Synthesis of some 2,3-disubstituted quinazolones as possible anticonvulsants

By the condensation of 2-phenyl-3-acylchloride quinazolin (3H)-4-one with N-phenyl- and N-methyl piperazines or piperidine, 15 new 2-phenyl-3-piperidino/substituted piperazino acyl-quinazolin (3H)-4-ones 1--3 have been prepared. All the compounds barring one exhibited at the 100 mg/kg dose level significant activity against pentylenetetrazol induced seizures but these compounds did not afford any protection against electroshock induced seizures.