Using NNc1ccc([N+](=O)[O-])cc1, CCOC(=O)C1CCC(=O)CC1C(=O)OCC to produce CCOC(=O)C1Cc2[nH]c3ccc([N+](=O)[O-])cc3c2CC1C(=O)OCC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.