[Cl:1][C:2]1[CH:10]=[C:9]([C:11](=O)[CH3:12])[C:8]([C:14]2[CH:19]=[C:18]([F:20])[CH:17]=[C:16]([F:21])[CH:15]=2)=[C:7]2[C:3]=1[CH:4]=[N:5][NH:6]2.C([O-])(=O)C.[NH4+].C([BH3-])#[N:28].[Na+]>CO.C(#N)C>[Cl:1][C:2]1[CH:10]=[C:9]([CH:11]([NH2:28])[CH3:12])[C:8]([C:14]2[CH:19]=[C:18]([F:20])[CH:17]=[C:16]([F:21])[CH:15]=2)=[C:7]2[C:3]=1[CH:4]=[N:5][NH:6]2A mixture of 1-[4-chloro-7-(3,5-difluorophenyl)-1H-indazol-6-yl]ethanone (0.20 g, 0.65 mmol) and ammonium acetate (0.50 g, 6.5 mmol) and sodium cyanoborohydride (0.082 g, 1.3 mmol) in methanol (2 mL) and acetonitrile (2 mL) was heated at 65° C. overnight in a sealed tube. The mixture was then cooled to room temperature and quenched with sat. sodium bicarbonate and then extracted with dichloromethane. The combined extracts were dried over magnesium sulfate and evaporated to dryness to give the crude amine which was used directly in the next step. LCMS calculated for C15H10ClF2N2 (M−NH2)+: m/z=291.0; Found: 291.0.
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