InChI=1/C20H21N7O/c21-20-23-17(13-18-22-19(24-27(18)20)16-7-4-12-28-16)26-10-8-25(9-11-26)14-15-5-2-1-3-6-15/h1-7,12-13H,8-11,14H2,(H2,21,23)/p+1/fC20H22N7O/h25H,21H2/q+1 AC6CE81AE499A7AB