中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 6-amino-1,3-dimethyl-5-thioformyluracil | 181465-38-3 | C7H9N3O2S | 199.233 |
1,3-二甲基-6-氨基脲嘧啶 | 6-Amino-1,3-dimethylbarbituric acid | 6642-31-5 | C6H9N3O2 | 155.156 |
—— | 6-azido-1,3-dimethyluracil | 61541-41-1 | C6H7N5O2 | 181.154 |
The reaction of 6-aminouracil 1 with formaldehyde and secondary amines in ethanol at room temperature gave the corresponding 5-alkylaminomethyl derivatives (2a-c) and bis(4- pyrimidyl) methane (4). Also, Mannich reaction with primary aliphatic and aromatic amines at room temperature afforded pyrimid[4,5-d]pyrimidine (5 and 6).
Treatment of 1 with o-phenylenediamine through transamination gave com pound 7 which cyclized through intramolecular Mannich reaction with formalin to yield pyrimido[4,5-e]-[l,4]diazepine (8).