4-(4-Bromo­phen­yl)-3-meth­yl-1-phen­yl-4,5-dihydro-1H-pyrazolo[3,4-b]pyridin-6(7H)-one

The title compound, C₁₉H₁₆BrN₃O, was synthesized by the reaction of 5-amino-3-meth­yl-1-phenyl­pyrazole with 4-bromo­phenyl­aldehyde and Medrum's acid in glycol under microwave irradiation. X-ray crystal structure analysis reveals three crystallographically independent mol­ecules in the asymmetric unit. In all these mol­ecules, the dihydro­pyridine ring adopts a distorted envelope conformation. In the crystal structure, the mol­ecules exist as N—H...O hydrogen-bonded dimers.