InChI=1S/C22H40O8/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-18(24)30-16-17(23)19(25)20(26)21(27)22(28)29/h17,19,23,25-27H,2-16H2,1H3,(H,28,29)/b21-20-/t17-,19+/m0/s1