Using O=Cc1ccc(Cl)c([N+](=O)[O-])c1, CC[N+](=O)[O-] to produce C/C(=C\c1ccc(Cl)c([N+](=O)[O-])c1)[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.