Using CI, COc1ccc(N2CCCn3c2nc2c(Cl)ccc(C(O)C(F)(F)F)c23)c(C)n1 to produce COc1ccc(N2CCCn3c2nc2c(Cl)ccc(C(OC)C(F)(F)F)c23)c(C)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.