InChI=1/C18H20N4O2/c1-23-14-5-3-2-4-12(14)13(10-6-7-10)8-11-9-24-17-15(11)16(19)21-18(20)22-17/h2-5,9-10,13H,6-8H2,1H3,(H4,19,20,21,22)/t13-/m0/s1/f/h19-20H2 68EB3DFEBE0947E2