InChI=1S/C17H26O9/c1-3-7-10(8-5-4-6-9-11(18)24-2)25-17-14(21)12(19)13(20)15(26-17)16(22)23/h3-5,7,10,12-15,17,19-21H,6,8-9H2,1-2H3,(H,22,23)/b5-4-,7-3-