2-(6-(but-3-en-1-yl)-2,3,4-trimethoxyphenyl)-7-methyl-2-((trimethylsilyl)oxy)oct-6-enenitrile

2-(6-(but-3-en-1-yl)-2,3,4-trimethoxyphenyl)-7-methyl-2-((trimethylsilyl)oxy)oct-6-enal

5-methylhex-4-enyl bromide