Using C=C(CC(Cl)(Cl)Cl)c1cc(Br)nc(OC)c1, C=C(CC(Cl)(Cl)Cl)c1cc(Cl)nc(OC)c1 to produce COc1cc(C2(CC(Cl)(Cl)Cl)CO2)cc(Cl)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.