Using CCOC(=O)c1nc2n(c(=O)c1OCc1ccccc1)CC1CCN2CC1 to produce O=C(O)c1nc2n(c(=O)c1OCc1ccccc1)CC1CCN2CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.