Using O=C1CCCN1, FCC1(CF)Oc2ccc(C(F)(F)C(F)(F)F)cc2C2OC21 to produce O=C1CCCN1C1=CC(CF)(CF)Oc2ccc(C(F)(F)C(F)(F)F)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.