InChI=1/C18H22N4O2/c1-11-6-7-15(17-14(11)9-19-21-17)20-18(24)12-8-16(23)22(10-12)13-4-2-3-5-13/h6-7,9,12-13H,2-5,8,10H2,1H3,(H,19,21)(H,20,24)/t12-/m1/s1/f/h20-21H 5F005513588231D5