InChI=1/C21H16F3NO3/c22-21(23,24)28-19-8-4-5-15(13-19)14-25-20(26)16-9-11-18(12-10-16)27-17-6-2-1-3-7-17/h1-13H,14H2,(H,25,26)/f/h25H A28BFABA2EBDDDE1