InChI=1/C18H26N4O2/c1-13-6-8-15(9-7-13)21(2)18(24)20-14-4-3-5-16(12-14)22-11-10-19-17(22)23/h3-5,12-13,15H,6-11H2,1-2H3,(H,19,23)(H,20,24)/f/h19-20H B0B0C1B8D68535E1