InChI=1/C16H13N3O/c20-16-12-4-1-5-13-14(12)11(6-8-18-16)15(19-13)10-3-2-7-17-9-10/h1-5,7,9,19H,6,8H2,(H,18,20)/f/h18H 7FB9F83B2BDDFF43