[Br:1][C:2]1[CH:3]=[C:4]2[C:8](=[N:9][CH:10]=1)[NH:7][CH:6]=[CH:5]2.[F:11][C:12]1[C:19]([O:20][CH2:21][CH2:22][O:23][CH:24]2[CH2:29][CH2:28][CH2:27][CH2:26][O:25]2)=[CH:18][CH:17]=[C:16]([F:30])[C:13]=1[CH:14]=[O:15].[OH-].[K+].O>CO>[Br:1][C:2]1[CH:3]=[C:4]2[C:5]([CH:14]([C:13]3[C:16]([F:30])=[CH:17][CH:18]=[C:19]([O:20][CH2:21][CH2:22][O:23][CH:24]4[CH2:29][CH2:28][CH2:27][CH2:26][O:25]4)[C:12]=3[F:11])[OH:15])=[CH:6][NH:7][C:8]2=[N:9][CH:10]=1To 5-bromo-7-azaindole (67, 118 mg, 0.000597 mol) in methanol (9.0 mL) were added 2,6-difluoro-3-[2-(tetrahydro-pyran-2-yloxy)-ethoxy]-benzaldehyde (541, 180.0 mg, 0.63 mmol) and potassium hydroxide (601.9 mg, 10.7 mmol) under an atmosphere of nitrogen. The reaction was stirred at room temperature overnight. The reaction was poured into water and extracted with ethyl acetate. The organic layer was dried over anhydrous sodium sulfate and filtered. The filtrate was concentrated to give crude compound that was used directly in the next step.
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