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

The crystal structure of the title compound, C17H17ClN4O, has been undertaken as part of our studies of dopamine receptors. The oxazepine ring has a boat conformation, while the piperazine ring is in a normal chair conformation. The dihedral angle between the two aromatic rings that lie on the same side of the oxazepine moiety is 113.99 (7)degrees. There is no hydrogen bonding.