InChI=1/C19H19N3O4/c1-24-12-6-4-11(5-7-12)22-18-13-8-16(25-2)17(26-3)9-15(13)21-10-14(18)19(20)23/h4-10H,1-3H3,(H2,20,23)(H,21,22)/f/h22H,20H2 7CAB653506641012