InChI=1S/C23H24N4O2/c1-15-4-9-18(10-5-15)24-22(28)26-20-13-8-17(3)21(14-20)27-23(29)25-19-11-6-16(2)7-12-19/h4-14H,1-3H3,(H2,24,26,28)(H2,25,27,29)