InChI=1/C18H22N4O/c1-22(2)11-5-10-20-15-9-8-13(19)17-16(15)18(23)12-6-3-4-7-14(12)21-17/h3-4,6-9,20H,5,10-11,19H2,1-2H3,(H,21,23)/p+1/fC18H23N4O/h21-22H/q+1 C7241B42267688EE