InChI=1/C19H20N2O5/c1-11(13-3-5-15-17(7-13)25-9-23-15)20-19(22)21-12(2)14-4-6-16-18(8-14)26-10-24-16/h3-8,11-12H,9-10H2,1-2H3,(H2,20,21,22)/t11-,12+/f/h20-21H	33EC0B673A2F669B