2-(4-pentyneyl)-1,3-dioxolane

(5R,6R)-5-ethyl-6-((1E,3E)-hexa-1,3-dien-5-yn-1-yl)-2,2,3,3,8,8,9,9-octamethyl-4,7-dioxa-3,8-disiladecane

9-(1,3-dioxolan-2-yl)nona-2,5-diyn-1-yl 4-methylbenzenesulfonate

methyl (2S,3R)-2,3-bis((tert-butyldimethylsilyl)oxy)pentanoate

(2S,3R)-2,3-bis((tert-butyldimethylsilyl)oxy)pentanal