Using O=C1CCCc2[nH]c([N+](=O)[O-])c(C(=O)O)c21, CCOc1ccc(N)cc1 to produce CCOc1ccc(NC(=O)c2c([N+](=O)[O-])[nH]c3c2C(=O)CCC3)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.