InChI=1S/C21H30N4O4/c1-2-29-20-13-18(22)19(25(27)28)12-17(20)21(26)23-16-8-10-24(11-9-16)14-15-6-4-3-5-7-15/h3-4,12-13,15-16H,2,5-11,14,22H2,1H3,(H,23,26)