InChI=1S/C23H34O8/c1-12(24)30-10-20(2)5-4-6-21-11-31-23(28,19(27)17(20)21)22-8-13(7-15(25)16(21)22)14(9-29-3)18(22)26/h13-17,19,25,27-28H,4-11H2,1-3H3