(S)-1-chloro-2-hydroxy-5-trimethylsilyl-4-pentyne

ethyl (5R,E)-5-(tert-butyldimethylsilyloxy)-8-trimethylsilyl-2-octen-7-ynoate

(1R,5S,7R)-1-methyl-7-(tert-butyldimethylsilyloxy)bicyclo[3.3.0]oct-2-ene

(R)-5-methyl-bicyclo<3.3.0>octen-3-one

((1R,2S)-2-(((E)-hept-1-en-6-yn-1-yl)oxy)cyclohexyl)benzene