
1 | 151.49 | – | 150.2 | – |
2 | 124.73 | – | 125.2 | – |
3 | 133.30 | – | 132.8 | – |
4 | 119.58 | 7.12 (1H, s) | 119.4 | 7.21 (1H, s) |
5 | 122.58 | 7.40 (1H, dd, J = 1.3, 8.2 Hz) | 122.3 | 7.47 (1H, dd, J = 1.0, 8.0 Hz) |
6 | 127.20 | 7.36 (1H, d, J = 8.2 Hz) | 127.3 | 7.40 (1H, dd, J = 8.0, 8.0 Hz) |
7 | 110.51 | 7.28 (1H, dd, J = 1.3, 7.3, Hz) | 110.7 | 7.30 (1H, dd, J = 1.0, 8.0 Hz) |
8 | 154.71 | – | 154.2 | – |
9 | 113.54 | – | 113.2 | – |
10 | 136.74 | – | 135.7 | – |
1′ | 102.84 | 5.05 (1H, d, J = 7.9 Hz) | 102.6 | 5.04 (1H, d, J = 7.5 Hz) |
2′ | 73.57 | 3.46 (1H, t, J = 8.8 Hz) | 73.3 | 3.39 (1H, m) |
3′ | 76.82 | 3.37 (1H, m) | 76.2 | 3.36 (1H, m) |
4′ | 70.13 | 2.91 (1H, m) | 70.1 | 3.18 (1H, m) |
5′ | 76.10 | 3.68 (1H, m) | 76.0 | 3.59 (1H, m) |
6′ | 66.59 | 4.05 ( 1H, d, J = 8.9 Hz); 3.63 (1H, m) | 66.6 | 3.93 (1H, dd, J = 1.5, 11.0 Hz); 3.50 (2H, m) |
1′′ | 100.86 | 4.71 (1H, d, J = 1.4 Hz) | 100.7 | 4.62 (1H, d, J = 1.5 Hz) |
2′′ | 70.84 | 3.84 (1H, dd, J = 1.6, 3.4 Hz) | 70.4 | 3.68 (1H, m) |
3′′ | 71.03 | 3.63 (1H, m) | 70.7 | 3.50 (2H, m) |
4′′ | 72.59 | 3.31 (1H, m) | 71.9 | 3.20 (1H, m) |
5′′ | 68.55 | 3.52 (1H, m) | 68.4 | 3.49 (1H, m) |
6′′ | 16.55 | 1.17 (3H, d, J = 6.2 Hz) | 17.7 | 1.12 (3H, d, J = 6.0 Hz) |
ArCH3 | 18.49 | 2.25 (3H, s) | 19.0 | 2.25 (3H, s) |
COCH3 | 41.3 | 2.97 (3H, s) | 31.9 | 2.52 (3H, s) |
COCH3 | 207.07 | – | 204.4 | – |