Using O=C(O[C@H]1CC[C@@H](N2CC[C@]3(CCCN(C(=O)OCc4ccccc4)C3)C2=O)CC1)c1ccccc1 to produce O=C(O[C@H]1CC[C@@H](N2CC[C@]3(CCCNC3)C2=O)CC1)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.