Trifluoroacetic acid → 2-(3,5-Bis-(4-fluoro-phenyl)-(1,2,4)triazol-1-yl)-1-piperazin-1-yl-ethanone

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Reaction Steps

3.1 g 4-(2-(3,5-bis-(4-fluoro-phenyl)-(1,2,4)triazol-1-yl)-acetyl)-piperazine-1-carboxylic acid tert-butyl ester was dissolved in 20 mL dichlormethane and 20 mL trifluoracetic acid was added. The reaction was stirred for 24 h at RT and the solvent was evaporated. Potassium carbonate solution (10%) was added to the residue, the precipate was filtered and crystallized from a mixture of acetonitrile and isopropylether to yield 2.3 g of the desired compound. (M+H)+: 384

Provenance & Evidence