Using COC(=O)c1ccc2c(c1)S(=O)(=O)c1ccccc1N=C2Cl to produce COC(=O)c1ccc2c(c1)S(=O)(=O)c1ccccc1NC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.