Using CSc1cc(-c2nccnc2Cl)nc(C)n1, Nc1cccc2[nH]ncc12 to produce CSc1cc(-c2nccnc2Nc2cccc3[nH]ncc23)nc(C)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.