InChI=1/C20H26N4O4/c1-4-24(5-2)16(17-10-7-11-28-17)13-22-19(26)20(27)23-15-9-6-8-14(12-15)18(25)21-3/h6-12,16H,4-5,13H2,1-3H3,(H,21,25)(H,22,26)(H,23,27)/p+1/t16-/m1/s1/fC20H27N4O4/h21-24H/q+1 26FC618B82E87DF2