InChI=1/C18H18N4O/c1-2-21-10-5-8-18(21)13-7-4-3-6-12(13)14-15(18)22-11-9-19-16(22)17(23)20-14/h3-4,6-7,9,11H,2,5,8,10H2,1H3,(H,20,23)/t18-/m0/s1/f/h20H 45A0C5945B65EDA0