CO.C([NH:10][C:11]1[C:16]([F:17])=[C:15]([CH3:18])[C:14]([F:19])=[C:13]([F:20])[N:12]=1)C1C=CC=CC=1>[Pd].C(O)(=O)C>[NH2:10][C:11]1[C:16]([F:17])=[C:15]([CH3:18])[C:14]([F:19])=[C:13]([F:20])[N:12]=1To 4 ml of methanol were added all amount of the crude 2-benzylamino-3,5,6-trifluoro-4-methylpyridine as described above together with 0.18 g of 10% palladium on carbon and 2 ml of acetic acid, and the mixture was hydrogenated at 50° C. for one day. The catalyst was separated by filtration, and the solvent and the like were distilled off under reduced pressure to obtain 1.35 g of the title compound as a colorless solid.
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