Hexane → 5-Chloro-4-[(4-chlorophenylsulfonyl)(2,6-difluorophenyl)methyl]-2-(3,4-dimethoxybenzylamino)pyridine

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Reaction Conditions

Reaction Steps

To an N-methyl-2-pyrrolidone solution (20 ml) of the 2,5-dichloro-4-[(4-chlorophenylsulfonyl)(2,6-difluorophenyl)methyl]pyridine (755 mg, 1.68 mmol) obtained in Example 294 was added 3,4-dimethoxybenzylamine (0.745 ml, 5.04 mmol) under an argon atmosphere. The resulting mixture was heated at 150° C. for 5 hours. The reaction mixture was returned to room temperature and then, diluted with ethyl acetate. The diluted solution was washed with a saturated aqueous solution of ammonium chloride, a saturated aqueous solution of sodium bicarbonate, water and brine, dried over magnesium sulfate, and concentrated. The residue thus obtained was subjected to flash silica gel column chromatography. The fraction obtained from the hexane:ethyl acetate=2:1 eluate was concentrated to give the title compound (295 mg, 0.509 mmol, 30%) as a white amorphous substance.

Provenance & Evidence