InChI=1S/C22H32N4O4/c1-23-13-9-11-19(17-23)29-21(27)25(3)15-7-5-6-8-16-26(4)22(28)30-20-12-10-14-24(2)18-20/h9-14,17-18H,5-8,15-16H2,1-4H3/q+2