Using COc1nc2cc([N+](=O)[O-])cc(CN3CC3C)c2nc1OC to produce CC1CN1Cc1cc([N+](=O)[O-])cc2[nH]c(=O)c(=O)[nH]c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.