Using Cc1cnc(CCl)c(C)c1Cl, Nc1nc(Cl)c2cn[nH]c2n1 to produce Cc1cnc(Cn2ncc3c(Cl)nc(N)nc32)c(C)c1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.