InChI=1/C20H20N4O4/c1-12(25)22-17(10-13-11-21-16-8-4-2-6-14(13)16)20(28)24-23-19(27)15-7-3-5-9-18(15)26/h2-9,11,17,21,26H,10H2,1H3,(H,22,25)(H,23,27)(H,24,28)/t17-/m0/s1/f/h22-24H 74CCB722AE2B10A2