InChI=1S/C21H34O8/c1-11-6-14(24)7-12(2)21(11)5-4-13(8-21)20(3,10-23)29-19-18(27)17(26)16(25)15(9-22)28-19/h6,12-13,15-19,22-23,25-27H,4-5,7-10H2,1-3H3