Using Nc1nc(Cl)cc(-c2ccncc2)n1, Cn1ccc2c(Nc3ccc(N)cc3F)ccnc21 to produce Cn1ccc2c(Nc3ccc(Nc4cc(-c5ccncc5)nc(N)n4)cc3F)ccnc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.