Using CCOC(=O)CCC(CCCCNS(=O)(=O)c1ccc(Cl)cc1)CCCc1cccnc1 to produce COC(=O)CCC(CCCCNS(=O)(=O)c1ccc(Cl)cc1)CCCc1cccnc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.