InChI=1/C18H13N3O2/c1-23-11-6-4-5-10(9-11)15-14-16(21-18(19)20-15)12-7-2-3-8-13(12)17(14)22/h2-9H,1H3,(H2,19,20,21)/f/h19H2 DA71B42B218B3335