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

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

2,4,6-Trimethyl-benzenesulfonic acid (3S,4R)-4-(tert-butyl-dimethyl-silanyloxy)-3-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-allyl]-hept-6-ynyl ester

(2S,3S)-3-(tert-butyldimethylsilanyloxy)-2-[(R)-1-(tert-butyldimethylsilanyloxy)allyl]hex-5-yn-1-ol

3-deoxy-1,2-O-isopropylidene-3-C-methylene-5-O-pivaloyl-α-D-xylopentofuranoside