InChI=1S/C21H8F21NO7/c22-14(23,19(34,35)36)11(45)43-6(9(44)50-10(17(28,29)30)18(31,32)33)3-5-1-2-7(48-12(46)15(24,25)20(37,38)39)8(4-5)49-13(47)16(26,27)21(40,41)42/h1-2,4,6,10H,3H2,(H,43,45)