| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| 6-氨基-3-甲基尿嘧啶 | 3-methyl-6-aminouracil | 21236-97-5 | C5H7N3O2 | 141.129 |
| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| 5,6-二氨基-3-甲基-1H-嘧啶-2,4-二酮 | 5,6-diamino-3-methylpyrimidine-2,4(1H,3H)-dione | 40959-24-8 | C5H8N4O2 | 156.144 |
| 5-乙酰氨基-6-氨基-3-甲基尿嘧啶(AAMU) | 5-Acetylamino-6-amino-3-methyluracil | 19893-78-8 | C7H10N4O3 | 198.181 |
| —— | 6-amino-5-benzylideneamino-3-methylpyrimidine-2,4(1H,3H)-dione | 75724-53-7 | C12H12N4O2 | 244.253 |
| 5-乙酰氨基-6-甲酰基氨基-3-甲基脲嘧啶 | 5-Acetylamino-6-formylamino-3-methyluracil | 85438-96-6 | C8H10N4O4 | 226.192 |
| —— | N-(6-Acetylamino-3-methyl-2,4-dioxo-1,2,3,4-tetrahydro-pyrimidin-5-yl)-acetamide | —— | C9H12N4O4 | 240.219 |
Pyrimidine-diones, Caffeine Metabolites, Synthesis 5-Acetylamino-6-amino-3-methyluracil (AAMU) and 5-acetylamino-6-formylamino-3-methyluracil (AFMU) have been prepared by simple chemical transformations starting from thiourea and ethyl cyanoacetate. These compounds AAMU and AFMU are required as standard materials for qualitative identification and quantitative determination in connection with the metabolism of caffeine.