Benzoyl chloride → N-(2-{4-[2-(3,5-dimethyl-pyrazol-1-yl)-acetyl]-piperazin-1-yl}-phenyl)-benzamide

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Reaction Steps

The 1-[4-(2-amino-phenyl)-piperazin-1-yl]-2-(3,5-dimethyl-pyrazol-1-yl)-ethanone (0.042 g, 0.136 mmol) is dissolved in 1.5 mL of CH2Cl2. To this is added diisopropylethyl amine (0.046 mL, 0.250 mmol) and benzoyl chloride (0.018 mL, 0.150). The mixture is stirred for 60 h. The reaction is quenched with 2 mL of saturated NH4Cl and extracted in the reaction vial with 2×2 mL of CH2Cl2. The organic phase is concentrated. The residue is purified using a SiO2 prep plate eluting with (75% EtOAc/hexanes) to give 58.1 mg of N-(2-{4-[2-(3,5-dimethyl-pyrazol-1-yl)-acetyl]-piperazin-1-yl}-phenyl)-benzamide in 100% Yield. MS: MH+=418.2.

Provenance & Evidence