Using O=c1cc(C=Cc2ccc([N+](=O)[O-])cc2)oc(-c2ccccc2)c1 to produce Nc1ccc(C=Cc2cc(=O)cc(-c3ccccc3)o2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.