methyl 2-[(2R,5S,6S)-6-(2-hydroxybut-3-en-2-yl)-5-methyloxan-2-yl]acetate | 203315-89-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 氧烷类
• 英文名称: methyl 2-[(2R,5S,6S)-6-(2-hydroxybut-3-en-2-yl)-5-methyloxan-2-yl]acetate
• CAS: 203315-89-3
• 化学式: C₁₃H₂₂O₄
• 分子量: 242.315
• InChiKey: VDBTVZOOGJMUHW-OMLSGTGCSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.5
• 重原子数：
  17
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.77
• 拓扑面积：
  55.8
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  methyl 2-[(2R,5S,6S)-6-(2-hydroxybut-3-en-2-yl)-5-methyloxan-2-yl]acetate 在 三溴化磷 、 sodium hydride 作用下， 以 四氢呋喃 、 乙醚 、 mineral oil 为溶剂， 反应 5.5h， 生成
  参考文献：
  名称：

  A Total Synthesis of Herboxidiene Methyl Ester

  摘要：

  The total synthesis of the methyl ester, 35, of herboxidiene (1, a.k.a. GEX1A and TAN-1609), a polyketide displaying both herbicidal and anti-tumor activity, is described. The convergent reaction sequence involves, in its closing stages, the union of the phosphine oxide 3 with the aldehyde 21 to deliver, via a Horner-Wittig reaction with accompanying epimerization at C12, compound 33 that after deprotection affords an alcohol, 34, capable of participating in a regio- and diastereo-selective epoxidation reaction to give target 35. Phosphine oxide 3 was prepared via the intramolecular hetero-Michael addition of a secondary alcohol to a tethered and Z-configured acrylate while aldehyde 21 was generated, in the crucial step of the relevant reaction sequence, via an Ireland-Claisen rearrangement reaction.

  DOI：

  10.3987/com-12-12597
• 作为产物：
  描述：

  methyl [2R-(2α,5β,6α)]-6-acetyl-5-methyltetrahydro-2H-pyran-2-acetate 在 乙烯基溴化镁 作用下， 以 四氢呋喃 为溶剂， 反应 1.5h， 以60%的产率得到methyl 2-[(2R,5S,6S)-6-(2-hydroxybut-3-en-2-yl)-5-methyloxan-2-yl]acetate
  参考文献：
  名称：

  A Total Synthesis of Herboxidiene Methyl Ester

  摘要：

  The total synthesis of the methyl ester, 35, of herboxidiene (1, a.k.a. GEX1A and TAN-1609), a polyketide displaying both herbicidal and anti-tumor activity, is described. The convergent reaction sequence involves, in its closing stages, the union of the phosphine oxide 3 with the aldehyde 21 to deliver, via a Horner-Wittig reaction with accompanying epimerization at C12, compound 33 that after deprotection affords an alcohol, 34, capable of participating in a regio- and diastereo-selective epoxidation reaction to give target 35. Phosphine oxide 3 was prepared via the intramolecular hetero-Michael addition of a secondary alcohol to a tethered and Z-configured acrylate while aldehyde 21 was generated, in the crucial step of the relevant reaction sequence, via an Ireland-Claisen rearrangement reaction.

  DOI：

  10.3987/com-12-12597

文献信息

• Pre-mRNA Splicing-Modulatory Pharmacophores: The Total Synthesis of Herboxidiene, a Pladienolide–Herboxidiene Hybrid Analog and Related Derivatives
  作者：Chandraiah Lagisetti、Maria V. Yermolina、Lalit Kumar Sharma、Gustavo Palacios、Brett J. Prigaro、Thomas R. Webb

  DOI：10.1021/cb400695j

  日期：2014.3.21

  Herboxidiene is a natural product that has previously been shown to exhibit antitumor activity by targeting the spliceosome. This activity makes herboxidiene a valuable starting point for the development of anticancer drugs. Here, we report an improved enantioselective synthesis of herboxidiene and the first report of its biologically active totally synthetic analog: 6-norherboxidiene. The synthesis of the tetrahydropyran moiety utilizes the novel application of inverse electron-demand Diels-Alder chemistry and the Ferrier-type rearrangement as key steps. We report, for the first time, cytotoxicity IC(50)s for synthetic herboxidiene and analogs in human tumor cell lines. We have also demonstrated that synthetic herboxidiene and its analogs can potently modulate the alternate splicing of MDM-2 pre-mRNA.
• A Total Synthesis of Herboxidiene Methyl Ester
  作者：Martin G. Banwell、Rajaratnam Premraj、Malcolm D. McLeod、Gregory W. Simpson

  DOI：10.3987/com-12-12597

  日期：——

  The total synthesis of the methyl ester, 35, of herboxidiene (1, a.k.a. GEX1A and TAN-1609), a polyketide displaying both herbicidal and anti-tumor activity, is described. The convergent reaction sequence involves, in its closing stages, the union of the phosphine oxide 3 with the aldehyde 21 to deliver, via a Horner-Wittig reaction with accompanying epimerization at C12, compound 33 that after deprotection affords an alcohol, 34, capable of participating in a regio- and diastereo-selective epoxidation reaction to give target 35. Phosphine oxide 3 was prepared via the intramolecular hetero-Michael addition of a secondary alcohol to a tethered and Z-configured acrylate while aldehyde 21 was generated, in the crucial step of the relevant reaction sequence, via an Ireland-Claisen rearrangement reaction.