Using COC(=O)C(c1ccc2ccc3ncc(Cl)cc3c(=O)c2c1)S(=O)(=O)N(C)C to produce CN(C)S(=O)(=O)Cc1ccc2ccc3ncc(Cl)cc3c(=O)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.