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4-Hydroxypyrimidine-5-carbonitrile

5-Fluoropyrimidine-4,6-diol

5-Cyano-4-amino-2-ethylsulfanylpyrimidine

5-Aminomethylpyrimidine-2,4-diamine

2,4-Diamino-6-ethoxypyrimidine

2,4-Diamino-6-piperidinopyrimidine

4-Bromo-2,6-dimethoxypyrimidine

2-Methoxy-4,6-dimethylpyrimidine

2-Ethoxy-4,6-difluoropyrimidine

2-Ethoxy-4,6-dichloropyrimidine