InChI=1S/C19H28N8/c1-25-7-9-26(10-8-25)11-12-27-14-21-17-18(22-15-5-3-2-4-6-15)23-16(13-20)24-19(17)27/h14-15H,2-12H2,1H3,(H,22,23,24)