Using CS(=O)(=O)Cl, CCOC(=O)c1cc(I)c(N)cc1SC to produce CCOC(=O)c1cc(I)c(N(S(C)(=O)=O)S(C)(=O)=O)cc1SC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.