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Reagents and conditions: (a) 2-amino-1-(4-fluorophenyl)ethenone hydrochloride, EDC, HOBt, DIEA, DCM, DMF, 6%; (b) POCl3, reflux, 25%; (c) Cs2CO3, EtOH, 2-bromo-4’-fluoroacetophenone (98), DMF, NH4OAc, PhMe, reflux, 63%, (d) MeI, K2CO3, DMF, 78%.
