Using CCC[n+]1ccc(-c2cc(OC)c([N+](=O)[O-])cc2C)cc1 to produce CCCN1CC=C(c2cc(OC)c([N+](=O)[O-])cc2C)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.