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