InChI=1S/C20H28O10/c21-10-4-2-1-3-5-11-28-19(27)12-6-8-13(9-7-12)29-20-16(24)14(22)15(23)17(30-20)18(25)26/h6-9,14-17,20-24H,1-5,10-11H2,(H,25,26)