InChI=1/C21H20N6O2/c1-3-26-20(29)17-6-4-5-7-18(17)22-21(26)24-23-19(28)15-8-10-16(11-9-15)27-13-12-14(2)25-27/h4-13H,3H2,1-2H3,(H,22,24)(H,23,28)/f/h23-24H 1818C038D253F571