InChI=1/C19H18N4O3/c24-19(16-8-4-5-9-17(16)23(25)26)21-11-10-18-20-12-13-22(18)14-15-6-2-1-3-7-15/h1-9,12-13H,10-11,14H2,(H,21,24)/f/h21H 2B69B8490E3AF91F