Using COc1ccc(Cc2ccc(F)cc2)c(F)c1Oc1cccc(N)c1, Cl to produce COc1ccc(Cc2ccc(F)cc2)c(F)c1Oc1cccc(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.