Using CCN(CC)CC, Cc1cc(OC2CCN(C(=O)OC(C)(C)C)CC2)c(C(=O)O)cc1[N+](=O)[O-] to produce Cc1cc(OC2CCN(C(=O)OC(C)(C)C)CC2)c(C(N)=O)cc1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.