Using CCOC(=O)c1nn(-c2ccc(Cl)c(C(=O)OC(C)C)c2)c(=O)c(C)c1C(F)(F)F to produce Cc1c(C(F)(F)F)cnn(-c2ccc(Cl)c(C(=O)O)c2)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.