Using O=C(O)c1ccc(CN(Cc2ccc(F)cc2)S(=O)(=O)c2cc(Cl)cc(Cl)c2O)cc1, CNOC to produce CON(C)C(=O)c1ccc(CN(Cc2ccc(F)cc2)S(=O)(=O)c2cc(Cl)cc(Cl)c2O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.