Table 3.
13 C-NMR and 1 H-NMR data for compounds 1–2 (in CDCl3)
| Position | 1(δ in ppm, J in Hz) | 2 (δ in ppm, J in Hz) | ||
|---|---|---|---|---|
| δC | δH | δC | δH | |
| 1 | 149.89 | 9.40 (s) | 149.20 | 9.41 (s) |
| 3 | 162.94 | - | 165.69 | - |
| 3-CH3 | 25.17 | 2.74 (s) | 25.43 | 2.77 (s) |
| 4 | 117.57 | 7.80 (s) | 118.67 | 7.86 (s) |
| 5 | 103.74 | 7.42 (d, 2.4) | 107.53 | 7.34 (d, 2.5) |
| 6 | 164.26 | - | 166.01 | - |
| 6- OCH3 | 56.49 | 4.01 (s) | 56.28 | 3.94 (s) |
| 7 | 105.64 | 6.83 (d, 2.4) | 108.34 | 6.74 (d, 2.5) |
| 8 | 165.14 | - | 166.58 | - |
| 8-OH | - | - | - | 12.76 (s) |
| 8-OCH3 | 56.75 | 3.99 (s) | - | - |
| 9 | 180.61 | - | 182.42 | - |
| 10 | 183.64 | - | 186.31 | - |
| 11 | 137.16 | - | 138.74 | - |
| 12 | 115.87 | - | 110.56 | - |
| 13 | 137.70 | -- | 124.28 | - |
| 14 | 125.62 | 134.61 | - | |