3-[6-(2-Fluoro-4-nitrophenoxy)pyrimidin-4-yl]-1-[1-(2-dimethylaminoethyl)piperidin-4-yl]-1-methylurea → 3-[6-(4-Amino-2-fluorophenoxy)pyrimidin-4-yl]-1-[1-(2-dimethylaminoethyl)piperidin-4-yl]-1-methylurea

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Reaction Steps

After adding 20% palladium hydroxide-carbon (18.3 mg) to a solution of 3-[6-(2-fluoro-4-nitrophenoxy)pyrimidin-4-yl]-1-[1-(2-dimethylaminoethyl)piperidin-4-yl]-1-methylurea (240 mg) in tetrahydrofuran (10 ml), the mixture was stirred for 15.5 hours at room temperature under a hydrogen atmosphere. The catalyst was filtered and washed with methanol. The filtrate was then concentrated to provide the title compound (220 mg, 98.0%) as a yellow amorphous substance.

Provenance & Evidence