2,4,6,8-Tetrakis(4-chlorophenyl)-3,7-diazabicyclo[3.3.1]nonan-9-one O-benzyloxime acetone monosolvate

In the title compound, C38H31Cl4N3O·C3H6O, the 3,7-diaza-bicycle exists in a chair–boat conformation. The 4-chlorophenyl groups attached to the chair form are equatorially oriented at an angle of 18.15 (3)° with respect to each other, whereas the 4-chlorophenyl groups attached to the boat form are oriented at an angle of 32.64 (3)°. In the crystal, molecules are linked by N—H⋯π and C—H⋯O interactions.