InChI=1/C22H19FN2O3/c1-15-8-10-16(11-9-15)22(26)14-21(17-4-2-5-18(23)12-17)24-19-6-3-7-20(13-19)25(27)28/h2-13,21,24H,14H2,1H3/t21-/m1/s1 D211CF3996E13080