InChI=1/C21H26N6O4/c28-20(23-24-21(29)22-18-6-8-19(9-7-18)27(30)31)10-11-25-12-14-26(15-13-25)16-17-4-2-1-3-5-17/h1-9H,10-16H2,(H,23,28)(H2,22,24,29)/p+1/fC21H27N6O4/h22-25H/q+1 4FA57F444ACE49FF