InChI=1/C19H17N3O4/c1-11-8-18(24)26-16-9-14(6-7-15(11)16)21-10-17(23)22-13-4-2-12(3-5-13)19(20)25/h2-9,21H,10H2,1H3,(H2,20,25)(H,22,23)/f/h22H,20H2 1FCEF0ECCDD4AC3A