Using CCCCc1nc2c[n+]([O-])c3ccccc3c2n1CCOCCNC(=O)OC(C)(C)C, [NH4+] to produce CCCCc1nc2c(N)nc3ccccc3c2n1CCOCCNC(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.