InChI=1/C18H21F3N4O/c1-24(2)16-10-14(8-9-22-16)11-23-17(26)25(3)12-13-4-6-15(7-5-13)18(19,20)21/h4-10H,11-12H2,1-3H3,(H,23,26)/f/h23H CB91B5877FED5621