Using O=C1C=CN(S(=O)(=O)c2ccc(C(F)(F)F)cc2)C(c2ccccc2I)C1 to produce O=C1CC2c3ccccc3C(C1)N2S(=O)(=O)c1ccc(C(F)(F)F)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.