Using CC(C)N1CCC(N(CC(F)(F)F)S(=O)(=O)CCN2C(=O)c3ccccc3C2=O)CC1 to produce CC(C)N1CCC(N(CC(F)(F)F)S(=O)(=O)CCN)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.