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The title compound was prepared according to the general procedure for the synthesis of heterocyclyl and heteroaryl substituted phenylsulfonyl derivatives previously described, using 4-Bromo-N-[4-chloro-2-(pyridine-4-carbonyl)-phenyl]-benzenesulfonamide 0.3 g (0.66 mmol), potassium phosphate tribasic monohydrate 0.91 g (3.96 mmol), rac-2,2′-bis (diphenylphosphino)-1,1′-binaphthyl 0.12 g (0.198 mmol), thiomorpholine 0.34 g (3.3 mmol) and Pd (dba)3 60 mg (0.066 mmol) in 3 ml DMF followed by work up and HPLC purification: LC-MSD, m/z for C22H20ClN3O3S2 [M+H]+: 474.0

1. customHPLC purification