InChI=1/C16H20N4O2/c1-10(2)13(20-16(17)22)15(21)19-9-12-6-3-5-11-7-4-8-18-14(11)12/h3-8,10,13H,9H2,1-2H3,(H,19,21)(H3,17,20,22)/t13-/m1/s1/f/h19-20H,17H2 013FD10CBE2686F8