InChI=1S/C21H22N6O/c1-4-27-19(7-8-25-27)17-12-24-20-15(17)10-14(11-23-20)13-5-6-18(22)16(9-13)21(28)26(2)3/h5-12H,4,22H2,1-3H3,(H,23,24)