Acetic acid (2S,3R,4R,5R,6R)-3-benzyloxy-5-chloro-6-chloromethyl-2-methoxy-tetrahydro-pyran-4-yl ester

Acetic acid (2S,3R,4S,6R)-4-benzyloxy-2-methoxy-6-methyl-tetrahydro-pyran-3-yl ester

(2S,3R,4S,6R)-3-Benzyloxy-2-methoxy-4-methoxymethoxy-6-methyl-tetrahydro-pyran