Using CCOC(=O)CCc1cc(CCNS(=O)(=O)CC(F)(F)F)cc(Cc2cccnc2)c1 to produce O=C(O)CCc1cc(CCNS(=O)(=O)CC(F)(F)F)cc(Cc2cccnc2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.