InChI=1/C20H20N4O4/c1-11-3-8-15-16(9-11)19(27)24(18(15)26)12(2)17(25)22-10-13-4-6-14(7-5-13)23-20(21)28/h3-9,12H,10H2,1-2H3,(H,22,25)(H3,21,23,28)/t12-/m1/s1/f/h22-23H,21H2	238558CD2CC2D707