InChI=1S/C20H20N6O2/c1-13(2)15-7-5-14(6-8-15)10-22-17(27)11-25-16-4-3-9-21-18(16)26-12-23-24-19(26)20(25)28/h3-9,12-13H,10-11H2,1-2H3,(H,22,27)