Using [NH4+], COC(=O)c1cnc(-c2cnc(Nc3ccc(N4CCOCC4)cc3)c3nccn23)s1 to produce NC(=O)c1cnc(-c2cnc(Nc3ccc(N4CCOCC4)cc3)c3nccn23)s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.