Using Cc1c([N+](=O)[O-])cccc1[N+](=O)[O-], CCOC(=O)C(=O)OCC to produce CCOC(=O)C(=O)Cc1c([N+](=O)[O-])cccc1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.