Using C=C(C)c1cc(-c2coc(CCC(=O)OC)n2)cc(C(F)(F)F)c1 to produce COC(=O)CCc1nc(-c2cc(C(C)C)cc(C(F)(F)F)c2)co1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.