InChI=1/C21H26N4O4/c1-25(2)13-12-19(26)23-17-8-10-18(11-9-17)24-20(27)14-22-21(28)29-15-16-6-4-3-5-7-16/h3-11H,12-15H2,1-2H3,(H,22,28)(H,23,26)(H,24,27)/p+1/fC21H27N4O4/h22-25H/q+1 BC2C956D545AD4DA