InChI=1S/C16H24O11/c17-8(7-9(18)19)5-3-1-2-4-6-10(20)26-16-13(23)11(21)12(22)14(27-16)15(24)25/h3,5,8,11-14,16-17,21-23H,1-2,4,6-7H2,(H,18,19)(H,24,25)/b5-3-