InChI=1/C20H20FNO/c1-11-10-20(3,4)22-16-7-6-14-15-9-13(21)5-8-17(15)23-12(2)19(14)18(11)16/h5-10,12,22H,1-4H3/t12-/m0/s1 7931CD817CA408D7