Using OC(CN(Cc1ccccc1)CC(O)C1CCc2ccccc2O1)C1CCc2ccccc2O1 to produce OC(CNCC(O)C1CCc2ccccc2O1)C1CCc2ccccc2O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.