InChI=1S/C19H19F3N4/c1-18(2,3)26-16-14-10-12(11-5-4-6-13(23)9-11)7-8-15(14)24-17(25-16)19(20,21)22/h4-10H,23H2,1-3H3,(H,24,25,26)