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A	B	C	D	E	F
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M	N	O	P	Q	R
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Y	Z

2-Cyano-3-Hydroxypyridine

5-Cyano-3-Hydroxypyridine

4-(4-Nitrophenoxy)pyridine

4-(4-Aminophenoxy)pyridine

4-(4-Fluorophenyl)piperidine

4-Iodo-1-tritylimidazole

5-amine-2-Chloropyrimidine

2-Bromo-5- aminepyrimidine

5-chloro-2-Hydroxypyrimidine

2-Hydroxy-5-nitropyrimidine

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