5-[tert-butyl(dimethyl)silyl]oxyhept-6-en-1-yn-3-one

5-hydroxyhept-6-en-1-yn-3-one

3-tert-butyldimethylsilyloxy-1-deuteriopent-4-enal

(+/-)-3-(tert-butyldimethylsilanyloxy)pent-4-enal

(+/-)-6-hydroxy-1-(phenylmethoxy)-7-octen-2-yn-4-one