Using CCCCC1CN(Cc2ccc(O)cc2)C(=O)C1CN(C=O)OCc1ccccc1 to produce CCCCC1CN(Cc2ccc(O)cc2)C(=O)C1CN(O)C=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.