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