Using CCOC(=O)CNc1ccc(Cl)cc1Oc1ccc(S(C)(=O)=O)cc1Cl, O=C([O-])O to produce CCOC(=O)CN(C)c1ccc(Cl)cc1Oc1ccc(S(C)(=O)=O)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.