InChI=1/C16H15F3N2O2/c1-21(2)11-5-6-13-12(9-11)15(16(17,18)19,23-14(22)20-13)8-7-10-3-4-10/h5-6,9-10H,3-4H2,1-2H3,(H,20,22)/t15-/m1/s1/f/h20H 0742A6C5C96B789E