Using [N-]=[N+]=[N-], CC(C)(C)[Si](C)(C)OCC1(CO[Si](C)(C)C(C)(C)C)Oc2ccc([N+](=O)[O-])cc2NC1=O to produce CC(C)(C)[Si](C)(C)OCC1(CO[Si](C)(C)C(C)(C)C)Oc2ccc([N+](=O)[O-])cc2-n2nnnc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.