Using COC(=O)c1ccc(-c2ccc(C(=O)OC)cc2I)c(I)c1 to produce O=C(O)c1ccc(-c2ccc(C(=O)O)cc2I)c(I)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.