5-[4-[2-[4-[(1,3-dioxo-2-benzofuran-5-yl)oxy]phenyl]-1,1,1,3,3,3-hexafluoropropan-2-yl]phenoxy]-2-benzofuran-1,3-dione

4-[4-[bis(4-aminophenyl)methyl]phenoxy]benzene-1,2-dicarbonitrile

4-[4-[4-(3,4-dicyanophenoxy)phenyl]phenoxy]benzene-1,2-dicarbonitrile

4-[4-[2-[4-(3,4-二羧基苯氧基)苯基]丙-2-基]苯氧基]邻苯二甲酸