 5-Oxo-[1,4]diazepane-1-carboxylic acid tert-butylester | 1,4-Diazepan-5-one hydrochloride | 4-Perhydroazepinone hydrochloride | 2-Bromo-1-pyrazin-2-yl-ethanone |
| 1-Benzhydrylazetidin-3-ol | Tetrahydrothiopyran-4-one S,S-dioxide | 4-Phenyl-1H-1,2,3-triazole | [1,2,4]Triazolo[4,3-a]pyridin-3(2H)-one |
| 2-Phenylisoindole-1,3-dione | tert-Butyl 2,5-dihydro-1H-pyrrole-1-carboxylate | 1H-Pyrazole-4-carboxylic acid | 2-Amino-4-morpholino-6-methylpyrimidine |
| 2-Amino-5-bromo-4,6-dimethylpyrimidine | 1,3-Dimethyl-5-bromoorotic acid | 4-Amino-2-chloro-5-fluoropyrimidine | 5-Bromocytosine |
| 2-Amino-4-piperidino-6-methylpyrimidine | 2-Amino-4-phenoxy-6-methylpyrimidine | 2-Amino-5-bromo-4-hydroxy-6-phenylpyrimidine | 2-Amino-6-fluoro-4-hydrazinopyrimidine |
| 2-Amino-4-fluoro-6-phenoxypyrimidine | 2-Amino-4-chloro-6-phenylpyrimidine | 2,4-Diamino-6-fluoropyrimidine | 5-Bromo-4,6-dihydroxypyrimidine |
| 2-Amino-6-fluoro-4-methoxypyrimidine | 2-Amino-4-hydroxy-6-phenylpyrimidine | 2-Amino-4-hydroxy-6-phenoxypyrimidine | 2-Amino-4-hydroxy-6-hydrazinopyrimidine |
| 2-Amino-4-hydrazino-6-methylpyrimidine | 2-Amino-4,6-difluoropyrimidine | 4,6-Dichloro-2-methylmercaptopyrimidine | 2-Chloropyrimidine |
| 4-Amino-2-(ethylthio)-5-pyrimidinecarboxylic acid ethyl ester | 4-Amino-2-(ethylthio)-5-(hydroxymethyl)pyrimidine | 2,4-Diamino-6-hydroxypyrimidine | 4,6-Dimethoxy-2-methylpyrimidine |
| 4,6-Dichloro-2-methylpyrimidine | 5-Fluoro-4-hydroxypyrimidine | 4-Ethyl-5-fluoro-6-hydroxypyrimidine | 4-Ethyl-5-fluoropyrimidine |
| 2,4,5-Trichloropyrimidine | 2,4-Dichloro-5-fluoropyrimidine | 3-Bromoimidazo[1,2-a]pyrimidine | 5-Bromo-2,4-dichloropyrimidine |
| 2,4-Bis(benzyloxy)pyrimidine-5-boronic acid | Benzyl 2-chloro-4-(trifluoromethyl)pyrimidine-5-carboxylate | 4-Aminopyrimidine-5-carbonitrile | 2-[N-(4-Aminophenyl)amino]-4,6-dimethylpyrimidine |
| 2-Amino-5-nitropyrimidine | 4-Amino-2-(methylthio)pyrimidine-5-carboxamide | 2-Amino-4-hydroxy-6-(trifluoromethyl)pyrimidine | 4-Amino-5-cyano-2-methylpyrimidine |
| 4-Amino-2-chloro-5-pyrimidinecarbonitrile | 5-Acetyl-2-amino-4-methylpyrimidine | 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 |
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