InChI=1S/C19H24N2O8/c1-7-13-8(3-4-21(7)2)9-5-11(22)12(6-10(9)20-13)28-19-16(25)14(23)15(24)17(29-19)18(26)27/h5-7,14-17,19-20,22-25H,3-4H2,1-2H3,(H,26,27)