Cl[C:2]1[N:7]=[C:6]([C:8]#[C:9][C:10]2[CH:15]=[CH:14][C:13]([F:16])=[CH:12][CH:11]=2)[CH:5]=[CH:4][N:3]=1>C(N)(C)C.O>[CH:6]([NH:7][C:2]1[N:7]=[C:6]([C:8]#[C:9][C:10]2[CH:15]=[CH:14][C:13]([F:16])=[CH:12][CH:11]=2)[CH:5]=[CH:4][N:3]=1)([CH3:8])[CH3:5]A solution of 2-chloro-4-(4-fluoro-phenylethynyl)-pyrimidine (1 equiv.) in iso-propylamine (0.2 M) is heated at 35° C. for 24 h. The mixture is cooled to rt, diluted with water, and extracted with EtOAc. The organic layer is concentrated and the residue purified by column chromatography to provide the title compound.
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