Using CC(C)(O)c1cc(F)c(-c2cc(C(N)=O)c(Nc3ccc(=O)[nH]n3)s2)c(F)c1, COC(=O)CBr to produce COC(=O)Cn1nc(Nc2sc(-c3c(F)cc(C(C)(C)O)cc3F)cc2C(N)=O)ccc1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.