InChI=1S/C19H26O8/c1-10(2)13(9-6-11-4-7-12(25-3)8-5-11)26-19-16(22)14(20)15(21)17(27-19)18(23)24/h4-10,13-17,19-22H,1-3H3,(H,23,24)