Using COC(=O)C1(CN2CCC(COc3noc4cccc(OCC(F)(F)F)c34)CC2)CCOCC1 to produce O=C(O)C1(CN2CCC(COc3noc4cccc(OCC(F)(F)F)c34)CC2)CCOCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.