InChI=1/C26H16F2O4/c27-26(28)31-18-11-8-16(9-12-18)24(30)25-23(21-13-10-17(29)14-22(21)32-25)20-7-3-5-15-4-1-2-6-19(15)20/h1-14,26,29H CA7425665EC5A427