InChI=1/C18H20N2O4/c1-12(21)20-15-5-3-4-14(10-15)18(23)19-11-17(22)13-6-8-16(24-2)9-7-13/h3-10,17,22H,11H2,1-2H3,(H,19,23)(H,20,21)/t17-/m0/s1/f/h19-20H	BD9942D8B3014F47