InChI=1S/C16H24O11/c17-9(18)7-5-3-1-2-4-6-8(14(22)23)26-16-12(21)10(19)11(20)13(27-16)15(24)25/h1,3,8,10-13,16,19-21H,2,4-7H2,(H,17,18)(H,22,23)(H,24,25)/b3-1-