InChI=1/C15H13F3N2O/c1-14(2)4-3-8-5-9-10(15(16,17)18)6-13(21)19-12(9)7-11(8)20-14/h3-7,20H,1-2H3,(H,19,21)/f/h19H 5D0A8EF4DF3ED819