8-prop-2-ynoxyoct-1-en-6-yne

trimethyl(3-prop-2-ynoxyprop-1-ynyl)silane

(oxybis(prop-1-yne-3,1-diyl))bis(trimethylsilane)

trimethyl-(6-methyl-4-trimethylsilyl-1,3-dihydrofuro[3,4-c]pyridin-7-yl)silane