Using O=C1CN(C(=O)C(F)(F)F)CCN1c1ccc(S(=O)(=O)Nc2nccs2)cc1 to produce O=C1CNCCN1c1ccc(S(=O)(=O)Nc2nccs2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.