Using CCOC(=O)Cn1cc([N+](=O)[O-])c2c(CC(=O)O)cccc21 to produce CCOC(=O)Cn1cc2c3c(cccc31)CC(=O)N2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.