Using COc1cccc(N2CCN(CCCON3C(=O)CC4(CCCC4)CC3=O)CC2)c1, CO to produce COc1ccccc1N1CCN(CCCON2C(=O)CC3(CCCC3)CC2O)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.