InChI=1S/C18H24N6O2/c1-14-3-2-4-15(11-14)23-18(25)20-6-5-19-16-12-17(22-13-21-16)24-7-9-26-10-8-24/h2-4,11-13H,5-10H2,1H3,(H,19,21,22)(H2,20,23,25)