InChI=1/C20H18N4O3/c1-13-11-16(24(26)27)9-10-17(13)20(25)21-19-12-18(14-7-8-14)22-23(19)15-5-3-2-4-6-15/h2-6,9-12,14H,7-8H2,1H3,(H,21,25)/f/h21H 3815F66E9A0322C9