6-chloro-N-{4-[(1-methyl-1H-benzimidazol-2-yl)oxy]phenyl}-5-nitropyrimidin-4-amine → N4-{4-[(1-methyl-1H-benzimidazol-2-yl)oxy]phenyl}pyrimidine-4,5-diamine

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Reaction Steps

A mixture of 6-chloro-N-{4-[(1-methyl-1H-benzimidazol-2-yl)oxy]phenyl}-5-nitropyrimidin-4-amine (240 mg) and 10% palladium on carbon (160 mg) in MeOH (10 mL) and THF (10 mL) was hydrogenated under balloon pressure at room temperature overnight. To the mixture was added TEA (0.50 mL). The catalyst was removed by filtration and the filtrate was concentrated in vacuo. The residue was purified by column chromatography (silica gel, eluted with 0%-5% MeOH in AcOEt) to give N4-{4-[(1-methyl-1H-benzimidazol-2-yl)oxy]phenyl}pyrimidine-4,5-diamine (80 mg) as a colorless solid.

Provenance & Evidence