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1H and 13C NMR data for compound 5 (CDCl3, 500 and 125 MHz).
| No. | δ C | δH (m, J, Hz) | No. | δ C | δH (m, J, Hz) |
|---|---|---|---|---|---|
| 1 | 168.9 s | 5 | 127.8 d | 7.49 (d) 8.2 | |
| 3 | 43.1 t | 4.25 s | 6 | 118.5 d | 6.63 (d) 8.2 |
| 4 | 158.3 s | 7 | 139.6 s | ||
| 5 | 115.1 d | 6.73 (d) 1.6 | 8 | 129.2 s | |
| 6 | 138.4 s | 9 | 156.4 s | ||
| 7 | 120.4 d | 7.08 (d) 1.6 | 10 | 117.6 s | |
| 8 | 132.3 s | 11 | 45.0 t | 3.95 s | |
| 9 | 126.2 s | 12 | 205.8 s | ||
| 10 | 23.4 q | 2.42 s | 13 | 30.3 q | 2.25 s |
| 2 | 78.4 s | 14,15 | 26.2 q | 1.61 s | |
| 3 | 47.9 t | 2.66 s | 16 | 41.7 t | 4.33 s |
| 4 | 192.2 s | -OMe | 56.2 q | 3.78 s |
