InChI=1S/C26H25F3N2O7/c1-24(2,23(35)36)21-8-13-7-17(16(27)10-18(13)31(21)11-15(33)12-32)30-22(34)25(5-6-25)14-3-4-19-20(9-14)38-26(28,29)37-19/h3-4,7-10,15,32-33H,5-6,11-12H2,1-2H3,(H,30,34)(H,35,36)/t15-/m1/s1