Using CC(C)(C)OC(=O)CC(=O)[O-], Cn1c(=O)oc(=O)c2cc(I)ccc21 to produce Cn1c(=O)c(C(=O)OC(C)(C)C)c(O)c2cc(I)ccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.