(6-fluoro-3,4,5-trihydroxy-tetrahydro-pyran-2-yl-methyl)-carbamic acid 9H-fluoren-9-ylmethyl ester

[3,4,5-trihydroxy-6-(2-oxo-2,6,7,7a-tetrahydro-benzofuran-6-yloxy)-tetrahydro-pyran-2-ylmethyl]-carbamic acid 9H-fluoren-9-ylmethyl ester

acetic acid 3,5-diacetoxy-2-[(9H-fluoren-9-yl-methoxycarbonylamino)-methyl]-6-(2-oxo-2,6,7,7a-tetrahydro-benzofuran-6-yloxy)-tetrahydro-pyran-4-yl ester