CN1CCCC1=O.[NH2:8][C:9]1[C:14]([F:15])=[CH:13][C:12]([F:16])=[C:11](F)[N:10]=1.[CH3:18][O:19][C:20]1[CH:27]=[CH:26][C:23]([CH2:24][NH2:25])=[CH:22][CH:21]=1>C(Cl)(Cl)Cl>[NH2:8][C:9]1[C:14]([F:15])=[CH:13][C:12]([F:16])=[C:11]([NH:25][CH2:24][C:23]2[CH:26]=[CH:27][C:20]([O:19][CH3:18])=[CH:21][CH:22]=2)[N:10]=1To 10 ml of N-methylpyrrolidone were added 3.90 g of 2-amino-3,5,6-trifluoropyridine and 7.60 g of p-methoxybenzylamine, and the mixture was stirred under nitrogen atmosphere at 140° C. for one day and allowed to cool. To the solution was added 50 ml of chloroform, and the solution was washed three times with 500 ml of distilled water. The chloroform layer was dried over anhydrous magnesium sulfate and concentrated under reduced pressure, and the residue was subjected to chromatography (silica gel, 32 g; eluent: chloroform) to obtain 4.50 g of the title compound as a pale yellow crude oil.
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