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