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2,5-Dichloropyrazine

2,5-Dibromopyrazine

2-Amino-3-methylpyrazine

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

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