Using CCOC(=O)N(CCC(c1ccc(OCOC)cc1)c1cccnc1)S(=O)(=O)c1ccc(Cl)cc1 to produce CCOC(=O)N(CCC(c1ccc(O)cc1)c1cccnc1)S(=O)(=O)c1ccc(Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.