InChI=1S/C23H29FN4O4/c1-2-3-5-18(20(29)21(30)27-19-10-13-25-28-19)26-22(31)32-15-23(11-4-12-23)14-16-6-8-17(24)9-7-16/h6-10,13,18H,2-5,11-12,14-15H2,1H3,(H,26,31)(H2,25,27,28,30)/t18-/m0/s1