Using COc1cc(F)c(F)cc1Br, CCSc1ncc(C(=O)N(C)OC)c(N)n1 to produce CCSc1ncc(C(=O)c2cc(F)c(F)cc2OC)c(N)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.