(3R)-1-(trimethylsilyl)-5-(triphenylmethoxy)pent-1-yn-3-ol

(R)-tert-butyldimethyl((1-(trimethylsilyl)-5-(trityloxy)pent-1-yn-3-yl)oxy)silane

(R)-1-(trimethylsilyl)hex-5-en-1-yn-3-ol

(3R)-3-(tert-butyldimethylsiloxy)-1-(trimethylsilyl)pent-1-yn-5-ol

Methanesulfonic acid (R)-3-(tert-butyl-dimethyl-silanyloxy)-5-trimethylsilanyl-pent-4-ynyl ester