InChI=1S/C23H40O7/c1-2-3-6-9-17(26)12-13-20-19(21(27)14-22(20)28)10-7-4-5-8-11-23(29)30-18(15-24)16-25/h12-13,17-21,24-27H,2-11,14-16H2,1H3/b13-12+/t17-,19+,20+,21-/m0/s1