4-chloro-5-iodo-2-(pivaloylamino)-7-[(2,3,5-tri-O-benzoyl)-β-D-ribofuranosyl]-7H-pyrrolo[2,3-d]pyrimidine | 873792-67-7

• 分子结构分类: 有机化合物 - 核苷、核苷酸和类似物 - 吡咯并嘧啶核苷和核苷酸
• 英文名称: 4-chloro-5-iodo-2-(pivaloylamino)-7-[(2,3,5-tri-O-benzoyl)-β-D-ribofuranosyl]-7H-pyrrolo[2,3-d]pyrimidine
• 英文别名: [(2R,3R,4R,5R)-3,4-dibenzoyloxy-5-[4-chloro-2-(2,2-dimethylpropanoylamino)-5-iodopyrrolo[2,3-d]pyrimidin-7-yl]oxolan-2-yl]methyl benzoate
• CAS: 873792-67-7
• 化学式: C₃₇H₃₂ClIN₄O₈
• 分子量: 823.041
• InChiKey: GXULCSACUUGEPZ-QWOIFIOOSA-N

物化性质

• 密度：
  1.56±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  7.7
• 重原子数：
  51
• 可旋转键数：
  13
• 环数：
  6.0
• sp3杂化的碳原子比例：
  0.24
• 拓扑面积：
  148
• 氢给体数：
  1
• 氢受体数：
  10

反应信息

• 作为反应物：
  描述：

  4-chloro-5-iodo-2-(pivaloylamino)-7-[(2,3,5-tri-O-benzoyl)-β-D-ribofuranosyl]-7H-pyrrolo[2,3-d]pyrimidine 在 四(三苯基膦)钯 sodium hydroxide 、 copper(l) iodide 、 三乙胺 作用下， 以 1,4-二氧六环 、 甲醇 、 N,N-二甲基甲酰胺 为溶剂， 生成 2-amino-3,7-dihydro-5-propyn-1-yl-7-(β-D-ribofuranosyl)-4H-pyrrolo[2,3-d]pyrimidin-4-one
  参考文献：
  名称：

  7-Functionalized 7-Deazapurine Ribonucleosides Related to 2-Aminoadenosine, Guanosine, and Xanthosine:  Glycosylation of Pyrrolo[2,3-d]pyrimidines with 1-O-Acetyl-2,3,5-tri-O-benzoyl-d-ribofuranose

  摘要：

  The Silyl-Hilbert-Johnson reaction as well as the nucleobase-anion glycosylation of a series of 7-deazapurines has been investigated, and the 7-functionalized 7-deazapurine ribonucleosides were prepared. Glycosylation of the 7-halogenated 6-chloro-2-pivaloylamino-7-deazapurines 9b-d with 1-O-acetyl2,3,5-tri-O-benzOyl-D-ribofuranose (5) gave the beta-D-nucleosides 11b-d (73-75% yield), which were transformed to a number of novel 7-halogenated 7-deazapurine ribonucleosides (2b-d, 3b-d, and 4b-d) related to guanosine, 2-aminoadenosine, and xanthosine. 7-Alkynyl derivatives (2e-i, 3e-h, or 4g) have been prepared from the corresponding 7-iodonucleosides 2d, 3d, or 4d employing the palladium-catalyzed Sonogashira cross-coupling reaction. The 7-halogenated 2-amino-7-deazapurine ribonucleosides with a reactive 6-chloro substituent (18b-d) were synthesized in an alternative way using nucleobase-anion glycosylation performed on the 7-halogenated 2-arnino-6-chloro-7-deazapurines 13b-d with 5-0-[(1,1dimethylethyl)dimethylsilyl]-2,3-O-(1-methylethylidene)-alpha-D-ribofuranosyl chloride (17). Compounds 18b-d have been converted to the nucleosides 19b-d carrying reactive substituents in the pyrimidine moiety. Conformational analysis of selected nucleosides on the basis of proton coupling constants and using the program PSEUROT showed that these ribonucleosides exist in a preferred S conformation in solution.

  DOI：

  10.1021/jo0516640
• 作为产物：
  描述：

  N-(4-氯-5-碘-7H-吡咯[2,3-D]嘧啶-2-基)-2,2-二甲基丙酰胺 在 三氟甲磺酸三甲基硅酯 作用下， 以 乙腈 为溶剂， 反应 24.08h，