[Cl:1][C:2]1[N:7]=[C:6](Cl)[C:5]([Cl:9])=[CH:4][N:3]=1.[NH2:10][C:11]1[CH:21]=[CH:20][CH:19]=[CH:18][C:12]=1[C:13]([N:15]([CH3:17])[CH3:16])=[O:14].C(N(C(C)C)CC)(C)C>C(O)(C)C>[Cl:1][C:2]1[N:7]=[C:6]([NH:10][C:11]2[CH:21]=[CH:20][CH:19]=[CH:18][C:12]=2[C:13]([N:15]([CH3:17])[CH3:16])=[O:14])[C:5]([Cl:9])=[CH:4][N:3]=1A round-bottomed flask was charged with 2,4,5-trichloropyrimidine (1.0 g, 3.4 mmol), 2-amino-N,N-dimethylbenzamide (587 mg, 3.5 mmol), di-isopropyl-ethylamine (712 μL, 4.08 mmol) and 15 mL of isopropanol. The flask was fitted with a reflux condenser and the reaction was heated to reflux and stirred for 18 h. A white solid appeared in the reaction mixture. The reaction was cooled to 0° C. and filtered and solid was washed with ether to afford 2-[(2,5-dichloro-4-pyrimidinyl)amino]-N,N-dimethylbenzamide (896 mg, 94%):
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