InChI=1/C15H11N3O2/c19-13(10-5-2-1-3-6-10)9-12-15(20)18-14-11(17-12)7-4-8-16-14/h1-9,17H,(H,16,18,20)/b12-9-/f/h18H 786225907AF8C6B2