InChI=1/C18H19FN2/c1-11-3-6-17-15(9-11)14(7-8-20)18(21-17)13-4-5-16(19)12(2)10-13/h3-6,9-10,21H,7-8,20H2,1-2H3/p+1/fC18H20FN2/h20H/q+1 8F97DB957255D2D1