1,5-Dimethyl-1H-pyrazol-4-amine dihydrochloride → (3R)-1-(2-((1,5-dimethyl-1H-pyrazol-4-yl)amino)pyrimidin-4-yl)-3-ethyl-2-oxopyrrolidine-3-carbonitrile

Participants

Reaction Steps

A solution of (3R)-1-(2-chloropyrimidin-4-yl)-3-ethyl-2-oxopyrrolidine-3-carbonitrile (100 mg) obtained in Step A of Example 8 and 1,5-dimethyl-1H-pyrazol-4-amine dihydrochloride (73 mg) in propan-2-ol (4.0 mL) was stirred in a microwave reactor at 160° C. for 1 hr, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (NH, hexane/ethyl acetate), and recrystallized (diisopropyl ether/ethyl acetate) to give the title compound (90 mg).

Provenance & Evidence