3-bromo-4-(2,2-diethoxy-ethylsulfanyl)thiophene

4-bromo-3-(t-butylsulfanyl)-2-ethynylthiophene

6-bromothieno[3,2-b]thiophene-2-carboxylic acid

(4-Bromo-thiophen-3-ylsulfanyl)-acetic acid methyl ester

(4-Bromo-2-formyl-thiophen-3-ylsulfanyl)-acetic acid methyl ester