InChI=1S/C21H34O8/c1-20(2,27)12-8-7-11-5-4-6-13(21(11,3)9-12)10-28-19-16(24)14(22)15(23)17(29-19)18(25)26/h5,12-17,19,22-24,27H,4,6-10H2,1-3H3,(H,25,26)