InChI=1S/C17H16F17NO4S/c1-3-5-6-35(7-8-39-9(36)4-2)40(37,38)17(33,34)15(28,29)13(24,25)11(20,21)10(18,19)12(22,23)14(26,27)16(30,31)32/h4H,2-3,5-8H2,1H3