1-(β-D-xylofuranosyl)-thymine | 52486-19-8

• 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: 1-(β-D-xylofuranosyl)-thymine
• 英文别名: 1-beta-D-xylofuranosylthymine；1-[(2R,3R,4R,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-5-methylpyrimidine-2,4-dione
• CAS: 52486-19-8
• 化学式: C₁₀H₁₄N₂O₆
• 分子量: 258.231
• InChiKey: DWRXFEITVBNRMK-JVZYCSMKSA-N

物化性质

• 熔点：
  156-157.5 °C(Solv: ethanol (64-17-5))
• 密度：
  1.576±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -1.6
• 重原子数：
  18
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.6
• 拓扑面积：
  119
• 氢给体数：
  4
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  1-(β-D-xylofuranosyl)-thymine 在 镍 吡啶 、 碳酸二苯酯 、 氢气 、 吡啶溴化氢盐 、 碳酸氢钠 作用下， 以 甲醇 、 N,N-二甲基甲酰胺 为溶剂， 140.0~150.0 ℃ 、310.27 kPa 条件下， 反应 7.0h， 生成 beta-胸苷
  参考文献：
  名称：

  Discovery of a novel route to β-thymidine: a precursor for anti-AIDS compounds

  摘要：

  介绍了一种从 D-木糖合成 δ-胸苷的新方法。

  DOI：

  10.1039/c39940001255
• 作为产物：
  描述：

  1,2:3,5-双-O-异亚丙基-alpha-D-呋喃木糖 在 吡啶 、 盐酸 、 硫酸 、 sodium methylate 、 乙酸酐 、 四氯化锡 、 溶剂黄146 作用下， 反应 11.0h， 生成 1-(β-D-xylofuranosyl)-thymine
  参考文献：
  名称：

  Discovery of a novel route to β-thymidine: a precursor for anti-AIDS compounds

  摘要：

  介绍了一种从 D-木糖合成 δ-胸苷的新方法。

  DOI：

  10.1039/c39940001255

文献信息

• Synthesis of beta-L-2'-deoxy nucleosides
  申请人：Storer Richard

  公开号：US20050059632A1

  公开（公告）日：2005-03-17

  An improved process for the preparation of 2′-modified nucleosides and 2′-deoxy-nucleosides, such as, β-L-2′-deoxy-thymidine (LdT), is provided. In particular, the improved process is directed to the synthesis of a 2′-deoxynucleoside that may utilize different starting materials but that proceeds via a chloro-sugar intermediate or via a 2,2′-anhydro-1-furanosyl-nucleobase intermediate. Where an 2,2′-anhydro- 1 -furanosyl base intermediate is utilized, a reducing agent, such as Red-Al, and a sequestering agent, such as 15-crown-5 ether, that cause an intramolecular displacement reaction and formation of the desired nucleoside product in good yields are employed. An alternative process of the present invention utilizes a 2,2′-anhydro-1-furanosyl base intermediate without a sequestering agent to afford 2′-deoxynucleosides in good yields. The compounds made according to the present invention may be used as intermediates in the preparation of other nucleoside analogues, or may be used directly as antiviral and/or antineoplastic agents.

  提供了一种改进的2'-改性核苷和2'-脱氧核苷的制备工艺，例如，β-L-2'-脱氧胸苷（LdT）。特别是，改进的工艺针对的是2'-脱氧核苷的合成，该合成可能使用不同的起始材料，但都通过氯糖中间体或通过2,2'-脱水-1-呋喃糖核苷中间体进行。当使用2,2'-脱水-1-呋喃糖碱基中间体时，会采用还原剂（如Red-Al）和隔离剂（如15-冠-5醚），它们能引起分子内位移反应，并形成所需核苷产品的高收率。本发明的一种替代工艺使用2,2'-脱水-1-呋喃糖碱基中间体而不使用隔离剂，也能以高收率获得2'-脱氧核苷。根据本发明制成的化合物可以作为制备其他核苷类似物的中间体，或者可以直接用作抗病毒和/或抗肿瘤剂。
• A new protecting group ‘3′,5′-O-sulfinyl’ for xylo-nucleosides. A simple and efficient synthesis of 3′-amino-3′-deoxyadenosine (a puromycin intermediate), 2,2′-anhydro-pyrimidine nucleosides and 2′,3′-anhydro-adenosine
  作者：Ken-ichi Takatsuki、Makoto Yamamoto、Sumito Ohgushi、Shigeo Kohmoto、Keiki Kishikawa、Haruhiro Yamashita

  DOI：10.1016/j.tetlet.2003.10.092

  日期：2004.1

  We developed a new protecting group, the cyclic sulfite for the protection of the 3′,5′-dihydroxy group of nucleosides. Seven cyclic sulfites, 4a–c, 5a–b, and 6a–b were prepared in high yields from the corresponding xylo-uridines 1 and 2, and xylo-adenosines 3 with thionyl chloride, respectively. Synthesis of the puromycin intermediate 8 was carried out by deprotection of the sulfite moiety through

  我们开发了一种新的保护基团，为保护3的循环亚'，5 '核苷的二羟基组。分别由相应的木尿苷1和2以及木苷腺苷3和亚硫酰氯分别高产率地制备了七个环状亚硫酸盐4a – c，5a – b和6a – b。嘌呤霉素中间体的合成8是由亚硫酸盐部分的脱保护通过2的分子内环化进行' -α -氨基甲酸酯7。
• A simple and efficient synthesis of puromycin, 2,2′-anhydro-pyrimidine nucleosides, cytidines and 2′,3′-anhydroadenosine from 3′,5′-<i>O</i>-sulfinyl<i>Xylo</i>-nucleosides
  作者：Ken-ichi Takatsuki、Sumito Ohgushi、Shigeo Kohmoto、Keiki Kishikawa、Makoto Yamamoto

  DOI：10.1080/15257770600725929

  日期：2006.8

  antibiotics, puromycin and 3 ′-amino-3 ′-deoxy-N 6,N 6-dimethyladenosine 11 was achieved by utilizing the cyclic sulfite 6a of the xylo-3 ′,5 ′-dihydroxy group as a new protective group. The key synthetic step is the deprotection of the sulfite moiety through the intramolecular cyclization of 2-α-carbamate 7. In a similar manner, 2,2 ′-anhydro-pyrimidine nucleosides 15, ribo-cytidines 17 and 2 ′,3 ′-anhydroadenosine

  利用xylo-3′，5′-二羟基的环状亚硫酸盐6a作为新的保护基，合成了嘌呤霉素和3′-氨基-3′-脱氧-N 6，N 6-二甲基腺苷11。关键的合成步骤是通过2-α-氨基甲酸酯7的分子内环化作用对亚硫酸盐部分进行脱保护。类似地，2,2'-脱水嘧啶核苷15，核糖胞苷17和2'，3'-分别由相应的亚硫酸盐4、5和6b高产率地制备了脱水腺苷14。
• Modified nucleosides for the treatment of viral infections and abnormal cellular proliferation
  申请人：——

  公开号：US20030087873A1

  公开（公告）日：2003-05-08

  The disclosed invention is a composition for and a method of treating a Flaviviridae (including BVDV and HCV), Orthomyxoviridae (including Influenza A and B) or Paramyxoviridae (including RSV) infection, or conditions related to abnormal cellular proliferation, in a host, including animals, and especially humans, using a nucleoside of general formula (I)-(XXIII) or its pharmaceutically acceptable salt or prodrug. This invention also provides an effective process to quantify the viral load, and in particular BVDV, HCV or West Nile Virus load, in a host, using real-time polymerase chain reaction (“RT-PCR”). Additionally, the invention discloses probe molecules that can fluoresce proportionally to the amount of virus present in a sample.

  该公开的发明涉及一种用于治疗Flaviviridae（包括BVDV和HCV）、Orthomyxoviridae（包括甲型和乙型流感）或Paramyxoviridae（包括RSV）感染或与异常细胞增殖有关的病况的组合物和方法，适用于宿主，包括动物，尤其是人类，使用通用式（I）-（XXIII）的核苷或其药学上可接受的盐或前药。该发明还提供了一种有效的过程，用于量化病毒载量，特别是BVDV、HCV或西尼罗河病毒载量，使用实时聚合酶链反应（RT-PCR）。此外，该发明揭示了可以与样本中存在的病毒数量成比例发光的探针分子。
• Systematic synthesis and biological evaluation of .alpha.- and .beta.-D-xylofuranosyl nucleosides of the five naturally occurring bases in nucleic acids and related analogs
  作者：Gilles Gosselin、Marie Christine Bergogne、Jean De Rudder、Erik De Clercq、Jean Louis Imbach

  DOI：10.1021/jm00152a007

  日期：1986.2

  anomers were obtained by a multistep synthesis with use of 2-amino- or 2-mercapto-alpha-D-xylofuran[1',2':4,5]-2-oxazoline as starting material. The xylofuranosyl nucleosides were tested for their activity against a variety of RNA and DNA viruses and for inhibition of cell growth and macromolecule synthesis. Three compounds, 9-(beta-D-xylofuranosyl)adenine, 9-(beta-D-xylofuranosyl)guanine, and 1-(

  天然存在的核苷的α-和β-D-木呋喃糖基类似物，以及其他D-木呋喃糖基衍生物，已成为其生物学（即抗病毒抗代谢和抑制细胞生长）特性的系统合成和研究对象。通过将嘌呤和嘧啶糖苷配基与过酰化的1-O-乙酰基-α-D-木呋喃糖基糖基化，然后除去保护基团来制备β端基异构体。通过使用2-氨基或2-巯基-α-D-木呋喃[1'，2'：4,5] -2-恶唑啉为起始原料的多步合成法获得α-端基异构体。测试了木呋喃糖基核苷对多种RNA和DNA病毒的活性以及对细胞生长和大分子合成的抑制作用。9-（β-D-木呋喃糖基）腺嘌呤三种化合物