InChI=1S/C16H26O8/c1-9(2)4-3-5-10(6-7-17)8-23-16-13(20)11(18)12(19)14(24-16)15(21)22/h4,6,11-14,16-20H,3,5,7-8H2,1-2H3,(H,21,22)/b10-6+