InChI=1S/C21H34O8/c1-10-7-13(8-11-5-6-12(20(2,3)27)9-21(10,11)4)28-19-16(24)14(22)15(23)17(29-19)18(25)26/h8,10,12-17,19,22-24,27H,5-7,9H2,1-4H3,(H,25,26)