InChI=1/C20H28N4O4/c1-14(2)24(12-16-5-8-26-13-16)19(25)17-9-15(3)10-18(11-17)27-6-4-7-28-23-20(21)22/h5,8-11,13-14H,4,6-7,12H2,1-3H3,(H4,21,22,23)/f/h21-22H2 F533E8197E2D8544