Using CCOC(=O)c1sc(N)c(C#N)c1-c1ccc(Cl)cc1Cl, ICI to produce CCOC(=O)c1sc(I)c(C#N)c1-c1ccc(Cl)cc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.