Using COC(=O)CCc1ccc(-c2nc(-c3ccc(OC(C)C)c(C(F)(F)F)c3)no2)c(C)c1 to produce Cc1cc(CCC(=O)O)ccc1-c1nc(-c2ccc(OC(C)C)c(C(F)(F)F)c2)no1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.