2-methyl-2-prop-2-ynylpent-4-en-1-ol

4-(butoxymethyl)-4-methylhept-1-en-6-yne

2-but-3-yn-2-ylpent-4-en-1-ol

4-(butoxymethyl)-5-methylhept-1-en-6-yne

4-(2-methoxyethyl)hept-1-en-6-yne