ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE, vol.59, 2003 (SCI-Expanded)
The title compound, C19H20ClN3O2, is composed of an essentially planar benzoxazolinone ring system, a chlorophenyl group and a central piperazine ring. The benzoxazolinone ring system is nearly perpendicular to the piperazine ring, which displays an almost perfect chair conformation.