Using NC(=O)[C@@H](N)CCc1ccccc1, O=C(O)c1ccc2[nH]c(-c3ccccc3)c(-c3ccccc3)c2c1 to produce NC(=O)C(CCc1ccccc1)NC(=O)c1ccc2[nH]c(-c3ccccc3)c(-c3ccccc3)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.