InChI=1/C13H8F3N3O2/c14-13(15,16)7-5-8-9(18-12(21)11(20)17-8)6-10(7)19-3-1-2-4-19/h1-6H,(H,17,20)(H,18,21)/f/h17-18H F3F919CE98015058