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