Using CCOC(=O)[C@H]1CCc2c(Cl)nc(NC3CCOCC3)nc2O1 to produce CCOC(=O)[C@H]1CCc2cnc(NC3CCOCC3)nc2O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.