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2-Chloro-3-nitropyridin-4-ol

5-Methylpyridin-3-ylamine

(5-Bromopyridin-2-yl)hydrazine

2,4-Diaminopyrimidine-5-carboxaldehyde

2,4-Diamino-5-cyanopyrimidine

Pyrimidine-4,5,6-triamine

2-Hydroxy-4-trifluoromethylpyrimidine-5-carboxylic acid ethyl ester

4-Hydroxypyrimidine-5-carboxylic acid ethyl ester

(4-Hydroxy-2,6-dimethylpyrimidin-5-yl)acetic acid

4,6-Dimethylpyrimidine

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