Using Cn1c(S(C)=O)nc2c(I)cccc2c1=O, Cn1c(S(C)(=O)=O)nc2c(I)cccc2c1=O to produce Cn1c(O)nc2c(I)cccc2c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.