InChI=1/C18H18N4O/c1-13-16-8-4-10-21(16)11-12-22(13)18(23)20-15-7-2-5-14-6-3-9-19-17(14)15/h2-10,13H,11-12H2,1H3,(H,20,23)/t13-/m0/s1/f/h20H 6F65CB442B8C2726