(2S,3R)-1-benzyloxy-2-[(tert-butyldimethylsilyl)oxy]-3-methyl-5-hexyne

9-[(2-ethynylphenyl)ethynyl]anthracene

1-ethynyl-4,5-dimethoxy-2-(2-phenylethynyl)benzene

1-((4-bromophenyl)ethynyl)-2-ethynylbenzene