Using CCOC(=O)c1nc(N2CCN(CCO)CC2)n(C)c(=O)c1OCc1ccccc1 to produce CCOC(=O)c1nc(N2CCN(CCO)CC2)n(C)c(=O)c1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.