Table 3.
1H-NMR Data of LFB and LFB-DDQ CT Complex (in DMSO-D6)
Signal | Chemical Shift, ppm | Splitting, Integration | Assignment | Location, Atom Number | |
---|---|---|---|---|---|
LFB | LFB-DDQ | ||||
1 | 2.29 | 2.28 | s, 3H | CH3 | C26 |
2 | 2.51 | 2.51 | s, 6H | MDSO | |
3 | 4.12–4.35 | 3.85–3.90 | s, 2H | NH2 | N28 |
4 | 6.79–6.82 | 6.81 | m, 3H | Ph-H | C3, C4, C6 |
5 | 7.10–7.61 | 7.09–7.61 | m, 4H | Ph-H | C12, C13, C15, C16 |
6 | 8.03–8.03 | 8.00–8.01 | m, 3H | Ph-H | C20, C21, C22 |
7 | 8.55 | 8.53 | s, 1H | Urea-NH | N10 |
8 | 9.22 | 9.18 | s, 1H | Urea-NH | N7 |
9 | 11.73 | s, 1H | Indazole-NH | N26 |
Abbreviations: s, singlet; m, multiplet.