Dichloromethane → (4-Chloro-2-(10-fluoro-1-oxo-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-2(1H)-yl)pyridin-3-yl)methyl Acetate

Participants

Reaction Conditions

Reaction Steps

A round-bottomed flask was charged with 231a (600 mg, 1.72 mmol), dichloromethane (50 mL), and triethylamine (5 mL). The solution was stirred at 0° C. for 0.5 h and acetyl chloride (135 mg, 1.72 mmol) was added slowly. The mixture was stirred at 0° C. for another 2.5 h. It was then evaporated under reduced pressure. The residue was purified by silica-gel column chromatography eluting with 9:1 petroleum ether/ethyl acetate to afford 231b (605 mg, 90%) as a yellow solid. MS-ESI: [M+H]+ 392.1

Provenance & Evidence