Using CCOC(=O)c1cc(-c2ccccc2)nc2nc(N3CCC(F)(F)CC3)sc12 to produce O=C(O)c1cc(-c2ccccc2)nc2nc(N3CCC(F)(F)CC3)sc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.