Using CC(C)(C)OC(=O)N1CCC(O)CC1, Oc1ccc(Br)c2cnc(Cl)nc12 to produce CC(C)(C)OC(=O)N1CCC(Oc2ccc(Br)c3cnc(Cl)nc23)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.