InChI=1/C20H28N4O4/c1-20(17(26)23-19(28)24-20)15-9-5-6-13(10-15)11-21-18(27)22-12-16(25)14-7-3-2-4-8-14/h5-6,9-10,14,16,25H,2-4,7-8,11-12H2,1H3,(H2,21,22,27)(H2,23,24,26,28)/t16-,20+/m0/s1/f/h21-24H E353B2E41A7EDC49