Acetyl chloride → N-[6-(8-acetyloctahydro-2H-pyrazino[1,2-a]pyrazin-2-yl)-4-(4-fluoro-2-methylphenyl)-3-pyridinyl]-2-[3,5-bis(trifluoromethyl)phenyl]-N,2-dimethylpropanamide

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Reaction Steps

To a solution of crude 2-[3,5-bis(trifluoromethyl)phenyl]-N-[4-(4-fluoro-2-methylphenyl)-6-(octahydro-2H-pyrazino[1,2-a]pyrazin-2-yl)-3-pyridinyl]-N,2-dimethylpropanamide (prepared with an analogous procedure to that described for D80, 89 mg, 0.14 mmol) in 5 mL of dichloromethane were added at 0° C. triethylamine (197 μL, 1.41 mmol) and acetyl chloride (75 μL, 1.0 mmol). The reaction was left at room temperature for 2 h. It was diluted with dichloromethane, extracted with sat NaHCO3 solution, the organics dried (Na2SO4), and the solvent was removed. The product was purified by flash chromatography (silica, cyclohexane: EtOAc 50:50 to EtOAc). Obtained 60 mg.

Provenance & Evidence