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A	B	C	D	E	F
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3-Bromo-5-chloro-6-fluoropyridine

4-Bromo-3-chloropyridine

6-Methoxy-3-nitro-2-methylpyridine

3-Amino-5-Bromo-2-hydroxypyridine

5-Methyl-3-hydroxypyridine

3-Iodo-2-nitropyridine

3-Nitropyridine

Pyridine-3-sulfonyl chloride hydrochloride

2-Bromo-6-hydrazinylpyridine

2-Chloro-3-fluoro-4-methylpyridine