N-methyl-2-pyrrolidone → N-[4-(benzyloxy)-3-methoxyphenyl]-5H-pyrrolo[3,2-d]pyrimidin-4-amine

Participants

Reaction Conditions

Reaction Steps

A mixture of 4-chloro-5H-pyrrolo[3,2-d]pyrimidine (200 mg), 4-(benzyloxy)-3-methoxyaniline (298 mg) and 1-methyl-2-pyrrolidone (5 mL) was stirred at 80° C. for 4 hrs. Methanol and activated carbon were added to the reaction mixture and the mixture was stirred. The activated carbon was filtered off, aqueous sodium hydrogen carbonate solution was added and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the obtained residue was purified by silica gel column chromatography (eluent, methanol:ethyl acetate=10:80→20:80) and recrystallized from methanol-ethyl acetate to give the title compound (269 mg) as a pale-gray powder.

Provenance & Evidence