Using Nc1ccc2[nH]c(=O)sc2c1, CCc1[nH]c2ncnc(Cl)c2c1C to produce CCc1[nH]c2ncnc(Nc3ccc4[nH]c(=O)sc4c3)c2c1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.