[Cl:1][C:2]1[N:9]=[C:8](Cl)[C:7]([Cl:11])=[CH:6][C:3]=1[C:4]#[N:5].[CH3:12][C:13]1[NH:17][N:16]=[C:15]([NH2:18])[CH:14]=1.CCN(C(C)C)C(C)C>CCO>[Cl:1][C:2]1[N:9]=[C:8]([NH:18][C:15]2[CH:14]=[C:13]([CH3:12])[NH:17][N:16]=2)[C:7]([Cl:11])=[CH:6][C:3]=1[C:4]#[N:5]To a 25-ml, round-bottom flask, was added 2,5,6-trichloronicotinonitrile (Method 44, 1 g, 4.8 mmol), 5-methyl-1H-pyrazol-3-amine (466 mg, 4.8 mmol), DIEA (1.1 ml, 6.3 mmol), and EtOH (5 ml) and set to heat at 55° C. for 16 hours. The resulting mixture was then purified by silica gel chromatography (Biotage Horizon System) using 25-75% EtOAc/hexanes to give 770 mg of the title compound. 1H NMR: 12.36 (s, 1H) 9.68 (s, 1H) 8.39 (s, 1H) 6.32 (s, 1H) 2.29 (s, 3H). MS: Calcd.: 268. Found: [M+H]+ 267/269.
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