Using CCN(CC)S(=O)(=O)Cl, O=Cc1c(O)ccc2ccccc12 to produce CCN(CC)S(=O)(=O)c1ccc2c(C=O)c(O)ccc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.