Using CCOC(=O)c1cc2cc(OCCN3CCC(C(F)(F)F)CC3)ccc2o1 to produce O=C(O)c1cc2cc(OCCN3CCC(C(F)(F)F)CC3)ccc2o1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.