Using C[C@H](C[C@@H](Cc1ccc(-c2ccccc2)cc1)NC(=O)n1ccc(C(=O)O)n1)C(=O)OCc1ccccc1 to produce C[C@H](C[C@@H](Cc1ccc(-c2ccccc2)cc1)NC(=O)n1ccc(C(=O)O)n1)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.