InChI=1/C20H28N4O4/c1-28-20(27)22-17-9-7-16(8-10-17)21-19(26)24-13-11-23(12-14-24)18(25)15-5-3-2-4-6-15/h7-10,15H,2-6,11-14H2,1H3,(H,21,26)(H,22,27)/f/h21-22H	5237B065A19739B6