InChI=1S/C17H20N6O4/c1-10(2)12-6-4-11(5-7-12)8-27-16(25)19-15(24)13-14-20-21-22(3)17(26)23(14)9-18-13/h4,9,12H,1,5-8H2,2-3H3,(H,19,24,25)/t12-/m1/s1