InChI=1/C16H11N3O2/c17-9-13-12(10-3-5-11(20)6-4-10)8-14(19-16(13)18)15-2-1-7-21-15/h1-8,20H,(H2,18,19)/f/h18H2 6C08AC4A5E8D1B87