InChI=1/C13H10FN3O4/c14-8-5-6-12(10(7-8)17(19)20)21-11-4-2-1-3-9(11)13(15)16-18/h1-7,18H,(H2,15,16)/f/h15H2/b16-13+ C6DECDE56C870327