Using [O-][I+2]([O-])O, COCCn1c(=O)c(=O)[nH]c2cc(C(F)(F)F)ccc21 to produce COCCn1c(=O)c(=O)[nH]c2cc(C(F)(F)F)c(I)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.