Using COc1ccccc1N1CCN(CCCO)CC1, O=C(O)C12CC3CC(CC1C3)C2 to produce COc1ccccc1N1CCN(CCCOC(=O)C23CC4CC(CC2C4)C3)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.