Using CCN(CC)C(=O)n1cc(C=O)c(S(=O)(=O)c2cccc(Cl)c2C)n1 to produce CCN(CC)C(=O)n1cc(CO)c(S(=O)(=O)c2cccc(Cl)c2C)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.