Using COc1ncnc2c1ccn2S(=O)(=O)c1ccc(C)cc1, II to produce COc1ncnc2c1cc(I)n2S(=O)(=O)c1ccc(C)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.