9-β-D-arabinofuranosyl-6-methylpurine | 145047-44-5

• 分子结构分类: 有机化合物 - 核苷、核苷酸和类似物 - 嘌呤核苷
• 英文名称: 9-β-D-arabinofuranosyl-6-methylpurine
• 英文别名: 6-methyl-9-(β-D-arabinofuranosyl)purine；(2R,3S,4S,5R)-2-(hydroxymethyl)-5-(6-methylpurin-9-yl)oxolane-3,4-diol
• CAS: 145047-44-5
• 化学式: C₁₁H₁₄N₄O₄
• 分子量: 266.257
• InChiKey: FIGBCBGMUIGJBD-GPUHXXMPSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.3
• 重原子数：
  19
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.55
• 拓扑面积：
  114
• 氢给体数：
  3
• 氢受体数：
  7

反应信息

• 作为产物：
  描述：

  阿糖腺苷 在 purine nucleoside 2’-deoxyribosyltransferase from Trypanosoma brucei 作用下， 以 aq. phosphate buffer 为溶剂， 反应 8.0h， 生成 9-β-D-arabinofuranosyl-6-methylpurine
  参考文献：
  名称：

  使用来自布鲁氏锥虫的高度通用的嘌呤核苷2'-脱氧核糖基转移酶酶促合成治疗性核苷

  摘要：

  与多步化学方法相比，使用酶来合成核苷类似物具有多个优势，包括化学，区域和立体选择性以及较温和的反应条件。本文报道了来自布鲁氏锥虫的嘌呤核苷2'-脱氧核糖基转移酶（PDT）的生产，表征和利用。Tb PDT是一种二聚体，不仅在很宽的温度范围（50–70°C），pH（4–7）和离子强度（0–500 mM NaCl）范围内都显示出出色的活性和稳定性，而且在高温下具有非凡的高稳定性碱性条件（pH 8-10）。bPDT被证明可以熟练地合成许多治疗性核苷，包括去羟肌苷，维达拉滨，克拉屈滨，氟达拉滨和奈拉拉滨。用Ala或Ser进行结构指导的Val11置换，导致变体的活性提高了2.8倍。Tb PDT也共价固定在戊二醛激活的磁性微球上。选择了M Tb PDT3作为最佳衍生物（4200 IU / g，活性回收率为22％），可以轻松地将其重新捕获和再循环用于> 25个反应，而活性损失可忽略不计。最后，男铽PDT3

  DOI：

  10.1002/cctc.201800775

文献信息

• Mutant purine nucleoside phosphorylase proteins and cellular delivery thereof
  申请人：Ealick E. Steven

  公开号：US20050214901A1

  公开（公告）日：2005-09-29

  A host cell stably transformed or transfected by a vector including a DNA sequence encoding for mutant purine nucleoside cleavage enzymes is provided. The transformed or transfected host cell can be used in combination with a purine substrate to treat tumour cells and/or virally infected cells. A nucleotide sequence encoding mutant E. coli derived purine nucleoside phosphorylase proteins which can be used in conjunction with an appropriate substrate to produce toxins which impair abnormal cell growth is also provided. A method is detailed for the delivery of toxin by generation withing target cells or by administration and delivery to the cells from without. Novel purine nucleosides are detailed that yield a cytotoxic purine upn enzymatic cleavage. A synthetic process for nucleosides is also detailed.

  提供了一种由载有突变嘌呤核苷酸裂解酶编码DNA序列的载体转化或转染的宿主细胞。该转化或转染的宿主细胞可与嘌呤底物结合，用于治疗肿瘤细胞和/或病毒感染的细胞。还提供了编码突变E. coli来源的嘌呤核苷酰化酶蛋白的核苷酸序列，可与适当的底物结合使用，产生有害细胞生长的毒素。详细介绍了一种通过靶细胞内生成或通过外部给药和传递给细胞的毒素递送方法。详细介绍了产生细胞毒性嘌呤核苷酶裂解产物的新型嘌呤核苷。还详细介绍了一种核苷的合成过程。
• Synthesis and evaluation of the substrate activity of C-6 substituted purine ribosides with E. coli purine nucleoside phosphorylase: Palladium mediated cross-coupling of organozinc halides with 6-chloropurine nucleosides
  作者：Abdalla E.A. Hassan、Reham A.I. Abou-Elkhair、James M. Riordan、Paula W. Allan、William B. Parker、Rashmi Khare、William R. Waud、John A. Montgomery、John A. Secrist

  DOI：10.1016/j.ejmech.2011.10.039

  日期：2012.1

  A series of C-6 alkyl, cycloalkyl, and aryl-9-(beta-D-ribofuranosyl)purines were synthesized and their substrate activities with Escherichia colt purine nucleoside phosphorylase (E. coli PNP) were evaluated. (Ph3P)(4)Pd-mediated cross-coupling reactions of 6-chloro-9-(2,3,5-tri-O-acetyl-beta-D-ribofuranosyl)-purine (6) with primary alkyl (Me, Et, n-Pr, n-Bu, isoBu) zinc halides followed by treatment with NH3/MeOH gave the corresponding 6-alkyl-9-(beta-D-ribofuranosyl)purine derivatives 7-11, respectively, in good yields. Reactions of 6 with cycloalkyl(propyl, butyl, pentyl)zinc halides and aryl (phenyl, 2-thienyl)zinc halides gave under similar conditions the corresponding 6-cyclopropyl, cyclobutyl, cyclopentyl, phenyl, and thienyl -9-(beta-D-ribofuranosyl)purine derivatives 12-16, respectively in high yields. E. colt PNP showed a high tolerance to the steric and hydrophobic environment at the 6-position of the synthesized purine ribonucleosides. Significant cytotoxic activity was observed for 8, 12, 15, and 16. Evaluation of 12 and 16 against human tumor xenografts in mice did not demonstrate any selective antitumor activity. In addition, 6-methyl-9-(beta-D-arabinofuranosyl)purine (18) was prepared and evaluated. (C) 2011 Elsevier Masson SAS. All rights reserved.
• PURINE NUCLEOSIDE PHOSPHORYLASE AS ENZYMATIC ACTIVATOR OF NUCLEOSIDE PRODRUGS
  申请人：The UAB Research Foundation

  公开号：EP2331115A2

  公开（公告）日：2011-06-15
• US7037718B2
  申请人：——

  公开号：US7037718B2

  公开（公告）日：2006-05-02
• US7488598B2
  申请人：——

  公开号：US7488598B2

  公开（公告）日：2009-02-10