 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 | 6-Amino-4-chloro-3-methoxy-pyridazine | 3-Amino-5-methyl-6-hydroxypyridazine | 6-Chloro-5-methyl-pyridazin-3-ol |
| 3,5-Dichloro-6-methylpyridazine | 5-Bromo-3-hydroxypyridazine | 5-Chloro-pyridazin-3-ol | 4-Amino-1,2-dihydro-3,6-pyridazinedione |
| 4,5-dibromo-1,2-dihydropyridazine-3,6-dione | 4-Chloro-3,5,6-trimethyl-pyridazine | 3,4,6-Trimethyl-pyridazine | 3,4-Dichloro-6-methyl-pyridazine |
| 4-Chloro-3-methoxy-6-methyl-pyridazine | 4-Chloro-6-methyl-pyridazin-3-ol | 4-Amino-6-chloro-3(2H)-pyridazinone | 3-Chloro-6-methoxy-pyridazine 2-oxide |
| 2-Chloro-8-methylquinazoline | 8-Methyl-quinazoline-2,4-diol | 2,4-Dichloro-8-methyl-quinazoline | 5-Fluoro-2,3-dihydro-2-thioxo-4(1H)-quinazolinone |
| 4-Amino-6-bromo-2(1H)-quinazolinone | 6-Bromo-2-chloro-5-fluoro-quinazoline | 6-Bromo-5-fluoro-quinazolin-2-ol | 6-Bromo-7-methoxy-4(3H)-quinazolinone |
| 6-Bromo-7-fluoro-4(3H)-quinazolinone | 6-Bromo-7-methyl-4(3H)-quinazolinone | 5-Bromo-6-methyl-1H-indole-2,3-dione | 2-Amino-5-bromo-4-methyl-benzoic acid |
| 2-Bromo-4(3H)-quinazolinone | 2,4-Dibromoquinazoline | 2-Amino-8-quinazolinol | 8-Methoxy-quinazoline-2,4-diol |
| 2-Chloro-8-methoxy-quinazoline | 2-Chloro-quinazolin-8-ol | 6,8-Dibromo-4-chloro-2-methyl-quinazoline | 6,8-Dibromo-2-methyl-quinazolin-4-ol |
| 2,4-Dichloro-8-methoxyquinazoline | 2,4-Dichloro-5-methoxyquinazoline | 5-Methoxy-quinazoline-2,4-diol | 6-Bromo-7-chloro-2-(trifluoromethyl)-4(3H)-quinazolinone |
| 2,3-Dihydro-6-methyl-2-thioxo-4(1H)-quinazolinone | 3-Methyl-2H-indazol-6-amine | 7-Ethoxy-1H-indazole-5-carboxylic acid | 5-Bromo-7-ethoxy-1H-indazole |
| 7-Methoxy-1H-indazole-5-carboxylic acid | 5-Bromo-7-methoxy-1H-indazole | 5-Chloro-1,2-dihydro-6-nitro-3H-indazol-3-one | 6-Bromo-3-methoxy-1H-indazole |
| 6-Bromo-3-nitro-1H-indazole | 4-Indazolenitrile | 3-Chloro-1-methyl-4-indazolecarbonitrile | 3-Chloro-1H-indazole-4-carbonitrile |
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