Using O=S(=O)(Cl)Cl, O=S(=O)(c1ccsc1C/C=C/c1ccc2c(c1)OCO2)n1cccc1 to produce O=S(=O)(Cl)c1ccsc1C/C=C/c1ccc2c(c1)OCO2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.