(2S,3S)-2-[(R)-1-(methoxymethoxy)allyl]hex-5-yn-1,3-diol

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

(3R,4S,5R)-3,5-bis(tert-butyldimethylsilanyloxy)-4-ethyloct-1-en-7-yne

(3S,4R)-4-(tert-butyldimethylsilanyloxy)-3-[(R)-1-(tert-butyldimethylsilanyloxy)allyl]hept-6-ynnitrile

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