InChI=1/C18H18N2O4/c1-21-14-9-13(10-15(22-2)17(14)23-3)20-18-19-11-16(24-18)12-7-5-4-6-8-12/h4-11H,1-3H3,(H,19,20)/f/h20H	030A959AD0AED151