Using CC(=O)O[C@@H]1NC(=O)[C@H]1NC(c1ccccc1)(c1ccccc1)c1ccccc1 to produce CO[C@H]1NC(=O)[C@H]1NC(c1ccccc1)(c1ccccc1)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.