InChI=1/C20H32N4O4/c1-3-10-21-19(25)15-24-11-8-16(9-12-24)22-20(26)23-17-6-4-5-7-18(17)28-14-13-27-2/h4-7,16H,3,8-15H2,1-2H3,(H,21,25)(H2,22,23,26)/p+1/fC20H33N4O4/h21-24H/q+1 77972D40F6A5F3D5