Using CCOC(=O)C(C(=O)OCC)c1cccn(-c2c(C)cc([N+](=O)[O-])cc2C)c1=O to produce Cc1cc([N+](=O)[O-])cc(C)c1-n1cccc(CC(=O)O)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.