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A	B	C	D	E	F
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5-Methoxy-3-aminopyridine

2-Methoxy-4-chloropyridine

5-Hydroxy-2-methoxypyridine

5-Bromo-2-methoxypyridine-3-carbaldehyde

4-Hydroxy-5-nitropyrimidine

2-Amino-4,6-dihydroxy-5-methylpyrimidine

2-Amino-4-methylpyrimidine

4,6-Dichloro-5-pyrimidinecarbaldehyde

4,5-Dichloro-6-methyl-2-(2-pyridyl)pyrimidine

2,4-Diamino-6-(4-fluorophenyl)pyrimidine

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