2,4-Bis(2-bromo-phen-yl)-3-aza-bicyclo-[3.3.1]nonan-9-one.

In the mol-ecular structure of the title compound, C(20)H(19)Br(2)NO, the fused six-membered heterocyclic and cyclo-hexane rings adopt a twin-chair conformation with equatorial orientations of all the substituents. Both the ortho-bromo substituents of the benzene rings are oriented towards the carbonyl group; the dihedral angle between the ring planes is 29.13 (3)°. In the crystal structure, the N-H group does not participate in any hydrogen bonds.