InChI=1/C20H20N4O4/c1-3-16(25)21-15-11-7-8-13(12-15)17(26)23-24-18(27)20(2,22-19(24)28)14-9-5-4-6-10-14/h4-12H,3H2,1-2H3,(H,21,25)(H,22,28)(H,23,26)/t20-/m0/s1/f/h21-23H	712DAE9AB9D54C90