InChI=1S/C20H24O7/c1-6-8(2)18(22)24-11-7-20(5)17(27-20)16-14(25-16)10(4)13(21)15-12(11)9(3)19(23)26-15/h6,11-17,21H,3-4,7H2,1-2,5H3/b8-6-/t11-,12+,13-,14-,15-,16-,17+,20+/m0/s1