Using O=C1C[C@H](NS(=O)(=O)N2CCN(c3ccc(C(F)(F)F)cc3)CC2)C(=O)N1OCc1ccccc1 to produce O=C1C[C@H](NS(=O)(=O)N2CCN(c3ccc(C(F)(F)F)cc3)CC2)C(=O)N1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.