(2E,4Z)-6-oxo-6-(2-trimethylsilylethoxy)hexa-2,4-dienoic acid

2-trimethylsilylethyl 2,4-dibromobutanoate

2-trimethylsilylethyl 2-azido-4-bromobutanoate

1-O-ethyl 6-O-methyl 3-(4-methoxyphenyl)-2-trimethylsilylhexa-2,4-dienedioate

2-trimethylsilylethyl 2-bromoacetate