Using O=S(Cl)Cl, Cc1oc(-c2ccccc2)nc1COc1ccc(S(=O)(=O)[O-])cc1 to produce Cc1oc(-c2ccccc2)nc1COc1ccc(S(=O)(=O)Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.