InChI=1S/C26H36O7/c1-15(2)23(31-18(5)27)13-24(32-19(6)28)22-14-30-26(33-20(7)29)25-17(4)10-8-9-16(3)11-12-21(22)25/h9,14,21,23-26H,1,4,8,10-13H2,2-3,5-7H3/b16-9-/t21-,23+,24-,25-,26+/m1/s1