InChI=1S/C20H36O8/c21-13-11-9-7-5-3-1-2-4-6-8-10-12-14-27-20-17(24)15(22)16(23)18(28-20)19(25)26/h13,15-18,20,22-24H,1-12,14H2,(H,25,26)