Using CC1(C2CCC(NC(=O)OCC3c4ccccc4-c4ccccc43)CC2)OCCO1 to produce CC(=O)C1CCC(NC(=O)OCC2c3ccccc3-c3ccccc32)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.