InChI=1S/C20H27N3O8/c1-11(2)16(21)17(26)22-12(3)18(27)23(14(19(28)29)9-15(24)25)20(30)31-10-13-7-5-4-6-8-13/h4-8,11-12,14,16H,9-10,21H2,1-3H3,(H,22,26)(H,24,25)(H,28,29)