Into a 25-mL round-bottom flask purged and maintained with an inert atmosphere of nitrogen, was placed a solution of 6-[bis(4-chlorophenyl)methyl]-N-(piperidin-4-yl)cinnolin-4-amine (100 mg, 0.22 mmol, 1.00 equiv) in N,N-dimethylformamide (10 mL), methyl 3-(bromomethyl)benzoate (50...