Triethylamine → HCID 42635793, compound

Participants

Reaction Steps

2-(4-Methylpiperazin-1-yl)ethyl 4-nitrophenyl carbonate (Intermediate 4; 866 mg, 2.8 mmol) was dissolved in DMF (25 mL). NEt3 (0.5 mL, 3.6 mmol) and 4-(2,5-dimethyl-phenyl)piperazine (580 mg, 3.1 mmol) were added and the reaction mixture was stirred at room temperature for 24 hours, and the reaction mixture was then concentrated in vacuo. The resulting residue was dissolved in EtOAc (50 mL) and washed with 1M aq Na2CO3 solution (5×50 mL), dried (MgSO4) and concentrated in vacuo. The residue was purified by normal phase column chromatography (eluting with DCM, followed by a 200:8:1 mixture of DCM:EtOH:NH3) to give 2-(4-methylpiperazin-1-yl)ethyl 4-(2,5-dimethyl-phenyl)piperazine-1-carboxylate (274 mg, 27%) as a yellow oil.

Provenance & Evidence