InChI=1S/C22H32N4O2/c1-16(2)14-26-15-20(18-6-4-5-7-19(18)21(26)27)24-22(28)23-10-13-25-11-8-17(3)9-12-25/h4-7,15-17H,8-14H2,1-3H3,(H2,23,24,28)