InChI=1/C20H21F3N2O3/c1-2-9-25(12-18-4-3-10-28-18)13-19(26)24-11-16-5-7-17(8-6-16)14-27-15-20(21,22)23/h1,3-8,10H,9,11-15H2,(H,24,26)/f/h24H B820147FA4452731