Using CCOP(=O)(OCC)c1c([N+](=O)[O-])cc(C(=O)OC)cc1[N+](=O)[O-] to produce CCOP(=O)(OCC)c1c(N)cc(C(=O)OC)cc1N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.