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5-Chloro-2-hydroxypyrazine

5-Bromopyrazin-2-ol

3,5-Bromopyrazin-2-ol

2,4-Dichloro-6-methyl-5-nitropyrimidine

5-Chloro-2-(methylthio)pyrimidine-4-carboxylic acid

4-Methylpyridine-3-boronic acid

3-Cyano-4-fluorobenzeneboronic acid

6-Bromopyridine-2-boronic acid pinacol ester

4-Bromobenzocyclobutene

4-Carboxylbenzocyclobutene