1-Phenylpiperazine → Methyl 4-{[(5-ethoxy-5-oxopentyl)(2-{[5-(4-phenylpiperazino)-pentyl]oxy}phenethyl)amino]methyl}benzoate

Participants

Reaction Steps

200.0 mg (0.355 mmol) of methyl 4-{[{2-[(5-bromopentyl)oxy]phenethyl}(5-ethoxy-5-oxopentyl)amino]methyl}benzoate from Ex. 107, 69.21 mg of N-phenylpiperazine and 71.95 mg (0.711 mmol) of triethylamine in 2 ml of tetrahydrofuran are heated at reflux for 18 hours. The reaction solution is washed with water, concentrated and chromatographed over silica gel using the mobile phase ethyl acetate/methanol 10/1.

Provenance & Evidence