InChI=1/C15H22N4O/c1-2-18-8-10-19(11-9-18)13-15(20)17-16-12-14-6-4-3-5-7-14/h3-7,12H,2,8-11,13H2,1H3,(H,17,20)/p+1/b16-12+/fC15H23N4O/h17-18H/q+1 B9FBC6616B74EF5B