Using O=C(Nc1ccn(Cc2c(O)cccc2Cl)n1)c1c(F)cccc1F, CC(C)CBr to produce CC(C)COc1cccc(Cl)c1Cn1ccc(NC(=O)c2c(F)cccc2F)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.