Using COC(=O)c1ccc(-c2nc(-c3ccc(C(F)(F)F)cc3)no2)c(NC(=O)C(F)(F)F)c1 to produce Nc1cc(C(=O)O)ccc1-c1nc(-c2ccc(C(F)(F)F)cc2)no1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.