Using [NH4+], COc1ccc2cc(C(=O)CCC(=O)c3ccccc3)ccc2c1 to produce COc1ccc2cc(-c3ccc(-c4ccccc4)[nH]3)ccc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.