Using CC(=O)OC(C)=O, O=C(O)[C@H](Cc1ccc([N+](=O)[O-])cc1)NC(=O)C(F)(F)F to produce CC(=O)Nc1ccc(C[C@H](NC(=O)C(F)(F)F)C(=O)O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.