Using CC(=O)Nc1cc2c(cc1[N+](=O)[O-])NC(=O)C2(C)C, ClCc1ncco1 to produce CC1(C)C(=O)N(Cc2ncco2)c2cc([N+](=O)[O-])c(N)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.