Crystal structure of 9-(3-bromo-5-chloro-2-hydroxy­phen­yl)-10-(2-hy­droxy­eth­yl)-3,3,6,6-tetra­methyl-3,4,6,7,9,10-hexa­hydro­acridine-1,8(2H,5H)-dione

The structure of a hydroacridine with significant pharmaceutical potential is reported. The acridinone ring system is in the shape of a shallow V with the majority of the ring system substituents on its convex surface; a plethora of classical and non-classical hydrogen bonds stack the molecules into interconnected columns.

9-(3-Bromo-5-chloro-2-hy­droxy­phen­yl)-10-(2-hy­droxy­eth­yl)-3,6-diphenyl-3,4,9,10-tetra­hydro­acridine-1,8(2H,5H)-dione

In the title compound, C₃₃H₂₇BrClNO₄, the di­hydro­pyridine ring adopts a flattened boat conformation. The mol­ecular conformation is stabilized by an intra­molecular O—H...O hydrogen bond, with an S(8) ring motif. In the crystal, O—H...O, C—H...O and C—H...Cl hydrogen bonds, and C—H...π inter­actions link the mol­ecules, forming a three-dimensional network. In the acridinedione ring system, the two ring C atoms at the 2- and 3-positions, and the C atom at the 6-position and the atoms of the phenyl ring attached to the C atom at the 6-position are disordered over two sets of sites with occupancy ratios of 0.783 (5):0.217 (5) and 0.526 (18):0.474 (18), respectively.