1,1-Dimethylethyl 4-(4-amino-2-fluorophenyl)-1-piperazinecarboxylate → HCID 66760728, compound

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Reaction Steps

8-ethyl-2-(methylsulfinyl)-6-phenylpyrido[2,3-d]pyrimidin-7(8H)-one (120 mg, 0.38 mmol) and 4-(4-amino-2-fluorophenyl)piperazine-1-carboxylic acid tert-butyl ester (113 mg, 0.38 mmol) were stirred at 120° C. for 3 h. The reaction mixture was purified by silica gel column chromatography using hexane:ethyl acetate (3:2). The isolated product was recrystallized from isopropanol to give the title compound (45 mg, 0.08 mmol, 21%) as a pale yellow solid. ESMS m/z 545 (M+H)+.

Provenance & Evidence