InChI=1/C18H18N2O4/c1-11-3-5-15(21)13(7-11)19-17(22)9-20-10-18(23)24-16-6-4-12(2)8-14(16)20/h3-8,21H,9-10H2,1-2H3,(H,19,22)/f/h19H	996D9D2C2FCF8234