Using COc1ccc2c(ccn2S(=O)(=O)c2ccccc2)c1OC, II to produce COc1ccc2c(cc(I)n2S(=O)(=O)c2ccccc2)c1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.