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