Using [NH4+], COc1ccc(C(=O)CNC(=O)C2CN(Cc3ccccc3)CCO2)cc1 to produce COc1ccc(-c2c[nH]c(C3CN(Cc4ccccc4)CCO3)n2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.