InChI=1S/C21H22N6O2/c1-27-9-8-15(10-18(27)20-25-16-4-2-3-5-17(16)26-20)24-21(29)23-14-7-6-13(12-22)19(28)11-14/h2-7,11,15,18,28H,8-10H2,1H3,(H,25,26)(H2,23,24,29)/p-1/t15-,18-/m1/s1