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