中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | ethyl 3-[5-amino-2,4-(1H,3H)pyrimidinedione]propanoate | 2950-92-7 | C9H13N3O4 | 227.22 |
—— | ethyl 3-[5-bis(2-hydroxyethyl)amino-2,4-(1H,3H)pyrimidinedione]propanoate | 2950-94-9 | C13H21N3O6 | 315.326 |
—— | 3-(5- |
148-08-3 | C11H15Cl2N3O4 | 324.164 |
24 Aza-Michael adducts were synthesised in moderate to excellent yields by the addition of 5-substituted uracils to acrylates with ethylamine as a catalyst. Many of the adducts were obtained in almost quantitive yield without column chromatography. The procedure provideded an efficient approach to the synthesis of N-1 uracil adducts using acrylates as acceptors. The structures of the compounds were determined by 1H NMR, 13C NMR, mass spectra and X-ray crystallography analyses. The uracil unit is present in DNA and related natural products and has a broad spectrum of biological activity.