Cl[C:2]1[N:7]=[C:6]([CH3:8])[C:5]([N+:9]([O-:11])=[O:10])=[CH:4][CH:3]=1.[CH3:12][NH:13][CH3:14].O>CO.CCOC(C)=O>[CH3:12][N:13]([CH3:14])[C:2]1[CH:3]=[CH:4][C:5]([N+:9]([O-:11])=[O:10])=[C:6]([CH3:8])[N:7]=1To a solution of 6-chloro-2-methyl-3-nitropyridine (0.5 g, 2.9 mmol) in MeOH (5 mL) was added dimethylamine in water (1.2 mL, 11.6 mmol) and the reaction mixture was heated at 60° C. for 4 h. The reaction mixture was then diluted with EtOAc, extracted with water and washed with brine. The organic layer was dried over sodium sulphate and concentrated to yield the title compound (0.5 g, 95%). LCMS (ES+) 182 (M+H)+, RT 2.74 minutes (method 1).
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