InChI=1S/C15H21NO9/c1-23-8-5-6(2-3-16)4-7(17)12(8)24-15-11(20)9(18)10(19)13(25-15)14(21)22/h4-5,9-11,13,15,17-20H,2-3,16H2,1H3,(H,21,22)