8-Chloro-5-(4-methylpiperazin-1-yl)-11H-pyrido[2,3-b][1,5]benzodiazepine

Abstract

The crystal structure determination of C 17 H 18 ClN 5 has been undertaken as part of our studies of dopamine receptors. The diazepine ring is in a boat conformation while the piperazine ring is in the normal chair conformation. The dihedral angle between the two aromatic rings that lie on the same side of the diazepine moiety is 126.4(1)°. There is one N-H...N hydrogen bond [N...N 3.184 (3) A].