InChI=1/C18H26N4O/c19-4-3-17(23)21-15-1-2-16(20-11-15)22-18-8-12-5-13(9-18)7-14(6-12)10-18/h1-2,11-14H,3-10,19H2,(H,20,22)(H,21,23)/p+2/fC18H28N4O/h19-22H/q+2 E26EFF1490115811