InChI=1S/C23H26N4O2/c1-26-16-21(19-9-4-5-10-20(19)22(26)28)25-23(29)24-12-6-13-27-14-11-17-7-2-3-8-18(17)15-27/h2-5,7-10,16H,6,11-15H2,1H3,(H2,24,25,29)