Using CCCN, O=C1CC=C(c2c[nH]c3cc([N+](=O)[O-])ccc23)CC1 to produce CCCNC1CC=C(c2c[nH]c3cc([N+](=O)[O-])ccc23)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.