4-Bromo-1,2-dimethyl-1H-imidazole

4-Bromo-2,3-difluoroaniline

4-Bromo-3-methoxybenzonitrile

4-Bromo-6-fluoro-1,3-benzothiazol-2-amine

4-Carboxy-2,3-difluorophenylboronic acid

4-chloro-3′-methoxybenzophenone

4-Chloro-5-(4-ethoxyphenyl)-2,6-dimethylthieno[2,3-d]pyrimidine

4-Chloro-6-isopropyl-2-methylpyrimidine

4-Chloro-N-(2-propynyl)benzenesulfonamide

4-Cyano-3-isopropoxyphenylboronic acid

4-Cyanomethoxy-3,5-dimethylphenylboronic acid pinacol ester

4-cyclopropyl-benzeneboronic acid

4-Ethyl-N-(2-propynyl)benzamide

4-Fluoro-2-(methylthio)phenylboronic acid

4-Fluoroisatoic anhydride