Using COC(=O)c1ccc2[nH]cc(CCNCc3cccc(OCC(F)(F)F)c3)c2c1 to produce O=C(O)c1ccc2[nH]cc(CCNCc3cccc(OCC(F)(F)F)c3)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.