methyl (2R,3S)-(E)-3-(dimethyl(phenyl)silyl)-2-(trimethylsilyloxy)-hex-4-enoate

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: methyl (2R,3S)-(E)-3-(dimethyl(phenyl)silyl)-2-(trimethylsilyloxy)-hex-4-enoate
• 英文别名: methyl (2R,3S)-(E)-3-(dimethyl(phenyl)silyl)-2-(trimethylsiloxy)-hex-4-enoate；methyl-(2R,3S)-E-3-(dimethylphenylsilyl)-2-(trimethylsiloxy)-hex-4-enoate；methyl (E,2R,3S)-3-[dimethyl(phenyl)silyl]-2-trimethylsilyloxyhex-4-enoate
• 化学式: C₁₈H₃₀O₃Si₂
• 分子量: 350.605
• InChiKey: NMDHEWQWXSDZSL-MVIRQZGPSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.94
• 重原子数：
  23
• 可旋转键数：
  8
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  35.5
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  methyl (2R,3S)-(E)-3-(dimethyl(phenyl)silyl)-2-(trimethylsilyloxy)-hex-4-enoate 在 palladium on activated charcoal 三氟甲磺酸 、 氢气 作用下， 以 二氯甲烷 、 乙酸乙酯 为溶剂， 反应 44.0h， 生成 methyl (2S,5S,6S)-5-methyl-6-phenyl-tetrahydro-2H-pyran-2-carboxylate
  参考文献：
  名称：

  Mild Reductive Opening of Aryl Pyranosides Promoted by Scandium(III) Triflate

  摘要：

  DOI：

  10.1021/ja067234o

文献信息

• [4 + 2]-Annulations of Chiral Organosilanes:  Application to the Total Synthesis of Leucascandrolide A
  作者：Qibin Su、Les A. Dakin、James S. Panek

  DOI：10.1021/jo0610412

  日期：2007.1.1

  Complete details of an asymmetric synthesis of leucascandrolide A (1) are described. The synthesis highlights the use of two diastereoselective [4 + 2]-annulations for the assembly of the functionalized bispyranyl macrolide 3. An efficient assembly and union of the oxazole-containing side chain 4 with macrolide 3 was carried out using a Mitsunobu reaction. A convergent route to the oxazole side chain

  描述了leucascandrolide A（1）的不对称合成的完整细节。该合成突出显示了两个非对映选择性[4 + 2]环的功能化双吡喃基大环内酯3的组装。使用Mitsunobu反应进行了含恶唑侧链4与大环内酯3的有效组装和结合。利用2-三氟噻唑16和炔烃17之间的Sonogashira交叉偶联，开发了向恶唑侧链的收敛路线，从而可以安装C9'-C10'（Z）-烯烃。
• Enantioselective [4 + 2]-Annulation of Chiral Crotylsilanes:  Application to the Synthesis of a C1−C22 Fragment of Leucascandrolide A
  作者：Les A. Dakin、James S. Panek

  DOI：10.1021/ol035581m

  日期：2003.10.1

  [reaction: see text] The asymmetric synthesis of a C1-C22 fragment (2) of leucascandrolide A is described. Synthetic highlights include the construction of the C9-C22 pyran fragment using a formal [4 + 2]-annulation of a chiral organosilane. A diastereoselctive Mukaiyama aldol was used to introduce the C9 stereocenter and complete the assembly of the macrocycle's carbon skeleton.

  [反应：见正文]描述了白果内酯A的C1-C22片段（2）的不对称合成。合成亮点包括使用手性有机硅烷的正式[4 + 2]环构法构建C9-C22吡喃片段。使用非对映体的Mukaiyama aldol引入C9立体中心并完成大环碳骨架的组装。
• Synthesis of a 35-Member Stereoisomer Library of Bistramide A: Evaluation of Effects on actin State, Cell Cycle and Tumor Cell Growth
  作者：Iwona E. Wrona、Jason T. Lowe、Thomas J. Turbyville、Tanya R. Johnson、Julien Beignet、John A. Beutler、James S. Panek

  DOI：10.1021/jo802269q

  日期：2009.3.6

  Synthesis and preliminary biological evaluation of a 35-member library of bistramide A stereoisomers are reported. All eight stereoisomers of the C1−C13 tetrahydropyran fragment of the molecule were prepared utilizing crotylsilane reagents 9 and 10 in our [4+2]-annulation methodology. In addition, the four isomers of the C14−C18 γ-amino acid unit were accessed via a Lewis acid mediated crotylation

  报道了双酰胺 A 立体异构体的 35 成员文库的合成和初步生物学评估。在我们的 [4+2] 环化方法中，使用巴豆基硅烷试剂9和10制备了该分子的 C1-C13 四氢吡喃片段的所有八种立体异构体。此外，C14-C18 γ-氨基酸单元的四种异构体通过路易斯酸介导的巴豆化反应使用有机硅烷11的两种对映异构体获得. Bistramide A 的螺旋缩酮亚基在 C39 醇处进行了修饰，以提供立体化学多样化的另一个点。通过使用标准肽偶联方案将片段偶联以提供天然产物的 35 种立体异构体。筛选这些立体化学类似物对细胞肌动蛋白的影响和对癌细胞系（UO-31 肾和 SF-295 CNS）的细胞毒性。这些测定的结果鉴定了一种类似物1.21，其相对于天然产物 bistramide A 具有增强的效力。
• Synthesis of Reblastatin, Autolytimycin, and Non-Benzoquinone Analogues: Potent Inhibitors of Heat Shock Protein 90
  作者：Iwona E. Wrona、Alexander Gozman、Tony Taldone、Gabriela Chiosis、James S. Panek

  DOI：10.1021/jo1000109

  日期：2010.5.7

  A full account of an asymmetric synthesis of reblastatin (1) and the first total synthesis of autolytimycin (2) and related structural compounds is described. The syntheses expand the utility of a highly regio- and diastereoselective hydrometalation aldehyde addition sequence to assemble the fully functionalized ansa chain of the natural products. Also documented is an intramolecular copper-mediated amidation reaction to close the 19-membered macrolactams. The amidation reaction was also employed for the generation of structural derivatives (6-9) of phenolic ansamycins. Ansamycin natural products and selected structural analogues were evaluated in a competitive binding assay to breast cancer cell lysate and a cytotoxicity assay. Both reblastatin (1) and autolytimycin (2) were shown to bind the heat shock protein 90 with enhanced binding activity (similar to 25 nM) than 17-allylamino-17-demethoxygeldanamycin (17-AAG, 4), a geldanamycin (3) derivative currently under evaluation for treatment of cancer (similar to 100 nM).
• Total Synthesis of the Hsp90 Inhibitor Geldanamycin
  作者：Hua-Li Qin、James S. Panek

  DOI：10.1021/ol800749w

  日期：2008.6.1

  An enantioselective synthesis of the Hsp90 inhibitor geldanamycin was achieved in 20 linear steps and 2.0% overall yield from 2-methoxyhydroquinone. The synthesis is highlighted by a regio- and stereoselective hydroboration reaction; a Sc(OTf)(3)/Et(3)SiH-mediated pyran ring-opening reaction; an enantioselective crotylation to simultaneously install the C8-C9 (E)-trisubstituted olefin, the C10 and C11 stereocenters; a chelation-controlled asymmetric metallated acetylide addition; and an intramolecular copper(I)-mediated aryl amidation reaction to close the 19-membered macrolactam.