Using Oc1ccc(Cl)cc1, O=c1c2cc(Br)ccc2nnn1Cc1cccnc1 to produce O=c1c2cc(Oc3ccc(Cl)cc3)ccc2nnn1Cc1cccnc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.