InChI=1S/C20H27N3O9/c1-3-23(4-2)18(28)10(8-21)5-9-6-11(22)13(24)12(7-9)31-20-16(27)14(25)15(26)17(32-20)19(29)30/h6-7,10,14-17,20,24-27H,3-5,22H2,1-2H3,(H,29,30)