Using Nc1ccc(Cl)c(Cl)c1, Oc1cc(O)c2cc(Br)ccc2n1 to produce Oc1cc(Nc2ccc(Cl)c(Cl)c2)c2cc(Br)ccc2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.