Grundmann’s ketone

(8E)-8-bromomethylene-de-A,B-cholestane

(R)-trimethyl(3-(oxiran-2-yl)prop-1-yn-1-yl)silane

(S)-1-(trimethylsilyl)oct-7-en-1-yn-4-ol

{(S)-3-[1-Bromo-meth-(Z)-ylidene]-4-methylene-cyclohexyloxy}-tert-butyl-dimethyl-silane