Using CCOC(=O)C(C(=O)OCC)C(=O)c1cc(OC)c(OC)c([N+](=O)[O-])c1 to produce CCOC(=O)CC(=O)c1cc(O)c(O)c([N+](=O)[O-])c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.