ethyl 4-(3-formylpropyl)benzoate

ethyl 4-(3-bromo-4-oxobutyl)benzoate

4-[3-(2,4-Diamino-6-oxo-1,6-dihydro-pyrimidin-5-yl)-4,4-dimethoxy-butyl]-benzoic acid tert-butyl ester

4-((E)-4-Nitro-but-3-enyl)-benzoic acid ethyl ester