Using CNc1nc2cc(NCc3ccc(C(=O)O)cc3)ccc2s1, Nc1ccccc1N to produce CNc1nc2cc(NCc3ccc(C(=O)Nc4ccccc4N)cc3)ccc2s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.