InChI=1S/C26H21F7O2/c1-2-14-3-8-23(34-13-14)16-6-4-15(5-7-16)17-9-19(27)24(20(28)10-17)26(32,33)35-18-11-21(29)25(31)22(30)12-18/h4-7,9-12,14,23H,2-3,8,13H2,1H3