5987-73-5

基本信息
2',3',5'-Tri-O-acetyl-6-chloronebularine
2,3,5-TRI-O-ACETYL-6-CHLOROPURINE-9-?-D-RIBOFURANOSIDE
6-Chloro-9-(2,3,5-tri-O-acetyl-β-D- ribofuranosyl)purine
9-(2',3',5'-Tri-O-acetyl-b-D-ribofuranosyl)-6-chloropurine
6-Chloro-9-β-D-ribofuranosyl-9H-purine 2',3',5'-Triacetate
6-Chloro-9-(2',3',5'-tri-O-acetyl-β-D-ribofuranosyl)purine
6-Chloro-9-(2,3,5-tri-O-acetyl-beta-D-ribofuranosyl)purine
9-(2',3',5'-Tri-O-acetyl-beta-D-ribofuranosyl)-6-chloropurine
6-Chloro-9-(2',3',5'-tri-O-acetyl-beta-D-ribofuranosyl)purine
物理化学性质
制备方法

3181-38-2

5987-73-5
一般步骤:将(2R,3R,4R,5R)-2-(乙酰氧基甲基)-5-(6-氧代-1H-嘌呤-9(6H)-基)四氢呋喃-3,4-二基二乙酸酯(5.00 g,12.68 mmol,1.00当量)、苄基三乙基氯化铵(5.77 g,25.36 mmol,2.00当量)和N,N-二甲基苯胺(1.8 mL,13.94 mmol,1.10当量)溶解于50 mL无水乙腈中。将反应混合物置于预热的油浴(70°C)中,缓慢滴加三氯氧磷(5.9 mL,63.40 mmol,5.00当量),并在相同温度下搅拌2小时。反应完成后,在减压(高真空,70°C)条件下除去溶剂和剩余的三氯氧磷。将残余物倒入氯仿/冰混合物中,搅拌20分钟。分离有机相,水相用氯仿萃取3次。合并有机相,用5%碳酸氢钠溶液洗涤直至水层呈弱碱性。随后,分离有机相,用无水硫酸镁干燥,减压浓缩除去溶剂。通过硅胶柱色谱(洗脱剂:乙酸乙酯)纯化,得到目标产物(2R,3R,4R,5R)-2-(乙酰氧基甲基)-5-(6-氯-9H-嘌呤-9-基)四氢呋喃-3,4-二乙酸二酯(化合物17),为黄色油状物(5.23 g,定量收率)。
参考文献:
[1] Beilstein Journal of Organic Chemistry, 2018, vol. 14, p. 1563 - 1569
[2] Russian Journal of Bioorganic Chemistry, 1999, vol. 25, # 9, p. 603 - 611
[3] Bioorganic and Medicinal Chemistry Letters, 2009, vol. 19, # 23, p. 6736 - 6739
[4] Patent: WO2005/84653, 2005, A2. Location in patent: Page/Page column 42
[5] British Journal of Pharmacology, 2017, vol. 174, # 14, p. 2287 - 2301