2,2-Dimethyl-propionic acid (2S,3R,4R,5S)-4-benzyloxy-5-(tert-butyl-dimethyl-silanyloxy)-2-methoxy-6-methylene-tetrahydro-pyran-3-yl ester

2,2-Dimethyl-propionic acid (2S,3R,4R,5R,6S)-4-benzyloxy-5-(tert-butyl-dimethyl-silanyloxy)-6-hydroxymethyl-2-methoxy-tetrahydro-pyran-3-yl ester

Benzoic acid (2S,3R,4R,5R,6S)-4-benzyloxy-5-(tert-butyl-dimethyl-silanyloxy)-6-hydroxymethyl-2-methoxy-tetrahydro-pyran-3-yl ester

(2R,3S,4R,5R,6S)-4-Benzyloxy-3-(tert-butyl-dimethyl-silanyloxy)-5-(2,2-dimethyl-propionyloxy)-6-methoxy-tetrahydro-pyran-2-carboxylic acid methyl ester

2,2-Dimethyl-propionic acid (2S,3R,4S,5S)-4-benzyloxy-5-hydroxy-2-methoxy-6-methylene-tetrahydro-pyran-3-yl ester