3'-β-carbamoylmethyluridine

• 分子结构分类: 有机化合物 - 核苷、核苷酸和类似物 - 嘧啶核苷
• 英文名称: 3'-β-carbamoylmethyluridine
• 英文别名: 2-[(2R,3S,4R,5R)-5-(2,4-dioxopyrimidin-1-yl)-3,4-dihydroxy-2-(hydroxymethyl)oxolan-3-yl]acetamide
• 化学式: C₁₁H₁₅N₃O₇
• 分子量: 301.256
• InChiKey: HTNYYGFFXQBWTH-YVLQXNEASA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -3.6
• 重原子数：
  21
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.55
• 拓扑面积：
  162
• 氢给体数：
  5
• 氢受体数：
  7

反应信息

• 作为产物：
  描述：

  尿嘧啶核苷 在 palladium dihydroxide 吡啶 、 2,6-二甲基吡啶 、 chromium(VI) oxide 、 氟化铵 、 molecular sieve 、 samarium diiodide 、 氨 、 氢气 、 乙酸酐 、 silver nitrate 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 、 三氟乙酸 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 31.0h， 生成 3'-β-carbamoylmethyluridine
  参考文献：
  名称：

  Nucleosides and Nucleotides. 163. Synthesis of 3‘-β-Branched Uridine Derivatives via Intramolecular Reformatsky-Type Reaction Promoted by Samarium Diiodide¹

  摘要：

  A novel efficient method for the synthesis of 3'-beta-branched uridines starting from uridine was developed, in which a SmI2-promoted intramolecular Reformatsky-type reaction was effectively used. 5'-O-(Bromoacetyl)-3'-ketouridine derivatives 12, 26, and 27 were synthesized from uridine and were subjected to an intramolecular Reformatsky-type reaction. When 12, 26, and 27 were treated with 2.0 equiv of SmI2 in THF at -78 degrees C, intramolecular carbon-carbon bond formation at the 3'-beta-position proceeded smoothly to give the corresponding 3',5'-lactones 14, 28, and 29 in high yields, respectively. Treatment of 28 with NH3/MeOH gave the 3'-beta-branched uridine derivative 32 quantitatively, which was then deprotected to give 3'-C-(carbamoylmethyl)uridine (33).

  DOI：

  10.1021/jo961665f

文献信息

• Synthesis of 3′-β-carbamoylmethylcytidine (CAMC) and its derivatives as potential antitumor agents
  作者：Satoshi Ichikawa、Noriaki Minakawa、Satoshi Shuto、Motohiro Tanaka、Takuma Sasaki、Akira Matsuda

  DOI：10.1039/b517602f

  日期：——

  3′-β-Carbamoylmethylcytidine (CAMC) and its derivatives were synthesized using an intramolecular Reformatsky-type reaction promoted by SmI2 as the key step. In vitro tumor cell growth inhibitory activity was evaluated and CAMC was found to exhibit potent cytotoxicity against various human tumor cell lines. From a structure–activity relationship study it was postulated that the cytotoxic mechanism of action of CAMC did not require phosphorylation at the 5′-hydroxyl group. This study provides a novel strategy for the development of a new type of antitumor nucleoside.

  以 SmI2 促进的分子内 Reformatsky 型反应为关键步骤，合成了 3â²-β-Carbamoylmethylcytidine (CAMC) 及其衍生物。对体外肿瘤细胞生长抑制活性进行了评估，发现 CAMC 对多种人类肿瘤细胞株具有很强的细胞毒性。根据结构与活性关系研究推测，CAMC 的细胞毒性作用机制不需要 5²-羟基上的磷酸化。这项研究为开发新型抗肿瘤核苷提供了一种新策略。