Using COc1cc(C)c(C(=O)c2c(C(F)(F)F)cc(Cl)nc2Cl)c(OC)c1OC to produce COc1cc(C)c(C(=O)c2c(C(F)(F)F)ccnc2Cl)c(OC)c1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.