Using O=C1OC(=O)C2=C1CCCC2, O=C(O)Cc1cccc([N+](=O)[O-])c1 to produce O=C1OC(=Cc2cccc([N+](=O)[O-])c2)C2=C1CCCC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.