InChI=1/C22H30N4O2/c1-25(2)21(27)20(17-18-11-6-4-7-12-18)24-22(28)23-15-10-16-26(3)19-13-8-5-9-14-19/h4-9,11-14,20H,10,15-17H2,1-3H3,(H2,23,24,28)/t20-/m1/s1/f/h23-24H 67253A4B4588DD67