 2,4,6-Trichloro-5-methoxy-pyrimidine | 2-Ethoxy-6-methyl-5-nitro-4(3H)-pyrimidinone | 2-Chloro-6-methyl-5-nitro-3H-pyrimidin-4-one | 4-Mercaptopyrimidine-2,6-dione |
| 5-Bromo-2,6-dimethyl-4(3H)-pyrimidinone | 2,6-Dimethyl-pyrimidin-4-ol | 5-Chloro-2-methyl-4-pyrimidinecarbonitrile | 5-Chloro-2-methyl-pyrimidine-4-carboxylic acid |
| 5-Chloro-2-methyl-pyrimidine-4-carboxylic acid ethyl ester | 5-Chloro-2-methyl-pyrimidine-4-carboxylic acid amide | 5-Bromo-2-methyl-4-pyrimidinecarbonitrile | 5-Bromo-2-methyl-pyrimidine-4-carboxylic acid ethyl ester |
| 5-Bromo-2-methyl-pyrimidine-4-carboxylic acid amide | 5-Chloro-2-methoxy-4-pyrimidinamine | 2,5-Dichloro-pyrimidin-4-ylamine | 2-Amino-4,5-dichloropyrimidine |
| 2-Acetyl-4-chloropyrimidine | 2-Iodo-4-methoxy-pyrimidine | 1-(4-Methoxy-pyrimidin-2-yl)-ethanone | 5-Bromo-4-chloro-6-ethyl-pyrimidine |
| 4(1H)-Pyrimidinone, 6-ethyl- (9CI) | 5-Bromo-6-ethyl-pyrimidin-4-ol | 4-Chloro-2,6-dimethoxy-5-Pyrimidinecarboxaldehyde | 5-Bromo-2,3-dihydro-2-thioxo-4(1H)-pyrimidinone |
| 4,6-Dichloro-5-iodo-2-methyl-pyrimidine | 6-chloro-2-methyl-1H-pyrimidin-4-one | 6-Chloro-5-iodo-2-methyl-pyrimidin-4-ol | 2-Amino-4-chloro-6-methyl-5-pyrimidinecarbonitrile |
| 2-Amino-4-hydroxy-6-methyl-pyrimidine-5-carbaldehyde | 2-Amino-6-hydroxy-5-methoxy-4(3H)-pyrimidinone | 4-Chloro-6-methoxy-2-methyl-pyrimidine | 2-Chloro-5-hydroxy-6-methyl-4(3H)-pyrimidinone |
| 2-Amino-5-iodo-6-chloro-4-pyrimidinol | 2-Amino-6-chloro-pyrimidin-4-ol | 4,6-Dichloro-2-methoxy-5-pyrimidinecarbonitrile | 5,6-Diethyl-2,3-dihydro-2-thioxo-4(1H)-pyrimidinone |
| 6-Ethyl-5-methyl-2,4(1H,3H)-pyrimidinedione | 7-Ethoxy-3-iodo-imidazo[1,2-a]pyridine | 7-Chloro-1,8a-dihydro-imidazo[1,2-a]pyridine | 7-Ethoxy-imidazo[1,2-a]pyridine |
| 3-Iodo-7-(trifluoromethyl)-imidazo[1,2-a]pyridine | 7-Trifluoromethyl-1,8a-dihydro-imidazo[1,2-a]pyridine | 7-Ethyl-imidazo[1,2-a]pyridine | 3-Iodo-imidazo[1,2-a]pyridine-7-carbonitrile |
| 6H-Pyrido[1,2-a]pyrimidine-8-carbonitrile | 5-Bromo-imidazo[1,2-a]pyridine-2-carboxylic acid | 5-Bromo-imidazo[1,2-a]pyridine-2-carboxylic acid ethyl ester | 6-Iodoimidazo[1,2-a]pyridin-2-amine |
| 7-Chloro-3-iodoimidazo[1,2-a]pyridine | 7-Chloro-imidazo[1,2-a]pyridine | 6-Bromo-2-chloro-imidazo[1,2-a]pyridine | 6-Bromo-imidazo[1,2-a]pyridin-2-one |
| 6-Bromo-imidazo[1,2-a]pyridin-8-amine | 6-Bromo-8-fluoroimidazo[1,2-a]pyridine | 8-Bromo-5-chloroimidazo[1,2-a]pyridine | 2-Bromo-3,5-dimethoxy-pyrazine |
| 2-Chloro-3-methoxy-5-methyl-pyrazine | 3,6-Dichloro-2-pyrazinecarbonitrile | 2-Chloro-3-cyano-5,6-diethylpyrazine | 4-chloro-5-nitropyrimidine |
| 4-Chloro-6-methoxy-5-nitro-pyrimidine | 4-Methoxy-5-nitropyriMidine | 5-Nitro-pyrimidin-4-ol | 3,5-Dichloro-2(1H)-pyrazinone |
| 3,5-Dichloro-pyrazin-2-ylamine | 6-Methylpyrazine-2-carboxaldehyde | 3,6-Dichloro-5-methylpyrazine | 5-Chloro-3-methyl-pyrazin-2-ylamine |
| 5-Chloro-3-methyl-pyrazin-2-ol | 3-Methoxy-2,6-dimethylpyrazine | 3-Chloro-6-methyl-2(1H)-pyrazinone | 5-Bromo-3-methoxy-2(1H)-pyrazinone |
| 3,5-Dibromo-pyrazin-2-ylamine | 5-Bromo-3-methoxy-pyrazin-2-ylamine | 3-Chloro-6-methyl-2-pyrazinamine | 2-Bromo-5-methyl-pyrazine |
| Pyrazinecarboxaldehyde, 3-aMino-5,6-dichloro- | 2,3-Dimethyl-5-hydroxypyrazine | 2,3-Dichloro-5,6-dimethylpyrazine | 3-Hydroxy-5,6-dimethyl-pyrazine-2-carboxylic acid amide |
| 3-Amino-5,6-dimethyl-pyrazin-2-ol | 2,3-Dichloro-5-methylpyrazine | 5-METHYL-PYRAZIN-2-YLAMINE | 3,5-Dimethoxy-2-pyrazinamine |
| 2,6-Dimethoxy-pyrazine | 2,3-Diamino-5,6-dichloropyrazine | METHYL 3-AMINO-5,6-DICHLORO-2-PYRAZINECARBOXYLATE | 5,6-Dichloro-3-nitro-pyrazin-2-ylamine |
| 3-Amino-2-chloro-5-methoxypyrazine | 2,3,5-Piperazinetrione | 3-Amino-5-methyl-2-pyrazinecarboxylic acid | 7-Methyl-pteridine-2,4-diol |
| 3-Amino-5,6-dichloropyrazine-2-carboxylic acid | 6-Chloro-4-ethylpyridazin-3-amine | 3,6-Dichloro-4-ethyl-pyridazine | 5-Chloro-4-iodo-3(2H)-pyridazinone |
| 3,6-Dimethoxy-4-pyridazinecarboxaldehyde | 6-Chloro-4-iodo-3-methoxypyridazine | 4,6-Dichloro-3-methoxy-pyridazine | 4-Amino-3-methyl-pyridazine |
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