2,4-Bis(2-bromo-phen-yl)-7-tert-pentyl-3-aza-bicyclo-[3.3.1]nonan-9-one

The title compound, C(25)H(29)Br(2)NO, is a tert-pentyl analog of 2,4-bis-(2-bromo-phen-yl)-3-aza-bicyclo-[3.3.1]nonan-9-one [Par-thiban et al. (2008 ▶). Acta Cryst. E64, o2385]. Similar to its analog, the title compound exists in a twin-chair conformation with an equatorial orientation of the 2-bromo-phenyl groups. The benzene rings are inclined to each other at a dihedral angle of 29.6 (3)°. The tert-pentyl group on the cyclo-hexa-none ring also adopts an exocyclic equatorial disposition.