 4,6-Dihydroxy-2-methylpyrimidine | 5,6-Diamino-4-hydroxy-2-mercaptopyrimidine | 6-Chloro-1,3-dimethyl-2,4(1H,3H)-pyrimidinedione | 5-Methoxy-2-sulfanyl-4-pyrimidinol |
| 4-Propoxypyrimidine-2-thiol | 2-Mercapto-6-(methoxymethyl)pyrimidin-4-ol | 2-Mercapto-6-methylpyrimidin-4-ol | 2-Chloro-4-hydroxy-5-fluoropyrimidine |
| 2-Mercapto-6-propylpyrimidin-4-ol | L-2-Mercapto-4-hydroxy-5-fluoropyrimidine | 5-Fluoro-2-methoxy-3H-pyrimidin-4-one | 2-Ethoxy-5-fluoro-4(3H)-pyrimidinone |
| 1-(2-Hydroxyethyl)pyrimidine-2,4(1H,3H)-dione | 1-Methyl-2,4(1H,3H)-pyrimidinedione | 2-Amino-4,6-dichloro-5-formamidopyrimidine | 2-Chloro-4,6-dimethoxypyrimidine |
| 2,4-Dichloro-5-methoxypyrimidine | 2,4,6-Triamino-5-nitropyrimidine | 6-Hydroxynicotinic acid ethyl ester | 6-Hydroxynicotinohydrazide |
| 6-Hydroxynicotinic acid methyl ester | 4-Amino-3-nitro-2-pyridinol | 4-Amino-5-nitro-2-pyridinol | 3,4-Diamino-2-pyridinol |
| 2,4,5-Triaminopyridine | Pyridine-2,3,4-triamine | 2-Chloro-3,4-pyridinediamine | 6-Chloropyridine-3,4-diamine hydrochloride |
| 2,4-Dichloro-3-nitropyridine | 4-Amino-2-chloro-3-nitropyridine | 4-Amino-2-chloro-5-nitropyridine | 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 | 5-Isopropyl-2-pyrimidinamine | 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-Dimethyl-2-methylsulfanylpyrimidine | 4-Methyl-6-chloropyrimidine | 2-Aminopyrimidin-5-ol |
| 4-(4,6-Dichloropyrimidin-2-yl)morpholine | 4,6-Dichloro-2-methyl-5-nitropyrimidine | 5-Bromopyrimidine | 4,6-Dihydroxy-2-methylthiopyrimidine |
| 5-Bromo-4,6-dichloropyrimidine | 2,4-Dimercapto-5,6-diaminopyrimidine | 5-Amino-4-methylpyrimidine | 5-Bromo-4-methylpyrimidin-2-ylamine |
| 2-Amino-4-methylpyrimidine-5-carbonitrile | 4,6-Dimethylpyrimidine | 6-(2,6-Dichlorophenoxy)pyrimidine-2,4-diamine | 6-Hydroxy-2,4,5-triaminopyrimidine |
| 4,6-Dimethylpyrimidine-2-sulfonamide | Ethyl 4-pyrimidinecarboxylate | Pyrimidine-5-carbaldehyde | 2-Methoxypyrimidine-5-carbaldehyde |
| 2-(Methylthio)pyrimidine-5-carbaldehyde | 2-Ethylpyrimidine-5-carbaldehyde | 5-Bromo-2,4-dimethoxypyrimidine | 6-Hydroxy-2-methylpyrimidine-4-acetic acid methyl ester |
| 2-Chloro-4,6-dimethylpyrimidine | 2,4,6-Trichloropyrimidine-5-carbaldehyde | 5-Chloro-2-iodopyrimidine | 4-Hydroxypyrimidine-5-carboxylic acid methyl ester |
| 2,4,6-Trifluoropyrimidine | 4-Hydroxypyrimidine-5-carbonitrile | 2-Chloro-5-methylpyrimidine | 5-Fluoropyrimidine-4,6-diol |
| 5-Cyano-4-amino-2-ethylsulfanylpyrimidine | 5-Aminomethylpyrimidine-2,4-diamine | 5-Chlorouracil | 5-Iodouracil |
| 4,5,6-Trichloropyrimidine | Uracil-5-carboxylic acid monohydrate | 2,4-Diamino-6-ethoxypyrimidine | 2,4-Diamino-6-piperidinopyrimidine |
| 4-Bromo-2,6-dimethoxypyrimidine | 2,4-Dihydroxy-5-nitropyrimidine | 5-Nitro-6-methyluracil | 2-Methoxy-4,6-dimethylpyrimidine |
| 2-Ethoxy-4,6-difluoropyrimidine | 2-Ethoxy-4,6-dichloropyrimidine | 2-Ethoxy-4,6-dihydroxypyrimidine | 2-(Hydroxymethyl)pyrimidine |
| (2-Amino-4-hydroxy-6-methyl-pyrimidin-5-yl)-acetic acid ethyl ester | 2-Methylsulfanyl-pyrimidine-4-carboxylic acid | 4-Pyrimidinol | 5-Amino-2,4-dichloropyrimidine |
| 2-(Chloromethyl)pyrimidine | 4-Amino-2,6-dihydroxypyrimidine | 4-Ethyl-5-fluoropyrimidine | 4-Chloro-7-methoxyquinazoline |
| 4-Chloro-5-methylpyrimidine | 4-Chloro-5-ethylpyrimidine | 2-Trifluoromethylpyrimidine | 6-Trifluoromethyl pyrimidin-4-ylamine |
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