7-bromo-2-(4-bromo-2-butynyl)-5-heptynyl [1-(tert-butyl)-1,1-dimethylsilyl] ether

2-(2-propynyl)-5-hexyn-1-ol

methyl 2-(2-propynyl)-5-hexynoate

1-(tert-butyl)-1,1-dimethylsilyl [2-(2-propynyl)-5-hexynyl]ether

1,10-dihydroxy-5-tert-butyldimethylsiloxymethyl-2,8-decadiyne