InChI=1/C14H8F3N3O3/c15-14(16,17)8-3-9-10(19-13(23)12(22)18-9)4-11(8)20-2-1-7(5-20)6-21/h1-6H,(H,18,22)(H,19,23)/f/h18-19H F4C922BCDBD4E12C