Using Cc1[nH]c(-c2ccccc2)nc1CC(C)(C)[N+](=O)[O-], CI to produce Cc1c(CC(C)(C)[N+](=O)[O-])nc(-c2ccccc2)n1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.