InChI=1S/C15H21NO9/c1-16-5-8(18)6-2-3-7(17)9(4-6)24-15-12(21)10(19)11(20)13(25-15)14(22)23/h2-4,8,10-13,15-21H,5H2,1H3,(H,22,23)