InChI=1/C21H26N6O4/c28-20(23-24-21(29)22-18-7-4-8-19(15-18)27(30)31)9-10-25-11-13-26(14-12-25)16-17-5-2-1-3-6-17/h1-8,15H,9-14,16H2,(H,23,28)(H2,22,24,29)/p+1/fC21H27N6O4/h22-25H/q+1 22CA63268C25AE6B