Using COC(=O)c1cc2scnc2c(F)c1Nc1ccccc1F, O=C1CCC(=O)N1I to produce COC(=O)c1cc2scnc2c(F)c1Nc1ccc(I)cc1F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.