Crystal structure and Hirshfeld surface analysis of 5-acetyl-2-amino-4-(4-bromo­phen­yl)-6-oxo-1-phenyl-1,4,5,6-tetra­hydro­pyridine-3-carbo­nitrile

The crystal structure of the title compound, C(20)H(16)BrN(3)O(2), was determined using an inversion twin. Its asymmetric unit comprises two crystallographically independent mol­ecules (A and B) being the stereoisomers. Both mol­ecules are linked by pairs of N—H⋯O hydrogen bonds, forming a dimer with an R (2) (2)(16) ring motif. The dimers are connected by further N—H⋯O and N—H⋯N hydrogen bonds, forming chains along the c-axis direction·C—Br⋯π inter­actions between these chains contribute to the stabilization of the mol­ecular packing. Hirshfeld surface analysis showed that the most important contributions to the crystal packing are from H⋯H, C⋯H/H⋯C, O⋯H/H⋯O, Br⋯H/H⋯Br and N⋯H/H⋯N inter­actions.