InChI=1/C19H14N4O/c20-18(24)14-4-3-6-16-17(14)23-19(22-16)13-9-7-12(8-10-13)15-5-1-2-11-21-15/h1-11H,(H2,20,24)(H,22,23)/f/h22H,20H2 8D5613A2DD23DA7C