2-pivaloylamino-4-chloro-5-bromo-N7-((2′,3′,5′-tri-O-benzoyl)-β-D-ribofuranosyl)-pyrrolo[2,3-d]pyrimidine | 873792-66-6

• 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: 2-pivaloylamino-4-chloro-5-bromo-N7-((2′,3′,5′-tri-O-benzoyl)-β-D-ribofuranosyl)-pyrrolo[2,3-d]pyrimidine
• 英文别名: 5-bromo-4-chloro-2-(pivaloylamino)-7-[(2,3,5-tri-O-benzoyl)-β-D-ribofuranosyl]-7H-pyrrolo[2,3-d]pyrimidine；[(2R,3R,4R,5R)-3,4-dibenzoyloxy-5-[5-bromo-4-chloro-2-(2,2-dimethylpropanoylamino)pyrrolo[2,3-d]pyrimidin-7-yl]oxolan-2-yl]methyl benzoate
• CAS: 873792-66-6
• 化学式: C₃₇H₃₂BrClN₄O₈
• 分子量: 776.04
• InChiKey: CSQWEJDINMRUHN-QWOIFIOOSA-N

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：

  2-pivaloylamino-4-chloro-5-bromo-N7-((2′,3′,5′-tri-O-benzoyl)-β-D-ribofuranosyl)-pyrrolo[2,3-d]pyrimidine 在 溶剂黄146 、 sodium nitrite 作用下， 以 甲醇 、 水 为溶剂， 生成 5-bromo-1,7-dihydro-4-methoxy-7-(β-D-ribofuranosyl)-2H-pyrrolo[2,3-d]pyrimidin-2-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-(5-溴-4-氯-7H-吡咯并[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， 生成 2-pivaloylamino-4-chloro-5-bromo-N7-((2′,3′,5′-tri-O-benzoyl)-β-D-ribofuranosyl)-pyrrolo[2,3-d]pyrimidine
  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

文献信息

• Glycosylation of Pyrrolo[2,3-<i>d</i>]pyrimidines with 1-<i>O</i>-Acetyl-2,3,5-tri-<i>O</i>-benzoyl-β-<scp>d</scp>-ribofuranose: Substituents and Protecting Groups Effecting the Synthesis of 7-Deazapurine Ribonucleosides
  作者：Sachin A. Ingale、Peter Leonard、Frank Seela

  DOI：10.1021/acs.joc.8b00343

  日期：2018.8.3

  synthesis of 7-deazaguanosine employing pivaloylated 2-amino-6-chloro-7-deazapurine gave 18% glycosylation yield. The less bulky isobutyryl or acetyl protected amino group directed the glycosylation toward the exocyclic amino substituent. 7-Halogenated intermediates were glycosylated followed by dehalogenation to overcome the low glycosylation yield in the synthesis of 7-deazaguanosine.

  非官能化的6-氯-7-脱氮嘌呤与市售的1 - O-乙酰基-2,3,5-三-O-苯甲酰基-β - d-呋喃呋喃糖（45％）进行糖基化，然后胺化和脱保护，仅得到两种形式的结核菌素脚步。应用类似的条件，采用吡咯烷基化的2-氨基-6-氯-7-脱氮嘌呤合成7-脱氮鸟嘌呤，可以得到18％的糖基化产率。较小体积的异丁酰基或乙酰基保护的氨基将糖基化指向环外氨基取代基。将7-卤代中间体糖基化，然后脱卤以克服7-脱氮鸟苷合成中低糖基化产率。
• C6–O-alkylated 7-deazainosine nucleoside analogues: Discovery of potent and selective anti-sleeping sickness agents
  作者：Fabian Hulpia、Jakob Bouton、Gustavo D. Campagnaro、Ibrahim A. Alfayez、Dorien Mabille、Louis Maes、Harry P. de Koning、Guy Caljon、Serge Van Calenbergh

  DOI：10.1016/j.ejmech.2019.112018

  日期：2020.2

  , is spread to new hosts by bites of infected tsetse flies. Currently approved therapies all have their specific drawbacks, prompting a search for novel therapeutic agents. T. brucei lacks the enzymes necessary to forge the purine ring from amino acid precursors, rendering them dependent on the uptake and interconversion of host purines. This dependency renders analogues of purines and corresponding

  非洲锥虫病是由原生动物Trypanosoma brucei spp。引起的一种致命的传染病，通过被感染的采采蝇的叮咬传播到新的寄主。目前批准的疗法都有其特定的缺点，促使人们寻找新的治疗剂。T. brucei缺乏从氨基酸前体形成嘌呤环所需的酶，使其依赖于宿主嘌呤的吸收和相互转化。这种依赖性使得嘌呤的类似物和相应的核苷成为潜在的抗-T的有趣来源。布鲁斯代理商。在这项研究中，我们合成和评估了一系列7-取代的7-脱氮芥子碱衍生物，发现6-O-烷基化的类似物特别具有极好的前景，其EC50值在纳摩尔级范围内。SAR对O-烷基链的研究表明，至少在线性烷基链系列中，随着烷基链长度的增加，抗锥虫活性以及细胞毒性也随之增加。然而，这可以通过引入末端分支点来减弱，从而产生高度有效和选择性的类似物36、37和38。无法鉴定出与转运蛋白介导的摄取相关的抗药性，这些类似物中的几种被指定用于进一步的体内跟踪研究。研究。
• An Efficient Synthesis Of 7-Functionalized 7-Deazapurine β-D- Or β-L-Ribonucleosides: Glycosylation Of Pyrrolo[2,3-D]Pyrimidines With 1-O-Acetyl-2,3,5-Tri-O-Benzoyl-D-Or L-Ribofuranose
  作者：Xiaohua Peng、Frank Seela

  DOI：10.1080/15257770701490332

  日期：2007.11.26

  The glycosylation reaction performed with 7-halogenated 7-deazapurines employing commercially available 1-O-acetyl-2,3,5-tri-O-benzoyl-D- or L-ribofuranoses is described.

  描述了使用可商购的1-O-乙酰基-2,3,5-三-O-苯甲酰基-D-或L-呋喃呋喃糖酶用7-卤代7-脱氮嘌呤进行的糖基化反应。