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4-Amino-6-hydroxypyrimidine

2-Amino-3-hydroxypyridine

3-Amino-5-hydroxypyridine

3-Amino-6-hydroxypyridine

3-Amino-2-hydroxypyridine

5-Acetylsalicylamide

2-Acetyl pyrrole

2-Acetylpyridine

4-Acetylpyridine

3-Acetylpyridine