InChI=1/C19H20F2N2O/c20-16-7-5-15(6-8-16)14-3-1-13(2-4-14)11-18(22)19(24)23-10-9-17(21)12-23/h1-8,17-18H,9-12,22H2/p+1/t17-,18-/m0/s1/fC19H21F2N2O/h22H/q+1 8BB067DD3EC3429C