InChI=1S/C21H32O8/c1-11(2)9-14(22)10-12(3)13-5-7-21(4,8-6-13)29-20-17(25)15(23)16(24)18(28-20)19(26)27/h5,7,9,12-13,15-18,20,23-25H,6,8,10H2,1-4H3,(H,26,27)