InChI=1/C15H12F3NO3/c1-21-10-4-5-12-11(8-10)14(15(16,17)18,22-13(20)19-12)7-6-9-2-3-9/h4-5,8-9H,2-3H2,1H3,(H,19,20)/t14-/m1/s1/f/h19H B98968D53330CB27