Using OCC(F)(F)F, O=C1NC(=O)C(c2ccccc2)=C1Nc1ccc(OC(F)(F)F)cc1 to produce O=C1C(Nc2ccc(OC(F)(F)F)cc2)=C(c2ccccc2)C(=O)N1CC(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.