InChI=1S/C17H26O9/c1-3-4-7-10(8-5-6-9-11(18)24-2)25-17-14(21)12(19)13(20)15(26-17)16(22)23/h3-5,8,10,12-15,17,19-21H,6-7,9H2,1-2H3,(H,22,23)/b4-3-,8-5-