InChI=1/C18H24N4O2/c1-22-10-7-13(8-11-22)21-17(23)6-9-19-18(24)15-12-20-16-5-3-2-4-14(15)16/h2-5,12-13,20H,6-11H2,1H3,(H,19,24)(H,21,23)/p+1/fC18H25N4O2/h19,21-22H/q+1 6E26BAF21484BD3F