1-para-methoxybenzyloxy-2R-tert-butyldimethylsiloxy-3S-methyl-4-hexyne

3R-(tert-butyl-dimethylsilanyloxy)-4-(4-methoxy-benzyloxy)-2R-methyl-butyric acid methyl ester

5R-tert-butyldimethylsiloxy-2S,4S-dimethyl-6-benzyloxy-1-iodohexane

3S,5,7S,9S-tetramethyl-11-benzyloxy-1-paramethoxybenzyloxy-2R,10R-bis-(tert-butyldimethylsiloxy)-4E-undecene

2R,10R-bis-(tert-butyldimethylsiloxy)-3S,5S,7R,9S-tetramethyl-11-benzyloxy-1-hydroxy-undecene