Methyl-3-deoxy-erythro-α-D-pentofuranosid | 42890-91-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 氧唑烯
• 英文名称: Methyl-3-deoxy-erythro-α-D-pentofuranosid
• 英文别名: (2S,3R,5S)-5-(hydroxymethyl)-2-methoxyoxolan-3-ol
• CAS: 42890-91-5
• 化学式: C₆H₁₂O₄
• 分子量: 148.159
• InChiKey: XFLOJOXQDZMCRP-JKUQZMGJSA-N

物化性质

• 沸点：
  294.5±40.0 °C(Predicted)
• 密度：
  1.24±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -1
• 重原子数：
  10
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  58.9
• 氢给体数：
  2
• 氢受体数：
  4

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。
• Synthesis of beta-L-2-Deoxy nucleosides
  申请人：Novartis AG

  公开号：EP2157095A2

  公开（公告）日：2010-02-24

  An improved process for the preparation of 2'-modified nucleosides and 2'-deoxynucleosides, 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.

  本发明提供了一种改进的方法，用于制备2'-修饰核苷和2'-去氧核苷，例如β-L-2'-去氧胸腺嘧啶（LdT）。特别是，改进的方法针对合成一种2'-去氧核苷，该方法可以利用不同的起始材料，但是通过氯代糖中间体或2,2'无水-1-呋喃基-核碱中间体进行。当使用2,2'-无水-1-呋喃基碱中间体时，采用还原剂（如Red-Al）和隔离剂（如15-冠-5醚），引起分子内位移反应并形成所需的核苷产物，产率良好。本发明的另一种替代方法利用无隔离剂的2,2'-无水-1-呋喃基碱中间体，以获得良好的2'-去氧核苷收率。根据本发明制备的化合物可以用作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。
• [EN] SYNTHESIS OF beta-L-2-DEOXY NUCLEOSIDES<br/>[FR] SYNTHESE DE NUCLEOSIDES 20050113See references of EP 1639121A4
  申请人：IDENIX CAYMAN LTD

  公开号：WO2005003374A2

  公开（公告）日：2005-01-13

  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.

  提供了一种改进的制备2'-修饰核苷和2'-脱氧核苷（例如β-L-2'-脱氧胸腺嘧啶（LdT））的方法。特别是，改进的方法是针对合成2'-脱氧核苷的，可以利用不同的起始材料，但是通过氯代糖中间体或2,2'-无水-1-呋喃核碱中间体进行。当使用2,2'-无水-1-呋喃基中间体时，采用还原剂（如Red-Al）和隔离剂（如15-冠-5醚）引起分子内置换反应并形成所需的核苷产物，产率较高。本发明的另一种替代方法利用2,2'-无水-1-呋喃基中间体而不使用隔离剂，可以获得产率较高的2'-脱氧核苷。根据本发明制备的化合物可以用作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。
• Polymeric Alpha-Hydroxy Aldehyde and Ketone Reagents and Conjugation Method
  申请人：Culbertson Sean M.

  公开号：US20110230618A1

  公开（公告）日：2011-09-22

  Provided herein are polymeric α-hydroxy aldehyde or α-hydroxy ketone reagents which can be conjugated to amine-containing compounds to form stable conjugates in a single-step reaction. In selected embodiments, the polymeric reagent itself incorporates an internal proton-abstracting (basic) functional group, to promote more efficient reaction. The substituent is appropriately situated, via a linker if necessary, to position the group for proton abstraction, preferably providing a 4- or 5-bond spacing between the abstracting atom and the hydrogen atom on the α-carbon. Also provided are methods of using the reagents and stable, solubilized conjugates of the reagents with biologically active compounds. In preferred embodiments, the polymeric component of the reagent or conjugate is a polyethylene glycol.

  本文提供了聚合物α-羟基醛或α-羟基酮试剂，可以与含胺化合物共轭，在单步反应中形成稳定的共轭物。在选定的实施例中，聚合物试剂本身包含内部质子抽取（碱性）功能基团，以促进更有效的反应。通过连接剂必要时适当地定位取代基，以定位功能基团进行质子抽取，最好在α-碳上的氢原子和抽取原子之间提供4或5键间隔。还提供使用试剂的方法以及与生物活性化合物稳定、可溶化的共轭物。在优选实施例中，试剂或共轭物的聚合物组分是聚乙二醇。
• POLYMERIC ALPHA-HYDROXY ALDEHYDE AND KETONE REAGENTS AND CONJUGATION METHOD
  申请人：NEKTAR THERAPEUTICS

  公开号：US20130280783A1

  公开（公告）日：2013-10-24

  Provided herein are polymeric α-hydroxy aldehyde or α-hydroxy ketone reagents which can be conjugated to amine-containing compounds to form stable conjugates in a single-step reaction. In selected embodiments, the polymeric reagent itself incorporates an internal proton-abstracting (basic) functional group, to promote more efficient reaction. The substituent is appropriately situated, via a linker if necessary, to position the group for proton abstraction, preferably providing a 4- or 5-bond spacing between the abstracting atom and the hydrogen atom on the α-carbon. Also provided are methods of using the reagents and stable, solubilized conjugates of the reagents with biologically active compounds. In preferred embodiments, the polymeric component of the reagent or conjugate is a polyethylene glycol.

  本文提供了聚合物α-羟基醛或α-羟基酮试剂，可以与含胺化合物结合，形成稳定的共轭物，在单步反应中完成。在选定的实施例中，聚合物试剂本身包含一个内部质子抽取（碱性）功能基团，以促进更有效的反应。适当的取代基通过连接基团等方式进行定位，以将基团定位于质子抽取位置，最好在α-碳上的氢原子和抽取原子之间提供4或5键间隔。还提供了使用这些试剂和与生物活性化合物稳定、可溶化的共轭物的方法。在首选实施例中，试剂或共轭物的聚合物部分是聚乙二醇。