InChI=1/C18H24N4O2/c1-3-21(4-2)13-12-19-18(24)16-10-11-17(23)22(20-16)14-15-8-6-5-7-9-15/h5-11H,3-4,12-14H2,1-2H3,(H,19,24)/p+1/fC18H25N4O2/h19,21H/q+1 8BF11BA9021B69A2