title: 8-Chloro-5-(4-phenethylpiperazin-1--yl)pyrido[2,3-b][1,5]benzoxazepine.
abstract: As part of an anti-psychotic drug discovery program, we report the crystal structure of the title compound, C(24)H(23)ClN(4)O. The mol-ecule has a tricyclic framework with a characteristic buckled V-shaped pyridobenzoxazepine unit, with the central seven-membered heterocycle in a boat configuration. The piperazine ring displays a chair conformation with the 2-phenyl-ethyl substituent assuming an equatorial orientation. There are two crystallographically independent, but virtually identical, mol-ecules in the asymmetric unit.
authors.forename: Ben
authors.initials: B
authors.lastname: Capuano
authors.forename: Ian T
authors.initials: IT
authors.lastname: Crosby
authors.forename: Craig M
authors.initials: CM
authors.lastname: Forsyth
authors.forename: Edward J
authors.initials: EJ
authors.lastname: Lloyd
authors.forename: Amelia
authors.initials: A
authors.lastname: Vom
authors.forename: Elizabeth
authors.initials: E
authors.lastname: Yuriev