(2R,3R,4R)-1-pivalic acid 3-(tert-butyldimethylsilanyloxymethyl)-2-hydroxy-4-methoxymethoxyhex-5-enyl ester

(4S,5R)-5-(tert-butyldimethylsilanyloxy)-4-[(R)-1-(tert-butyldimethylsilanyloxy)allyl]oct-7-yn-1-ol

1-pivalic acid (2S,3S)-3-(tert-butyldimethylsilanyloxy)-2-[(R)-1-(tert-butyldimethylsilanyloxy)allyl]hex-5-ynyl ester

(5S,6R)-6-(tert-butyldimethylsilanyloxy)-5-[(R)-1-(tert-butyldimethylsilanyloxy)allyl]non-8-ynnitrile