InChI=1/C23H21FN2O2/c24-22-11-4-3-10-21(22)23(27)15-26-14-17-6-5-9-20(12-17)28-16-19-8-2-1-7-18(19)13-25/h1-12,23,26-27H,14-16H2/t23-/m1/s1 6BB3C33316A13B87