InChI=1/C16H20O11/c1-25-8-3-2-6(7(17)5-10(18)19)4-9(8)26-16-13(22)11(20)12(21)14(27-16)15(23)24/h2-4,7,11-14,16-17,20-22H,5H2,1H3,(H,18,19)(H,23,24)/t7?,11?,12?,13?,14?,16-/s2