Using COc1ccc(C2OC[C@@H]3C[C@@H](N4C(=O)c5ccccc5C4=O)C[C@@H]3O2)cc1 to produce COc1ccc(C2OC[C@@H]3C[C@@H](N)C[C@@H]3O2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.