4,4-dimethyl-7-trimethylsilylhept-6-yne-1,2-diol

4,4-dimethyl-2-trimethylsilyl-7-trimethylsilyloxyhept-6-en-1-yne

3,3-dimethyl-5-hexyn-1-ol

tert-butyl((6,6-dibromo-3,3-dimethylhex-5-en-1-yl)oxy)dimethylsilane