Bromination

2-(2-Mercapto-4-methylthiazole-5-yl)acetic acid2-(2-Mercapto-4-methylthiazole-5-yl)acetic acid
4'-Cyanoacetophenone4'-Cyanoacetophenone
Methyl 2-(4-bromophenyl)-2,2-dimethylacetateMethyl 2-(4-bromophenyl)-2,2-dimethylacetate