InChI=1S/C21H32O8/c1-10(2)12-4-5-21(8-12)11(3)6-14(22)7-13(21)9-28-20-17(25)15(23)16(24)18(29-20)19(26)27/h11-13,15-18,20,23-25H,1,4-9H2,2-3H3,(H,26,27)