Using O=S(=O)(O)O, N#CC(=CC(=O)[O-])c1ccc(Cl)c(Cl)c1 to produce O=C1C=C(c2ccc(Cl)c(Cl)c2)C(=O)O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.