2,4,6-Trimethyl-benzenesulfonic acid (2S,3S)-3-(dimethyl-phenyl-silanyl)-2-hydroxy-pent-4-enyl ester

(2S,3S)-2,4,6-trimethylbenzenesulfonic acid 3-(dimethylphenylsilanyl)-2-(trimethylsilanyloxy)pent-4-enyl ester

[4-(tert-butyldiphenylsilanyloxy)-6-(2-methoxy-4-oxobutyl)-tetrahydro-2H-pyran-2-yl]acetonitrile

{(2S,4S,6R)-4-(tert-butyldiphenylsilanyloxy)-6-[(R)-4-hydroxy-2-methoxybutyl]-tetrahydro-2H-pyran-2-yl}acetonitrile

{(2S,4S,6R)-6-[(R)-4-benzyloxy-2-methoxybutyl]-4-(tert-butyldiphenylsilanyloxy)tetrahydro-2H-pyran-2-yl}acetonitrile