 2-Methoxy-7H-pyrrolo[2,3-d]pyrimidin-4-ol | 2-Methyl-7H-pyrrolo[2,3-d]pyrimidine | 2-Methyl-7H-pyrrolo[2,3-d]pyrimidin-4-ol | 4-Chloro-2-methyl-7H-pyrrolo[2,3-d]pyrimidine |
| 4-Chloro-6-methyl-7H-pyrrolo[2,3-d]pyrimidine | 5,7-Dihydro-6H-pyrrolo[2,3-d]pyrimidin-6-one | 4-Chloro-5,7-dihydro-pyrrolo[2,3-d]pyrimidin-6-one | 5-Methyl-7H-pyrrolo[2,3-d]pyrimidin-4-amine |
| 4,6-Dichloro-1-ethyl-1H-pyrazolo[3,4-d]pyrimidine | 1-Methyl-1H-pyrazolo[3,4-d]pyrimidine-4,6-diamine | 6-Methoxy-1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine | 4,6-Dichloro-1-methyl-1H-pyrazolo[3,4-d]pyrimidine |
| 6-Chloro-1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4-ylamine | 6-Chloro-4-methoxy-1H-pyrazolo[3,4-d]pyrimidine | 7-Chloro-1H-pyrazolo[4,3-d]pyrimidine | 1H-Pyrazolo[4,3-d]pyrimidin-7-ol |
| 5-Chloro-1H-pyrazolo[4,3-d]pyrimidine | 2,4-Dichloro-6-methyl-pyrimidin-5-ylamine | 2-Chloro-4-methyl-pyrimidin-5-ylamine | 2,5-Dimethyl-1,2-dihydro-oxazolo[5,4-d]pyrimidine |
| 3-Iodo-1H-pyrazolo[4,3-d]pyrimidin-7-amine | 4-Amino-2H-pyrazole-3-carbonitrile | 1H-Pyrazolo[4,3-d]pyrimidin-7-ylamine | 3-Bromo-7-chloro-1-methyl-1H-pyrazolo[4,3-d]pyrimidine |
| 7-Ethyl-1,7-dihydro-6H-purin-6-one | 6-Chloro-7-ethyl-7H-purine | 2-Methoxy-6-methyl-9H-purine | 2-Chloro-6-methyl-pyrimidine-4,5-diamine |
| 2-Methoxy-6-methyl-pyrimidine-4,5-diamine | 2,6-Dichloro-7,9-dihydro-8H-purin-8-one | 2,6-Dichloro-pyrimidine-4,5-diamine | 1,2,3,9-Tetrahydro-8-methyl-2-thioxo-6H-purin-6-one |
| 2,8-Dichloro-9H-purine | 2-Chloro-5-nitro-pyrimidin-4-ylamine | 2-Chloro-pyrimidine-4,5-diamine | 2-Chloro-9H-purine-8-thiol |
| 7-Butyl-1,7-dihydro-6H-purin-6-one | 7-Butyl-6-chloro-7H-purine | 2-Ethoxy-9-methyl-9H-purin-6-amine | 6-Amino-3,9-dihydro-9-methyl-2H-purin-2-one HBr |
| 5-Chloro-[1,3]thiazolo[5,4-d]pyrimidin-2-amine | 5-Chloro-7-methyl-thiazolo[5,4-d]pyrimidine | 5-Amino-2-chloro-6-methyl-pyrimidine-4-thiol | Thiazolo[4,5-d]pyrimidine-2,7-diamine, hydrate (1:1) |
| 7-Amino-thiazolo[4,5-d]pyrimidin-2(3H)-one | Thiazolo[4,5-d]pyrimidine-2,7-diamine | 2-Chloro-thiazolo[4,5-d]pyrimidin-7-ylamine | 7-Amino-thiazolo[4,5-d]pyrimidine-2-thiol |
| 2,6-Dichloro-5-methoxy-4-pyrimidinamine | 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 |
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