InChI=1/C16H11N3O3/c20-16(18-10-4-3-7-17-8-10)14-12-9-21-13-6-2-1-5-11(13)15(12)22-19-14/h1-8H,9H2,(H,18,20)/f/h18H 43BBF704DBEA872E