InChI=1/C18H18N4O2/c1-11-15(18(24)22-16(20-11)7-8-19-22)10-17(23)21-14-6-5-12-3-2-4-13(12)9-14/h5-9,20H,2-4,10H2,1H3,(H,21,23)/f/h21H 090C6CB4BE940A8F