TABLE 2.
Proton | Chemical shift, multiplicity | Coupling constants (Hz) | Connectivities |
---|---|---|---|
ppm | J | ||
H-1 or H3 | 8.08, d; 8.22, d | 7.7 or 7.8 | H-2 with H-1/H-3 |
H-2 | 7.95, m | H-1/H-3 with H-2 | |
H-4 | 7.92, m | H-4 with H-5 | |
H-5 | 8.05, d | 9.1 | H-5 with H-4 |
H-6 | 8.88, s | ||
H-9 | 7.52, d | 9.3 | H-9 with H-10 |
H-10 | 8.88, d | 9.1 | H-10 with H-9 |
H-11 | 9.02, d | 9.1 | H-11 with H-12 |
H-12 | 8.31, d | 9.1 | H-12 with H-11 |