Methylamine → (S)-tert-butyl methyl(1-((5-(2-(methylamino)-4-(propylamino)pyrimidin-5-yl)-4-pentyn-1-yl)amino)-1-oxopropan-2-yl)carbamate

Participants

Reaction Conditions

Reaction Steps

To (S)-tert-butyl (1-((5-(2-((1H-benzo[d][1,2,3]triazol-1-yl)oxy)-4-(propylamino)pyrimidin-5-yl)-4-pentyn-1-yl)amino)-1-oxopropan-2-yl)(methyl)carbamate (K3, 50 mg), a 2.0 mol/L solution of methylamine in tetrahydrofuran (1 mL) was added at room temperature, the reaction vessel was sealed, and then the mixture was stirred at 50° C. for 5 hours by using a microwave reaction system. The reaction mixture was cooled to room temperature, and then the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (eluent, 40 to 0% hexane in ethyl acetate) to obtain oily (S)-tert-butyl methyl(1-((5-(2-(methylamino)-4-(propylamino)pyrimidin-5-yl)-4-pentyn-1-yl)amino)-1-oxopropan-2-yl)carbamate (K4, 35 mg).

Provenance & Evidence