(E)-5,5-diethoxypent-2-en-1-ol | 72380-59-7

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: (E)-5,5-diethoxypent-2-en-1-ol
• 英文别名: 5,5-diethoxy-pent-2t-en-1-ol
• CAS: 72380-59-7
• 化学式: C₉H₁₈O₃
• 分子量: 174.24
• InChiKey: BUMSNWIIFNJOHR-AATRIKPKSA-N

物化性质

• 沸点：
  86 °C(Press: 0.1 Torr)
• 密度：
  0.960±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.9
• 重原子数：
  12
• 可旋转键数：
  7
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.78
• 拓扑面积：
  38.7
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (E)-5,5-diethoxypent-2-en-1-ol 在 titanium(IV) isopropylate 、 叔丁基过氧化氢 、 D-(-)-酒石酸二乙酯 作用下， 生成 3,4-Anhydro-2-deoxy-D-threo-pentose diethyl acetal
  参考文献：
  名称：

  Asymmetric synthesis of D- and L-2-deoxy-4-thioriboscs

  摘要：

  Both D- and L-enantiomers of 2-deoxy-4-thioribose derivatives 12 and 17 were prepared stereospecifically in 12 steps from 1,3-propanediol. The key intermediary 2,3-epoxy alcohols, 8 and 15 were obtained with high enantiomeric excess by the Sharpless asymmetric epoxidation using (+)-L-diethyl tartrate and (-)-D-diethyl tartrate.

  DOI：

  10.1016/s0957-4166(00)80489-9
• 作为产物：
  描述：

  3,3-diethoxypropanal 在 sodium hydride 、 二异丁基氢化铝 作用下， 以 正己烷 、 二氯甲烷 为溶剂， 反应 0.67h， 生成 (E)-5,5-diethoxypent-2-en-1-ol
  参考文献：
  名称：

  Asymmetric synthesis of D- and L-2-deoxy-4-thioriboscs

  摘要：

  Both D- and L-enantiomers of 2-deoxy-4-thioribose derivatives 12 and 17 were prepared stereospecifically in 12 steps from 1,3-propanediol. The key intermediary 2,3-epoxy alcohols, 8 and 15 were obtained with high enantiomeric excess by the Sharpless asymmetric epoxidation using (+)-L-diethyl tartrate and (-)-D-diethyl tartrate.

  DOI：

  10.1016/s0957-4166(00)80489-9

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。
• The development of β-selective glycosylation reactions with benzyl substituted 2-deoxy-1,4-dithio-D-<i>erythro</i>-pentofuranosides: enabling practical multi-gram syntheses of 4'-Thio-2'-deoxycytidine (T-dCyd) and 5-aza-4’-thio-2’-deoxycytidine (aza-T-dCyd) to support clinical development
  作者：Donn G. Wishka、Omar D. Lopez、Vladimir F. Rudchenko、Guangfei Huang、Robert Bahde、Vineet Kumar、Sergiy M. Denysenko、Lianhao Zhang、Mianji Zhang、Beverly A. Teicher、Joel Morris

  DOI：10.1080/15257770.2020.1832694

  日期：2021.1.2

  perform direct β-selective glycosylation reactions with 2-deoxy-1,4-dithio-D-erythro-pentofuranosides has long been a significant stumbling block for the multi-gram synthesis of 4’-thio-2’-deoxy nucleosides. In addition, previously reported methods for the preparation of appropriately substituted 2-deoxy-1,4-dithio-D-erythro-pentofuranosides have proven problematic for large scale synthesis. To address

  摘要 长期以来，缺乏与 2-deoxy-1,4-dithio-D-erythro-pentofuranosides 进行直接 β-选择性糖基化反应的有效方法一直是多克合成 4'-thio-2 的重要障碍。 '-脱氧核苷。此外，先前报道的制备适当取代的 2-deoxy-1,4-dithio-D-erythro-pentofuranosides 的方法已证明对大规模合成存在问题。为了解决这些问题，我们在本文中描述了对先前报道的方法的修改和优化，以方便地大规模合成苄基取代的 2-脱氧-1,4-二硫代-D-赤型-戊呋喃糖苷。此外，我们描述了苄基取代的 2-deoxy-1 的 β-选择性糖基化反应的反应条件的发展，4-dithio-D-erythro-pentofuranosides 与 N4-benzoylcytosine 和 5-aza-cytosine，使临床候选物 4'-thio-2'-deoxycytidine
• Stereocontrolled preparation of cyclic xanthate; a novel synthetic route to 4-thiofuranose and 4′-thionucleoside
  作者：Jun'ichi Uenishi、Mitsuhiro Motoyama、Yoshitaka Nishiyama、Shoji Wakabayashi

  DOI：10.1039/c39910001421

  日期：——

  Optically active cyclic xanthate was prepared by the reaction of an epoxy alcohol with NaH and CS2, and was found to be a useful intermediate for synthesis of 4-thio-2-deoxyribose and 4′-thio-2′-deoxyribonucleoside.

  通过环氧醇与 NaH 和 CS2 的反应制备了具有光学活性的环黄原酸盐，并发现它是合成 4-硫代-2-脱氧核糖和 4â²-硫代-2â²-脱氧核苷的有用中间体。
• Stereoselective Access to the Core Structure of Macroline-Type Indole Alkaloids: Total Synthesis of Macroline and Alstomicine
  作者：Vilas D. Kadam、Sridhara Shanmukha Rao B.、S. K. Mahesh、Mithun Chakraborty、S. Phani Babu Vemulapalli、Satya Narayana Dayaka、Gangarajula Sudhakar

  DOI：10.1021/acs.orglett.8b01921

  日期：2018.8.17

  Rapid synthesis of the pentacyclic core structure of macroline-type indole alkaloids, and its application in the total synthesis of macroline and alstomicine is described. The core structure was accomplished in a highly stereocontrolled manner via two key steps, Ireland–Claisen rearrangement and Pictet–Spengler cyclization, commencing from a readily available starting material l-tryptophan, which obviated

  描述了大环型吲哚生物碱的五环核结构的快速合成及其在大环线和阿司他汀的全合成中的应用。核心结构是通过两个关键步骤以高度立体控制的方式完成的：爱尔兰-克莱森重排和Pictet-Spengler环化，这是从容易获得的起始原料l-色氨酸开始的，从而消除了特定手性来源作为外部催化剂的需要，试剂或内部辅助剂。
• Stereoselective synthesis and process for the manufacturing of 2′-deoxynucleosides
  申请人：The USA, as represented by the Secretary, Department of Health and Human Services

  公开号：US11365211B2

  公开（公告）日：2022-06-21

  Methods for stereoselective synthesis and manufacturing of 2′-deoxynucleosides, such as 2′-ribonucleosides, are disclosed. In some embodiments, the 2′-deoxynucleoside is a β-anomer of a 2′-deoxynucleoside having a 3′ α hydroxyl, 4′ β hydroxymethyl configuration. Nonlimiting examples of compounds prepared by the disclosed methods include 4′-thio-2′-deoxycytidine (T-dCyd) and 5-aza-4′-thio-2′-deoxycytidine (5-aza-T-dCyd; aza-T-dCyd; aza-T-dC).

  本发明公开了立体选择性合成和制造 2′-脱氧核苷（如 2′-核糖核苷）的方法。在某些实施方案中，2′-脱氧核苷是具有 3′ α羟基、4′ β羟甲基构型的 2′-脱氧核苷的 β-异构体。用所公开的方法制备的化合物的非限制性实例包括 4′-硫代-2′-脱氧胞苷（T-dCyd）和 5-氮杂-4′-硫代-2′-脱氧胞苷（5-氮杂-T-dCyd；氮杂-T-dCyd；氮杂-T-dC）。