InChI=1/C16H20N8O2/c1-2-24-14-11(25-8-4-7-18)9-20-10(5-3-6-17)12(14)21-16(24)13-15(19)23-26-22-13/h9H,2,4,6-8,17-18H2,1H3,(H2,19,23)/p+2/fC16H22N8O2/h17-18H,19H2/q+2 E20DBC58878F3F51