Using O=C(OC(Cl)(Cl)Cl)OC(Cl)(Cl)Cl, CC[C@@H](N)C(=O)Nc1ccc(Oc2cccc3c2CC(C)(C)O3)nc1 to produce CC[C@H]1NC(=O)N(c2ccc(Oc3cccc4c3CC(C)(C)O4)nc2)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.