InChI=1S/C20H19F3N2O3/c21-14-8-16(23)15(22)6-12(14)13-7-20(26)25(9-17(13)24)4-3-11-1-2-18-19(5-11)28-10-27-18/h1-2,5-6,8,13,17H,3-4,7,9-10,24H2/t13-,17+/m1/s1