InChI=1/C14H13N5O/c1-2-8-19-9-15-11-12(19)17-14(18-13(11)20)16-10-6-4-3-5-7-10/h2-7,9H,1,8H2,(H2,16,17,18,20)/f/h16,18H 5BFAFF3AC7EAF63C