InChI=1/C20H20N4O4/c21-17(25)11-22-18(26)13-7-4-8-14(9-13)23-19(27)20(28)24-16-10-15(16)12-5-2-1-3-6-12/h1-9,15-16H,10-11H2,(H2,21,25)(H,22,26)(H,23,27)(H,24,28)/t15-,16-/m0/s1/f/h22-24H,21H2	EE508C2F0D86D36F