InChI=1S/C25H26F4N2O2/c1-15-7-8-18-20(5-4-6-21(18)31-15)30-14-24(32,25(27,28)29)13-23(2,3)19-12-17(26)11-16-9-10-33-22(16)19/h4-8,11-12,30,32H,9-10,13-14H2,1-3H3/t24-/m1/s1