| Comp. No. | Proton values (d, ppm) | |||||
| C-H aromatic | CH=CH | N-H | -CH2-aliphatic | C-H (ring) | Others | |
| 11c | 7.2 - 7.9 | 6.3 - 6.9 | 11.8 | 5.3 | 8.01 | (OH)12 |
| 12c | 7.15 - 8 | 6.3 - 6.91 | 10.9 | 5.4 | 8 | (OH) 9.01 |
| 13c | 7.3 - 7.8 | 6 - 6.92 | 11.1 | 5.3 | 8.01 |
|
| 14c | 7.1 - 8 | 6.4 - 6.9 | 11.3 | 5.3 | 7.9 | (-N(CH3)2)2.6 |
| 15c | 7.2 - 7.8 | 6.1 - 6.3 | 11.9 | 5.4 | 8.1 | (-CH=CH-)=5.9-6 |
| 16c | 6.9 - 7.7 | 6.3 - 6.8 | 11.1 | 5.6 | 7.9 |
|
| 17c | 7 - 7.9 | 6.2 - 6.9 | 10.9 | 5.2 | 8 |
|
| 18c | 7.1 - 7.9 | 6.3 - 6.9 | 11.2 | 5.4 | 8.02 |
|