Using COc1ccc2c(c1)S(=O)(=O)C(S(N)(=O)=O)=C2 to produce COc1ccc2c(c1)S(=O)(=O)C(S(N)(=O)=O)C2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.