Using [NH4+], CCn1c(=O)n(CC)c2cc(C(CC(=O)c3cccnc3)C(=O)c3cccc(C)c3)ccc21 to produce CCn1c(=O)n(CC)c2cc(-c3cc(-c4cccnc4)[nH]c3-c3cccc(C)c3)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.