Using O=C(OCc1ccccc1)[C@@H]1CCCN1C(=O)OCC12CC3CC(CC(C3)C1)C2 to produce O=C(O)[C@@H]1CCCN1C(=O)OCC12CC3CC(CC(C3)C1)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.