InChI=1/C20H20N2O4/c1-2-20(15-8-4-3-5-9-15)18(23)22(19(24)21-20)13-14-7-6-10-16-17(14)26-12-11-25-16/h3-10H,2,11-13H2,1H3,(H,21,24)/t20-/m0/s1/f/h21H	364424F619636829