2-Butanamine, (S)- → HCID 70665065, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of methyl 3-chloro-2-(4-fluorophenyl)quinoxaline-6-carboxylate (400.0 mg, 1.26 mmol) in DMSO (3 mL) was added (S)-butan-2-amine (200 mg, 2.74 mmol). The resulting solution was stirred overnight at 90° C. and then diluted with water (50 mL), extracted with dichloromethane (5×20 mL), dried over anhydrous magnesium sulfate and concentrated in vacuo. The residue was purified by a silica gel column chromatography with 2% ethyl acetate in petroleum ether to afford (S)-methyl 3-(sec-butylamino)-2-(4-fluorophenyl)quinoxaline-6-carboxylate as a yellow solid (280.0 mg, 63%).

Provenance & Evidence