InChI=1/C16H15F3N2O/c17-16(18,19)11-6-15(22)21-14-7-13-9(5-10(11)14)8-3-1-2-4-12(8)20-13/h5-8,12,20H,1-4H2,(H,21,22)/t8-,12-/m1/s1/f/h21H 8E850B040DDF2C2F