Using O=C(OC(Cl)(Cl)Cl)OC(Cl)(Cl)Cl, C[C@@H](N)C(=O)Nc1ccc(Oc2ccc3c(c2)COC3)cc1 to produce C[C@H]1NC(=O)N(c2ccc(Oc3ccc4c(c3)COC4)cc2)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.