| Assignment | Shift(ppm) | Integration | Splitting Patter | J-values(Hz) |
|---|---|---|---|---|
| a | 4.71 | 1H | d | 2.2 |
| b | 4.67 | 2H | s | - |
| c | 4.65-4.59 | 1H | m | - |
| d | 4.51 | 1H | ddd | 14.7, 7.1, 4.0 |
| e | 4.20 | 1H | dd | 12.2, 2.6 |
| f | 3.87 | 1H | ddt | 9.8, 5.9, 2.1 |
| g | 3.38 | 3H | s | - |
| h | 2.70 | 1H | ddd | 14.2, 4.7, 1.6 |
| i | 2.48-2.37 | 2H | m | - |
| j | 2.32-2.18 | 2H | m | - |
| k | 2.06-1.90 | 3H | m | - |
| l | 1.86-1.62 | 4H | m | - |
| m | 1.53 | 2H | ddd | 9.7, 5.2, 1.9 |
