Propionic Acid → HCID 178493980, compound

Participants

Reaction Conditions

Reaction Steps

N2-(trans-3-((7-chloroquinoxalin-2-yl)amino)cyclobutyl)pyridine-2,3-diamine (118 mg, 0.346 mmol), tetramethyl orthocarbonate (922 μl, 6.92 mmol) and propionic acid (12.91 μl, 0.173 mmol) were combined under nitrogen. The reaction mixture was stirred at 100° C. for 2 hours. The reaction mixture was diluted with water and extracted with dichloromethane. The organic extract was washed with saturated ammonium chloride and dried over magnesium sulfate. The solution was concentrated in vacuo to give the crude material as a off-white solid. It was absorbed onto a plug of silica gel and purified by chromatography through a Redi-Sep pre-packed silica gel column (4 g), eluting with a hexane to ethyl acetate gradient, to provide 7-chloro-N-(trans-3-(2-methoxy-3H-imidazo[4,5-b]pyridin-3-yl)cyclobutyl)quinoxalin-2-amine (85 mg, 0.223 mmol, 64.5% yield). M+1: 380.9.

Provenance & Evidence