Using O=S(Cl)Cl, O=C(CC1OC(=O)c2ccccc21)c1ccc([N+](=O)[O-])cc1 to produce O=C(C=Cc1ccccc1C(=O)Cl)c1ccc([N+](=O)[O-])cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.