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2-Amino-5-iodopyrimidine

4,6-Diamino-5-nitropyrimidine

4,5,6-Triaminopyrimidine sulfate

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

4-Amino-2-mercaptopyrimidine

4,5-Diamino-6-mercaptopyrimidine

2,3-Dichloropyridine-4-boronic acid

4-Benzylamino-3-nitropyridine

2-Bromo-3-methoxypyridine

4-Chloropicolinonitrile