InChI=1/C20H24N4O/c1-25-18-6-4-17(5-7-18)24-13-11-23(12-14-24)10-8-16-15-22-20-19(16)3-2-9-21-20/h2-7,9,15H,8,10-14H2,1H3,(H,21,22)/p+1/fC20H25N4O/h22-23H/q+1 D19D0C9265F10BC3