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1H-Pyrrolo[2,3-d]pyrimidine-2,4-diamine

2-Amino-7-methyl-1H-purin-6(7H)-one

3-Methylpyrimidine-2,4(1H,3H)-dione

5-Methylpyrimidine-2,4(1H,3H)-dithione

6-Aminopurine-8(9H)-thione

N-(2-Oxo-2,3-dihydropyrimidin-4-yl)propionamide

1H-Pyrazolo[4,3-d]pyrimidin-7-amine

4-Amino-2-hydroxypyrimidine-5-carbonitrile

6-Chloro-1-methylpyrimidine-2,4(1H,3H)-dione

5-Methyldihydropyrimidine-2,4(1H,3H)-dione

1-Acetylpyrimidine-2,4(1H,3H)-dione

1-Allylpyrimidine-2,4(1H,3H)-dione

6-Amino-1-methylpyrimidin-2(1H)-one

6-(Dimethylamino)-1-methylpyrimidine-2,4(1H,3H)-dione

2,4-Dioxo-1,2,3,4-tetrahydropyrimidin-5-yl acetate

1-Methyl-6-propylpyrimidine-2,4(1H,3H)-dione

1-Pentylpyrimidine-2,4(1H,3H)-dione

1-Isopropylpyrimidine-2,4(1H,3H)-dione

6-(Piperidin-1-yl)-9H-purine

8-Bromoguanine

2-Amino-9-ethyl-1H-purin-6(9H)-one

2-Amino-9-methyl-1H-purin-6(9H)-one

Pyrimidine-2,4(1H,3H)-dithione

4,6-Dichloro-7H-pyrrolo[2,3-d]pyrimidine

4-Aminopyrrolo[3,2-d]pyrimidine

7H-Pyrrolo[2,3-d]pyrimidin-2-amine

5-Amino-1,4-dihydro-7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one

7H-Purine-6,8-diol

4-Methoxy-7H-pyrrolo[2,3-d]pyrimidin-2-amine

N-Benzyl-2-chloro-9H-purin-6-amine