反应方程式
[P:1]([O:5][CH2:6][C@H:7]1[O:11][C@@H:10]([N:12]2[CH:19]=[CH:18][C:16](=[O:17])[NH:15][C:13]2=[O:14])[C@H:9]([OH:20])[C@@H:8]1[OH:21])([OH:4])([OH:3])=[O:2].[P:22]([O:34][CH2:35][C@H:36]1[O:40][C@@H:39]([N:41]2[CH:48]=[CH:47][C:45](=[O:46])[NH:44][C:42]2=[O:43])[C@H:38]([OH:49])[C@@H:37]1[OH:50])([O:25][P:26]([O:29][P:30](O)([OH:32])=[O:31])([OH:28])=[O:27])(=[O:24])[OH:23].C([NH+:55](CCCC)CCCC)CCC>CN(C=O)C.C(N(CCCC)CCCC)CCC>[NH4+:12].[NH4+:41].[NH4+:55].[NH4+:12].[O-:4][P:1]([O:5][P:30]([O:29][P:26]([O:25][P:22]([OH:24])([OH:34])=[O:23])([O-:28])=[O:27])([O-:32])=[O:31])(=[O:2])[O-:3].[C@@H:10]1([N:12]2[CH:19]=[CH:18][C:16](=[O:17])[NH:15][C:13]2=[O:14])[O:11][C@H:7]([CH2:6][OH:5])[C@@H:8]([OH:21])[C@H:9]1[OH:20].[C@@H:39]1([N:41]2[CH:48]=[CH:47][C:45](=[O:46])[NH:44][C:42]2=[O:43])[O:40][C@H:36]([CH2:35][OH:34])[C@@H:37]([OH:50])[C@H:38]1[OH:49]参与物
反应条件
- 温度
- 50 °C
实验过程
Uridine 5′-monophosphate (Sigma, Milwaukee, 3.0 g, 9.26 mmol) was dissolved in dry DMF (10 mL) and tributylamine (Aldrich, 2 mL). The solution was evaporated in vacuo at 40° C. to an oil. The residue was dissolved in dry DMF (Aldrich, 8 mL) to form a solution. Carbonyldilmidazole (Aldrich, 1.65 g, 10.18 mmol) was added to this solution. The reaction was heated at 50° C. for one hour. Uridine 5′-triphosphate (Yamasa, 5.60 g, 10.18 mmol) prepared as the anhydrous tributylammonium salt in DMF (5 mL) and tributylamine (2 mL), as described in Example 3 below, was added to the reaction solution. The mixture was allowed to stir at 50° C. for three days when the solution was evaporated in vacuo to an oil, redissolved in water (5 mL) and purified by column (300×50 mm) chromatography (Sephadex DEAE-A25, 40-120μ, Aldrich, pre-swollen in 1.0 M NaHCO3 and washed with 2 column volumes of deionized H2O (H2O→0.03 M NH4HCO3 gradient). The pure fractions were concentrated in vacuo at 35° C., and H2O added and reevaporated 5 times to obtain diuridine tetraphosphate tetraammonium salt as a white solid (2.37 g, 30% yield): 92.11% pure by HPLC with the same retention time as the standard. In addition, the tetraammonium salt was analyzed by FABMS to give a mass of [C18H25N4O23P4 (M−H+)−: calculated 788.9860] 788.9857, confirming a parent formula of C18H26N4O23P4 for the free acid].
后处理
- customThe solution was evaporated in vacuo at 40° C. to an oil
- dissolutionThe residue was dissolved in dry DMF (Aldrich, 8 mL)
- customto form a solution
- additionCarbonyldilmidazole (Aldrich, 1.65 g, 10.18 mmol) was added to this solution
- additionwas added to the reaction solution
- customwas evaporated in vacuo to an oil
- dissolutionredissolved in water (5 mL)
- custompurified by column (300×50 mm) chromatography (Sephadex DEAE-A25, 40-120μ, Aldrich
- washpre-swollen in 1.0 M NaHCO3 and washed with 2 column volumes of deionized H2O (H2O→0.03 M NH4HCO3 gradient)
- concentrationThe pure fractions were concentrated in vacuo at 35° C.
- additionH2O added
- customreevaporated 5 times
来源与证据
- ORD记录
- ord-189bb935407a498e9d666b45cdf15497
- 来源数据集
- uspto-grants-2001_11
- 专利号
- US06319908B1
关联笔记
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