Proton number | Chemical Shift (ppm) | Multiplicity | Coupling constant | Integration |
H4 | 8.03 | Doublet | 3J = 8.9 Hz | 1.11 |
H5 | 7.67 | Doublet of doublet | 3J = 8.9 Hz; 4J = 2.2 Hz | 1.15 |
H7 | 7.58 | Doublet | 4J = 2.2 Hz | 0.82 |
H8 | 3.1 | Doublet of doublet | 2J = 14.1 Hz; 3J = 8.35 Hz | 1.20 |
H8’ | 3.35 | Doublet of doublet | 2J = 14.1 Hz; 3J = 4.05 Hz | 1.22 |
H9 | 4.4 | Doublet of doublet | 3J = 4.05 Hz; 3J = 8.35 Hz | 1.00 |
H12 | 4.1 | Doublet of doublet | 3J = 3.5 Hz; 3J = 5.2 Hz | 1.14 |
H13 | 3.7 | Doublet of doublet | 2J = 12 Hz; 3J = 3.70 Hz | 2.57 |
H13’ | 3.7 | Doublet of doublet | 2J = 12 Hz; 3J = 5.1 Hz |