InChI=1/C18H20N2O4/c1-12-6-8-13(9-7-12)16(21)11-19-17(22)18(23)20-14-4-3-5-15(10-14)24-2/h3-10,16,21H,11H2,1-2H3,(H,19,22)(H,20,23)/t16-/m1/s1/f/h19-20H	532715AEA176EF91