Using Cc1nc(Cl)c2c(n1)CCCC2, NCc1ccc(-c2ccccc2-c2nnn[nH]2)cc1 to produce Cc1nc2c(c(NCc3ccc(-c4ccccc4-c4nnn[nH]4)cc3)n1)CCCC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.