(2E,4E)-ethyl 7-benzyloxy-4-methylhepta-2,4-dienoate | 869898-80-6

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: (2E,4E)-ethyl 7-benzyloxy-4-methylhepta-2,4-dienoate
• 英文别名: ethyl (2E,4E)-4-methyl-7-phenylmethoxyhepta-2,4-dienoate
• CAS: 869898-80-6
• 化学式: C₁₇H₂₂O₃
• 分子量: 274.36
• InChiKey: SJXMMWQKAAOWDB-MCQLXRESSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.8
• 重原子数：
  20
• 可旋转键数：
  9
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.35
• 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：

  (2E,4E)-ethyl 7-benzyloxy-4-methylhepta-2,4-dienoate 在 tris(dibenzylideneacetone)dipalladium(0) chloroform complex 、 甲基磺酰胺 、 potassium carbonate 吡啶 、 四氧化锇 、 甲酸 、 氢化奎尼定 1,4-(2,3-二氮杂萘)二醚 、 三乙胺 、 三苯基膦 、 potassium hexacyanoferrate(III) 作用下， 以 四氢呋喃 、 二氯甲烷 、 水 、 叔丁醇 为溶剂， 反应 2.66h， 生成 (4S,5S,E)-ethyl 7-(benzyloxy)-5-hydroxy-4-methylhept-2-enoate
  参考文献：
  名称：

  De Novo Synthesis of 2-Substituted syn-1,3-Diols via an Iterative Asymmetric Hydration Strategy

  摘要：

  The enantioselective syntheses of several protected 4-substituted syn-3,5-dihydroxy carboxylic esters have been achieved from the corresponding achiral (E,E)- or (E,Z)-1,3-dienoates. The route relies upon an enantio- and regioselective Sharpless dihydroxylation and a palladium-catalyzed reduction to form gamma-substituted delta-hydroxy-1-enoates. The resulting delta-hydroxy-1-enoates are subsequently converted into benzylidene-protected 4-substituted syn-3,5-dihydroxy carboxylic esters in one step. The benzylidene-protected 3,5-dihydroxy carboxylic esters are produced in good overall yields (20-54%) and high enantiomeric excess (73- 97% ee).

  DOI：

  10.1021/jo061200h
• 作为产物：
  描述：

  (E)-2-methyl-5-phenylmethoxypent-2-enal 、 乙氧甲酰基亚甲基三苯基膦 以 二氯甲烷 为溶剂， 以69%的产率得到(2E,4E)-ethyl 7-benzyloxy-4-methylhepta-2,4-dienoate
  参考文献：
  名称：

  De Novo Synthesis of 2-Substituted syn-1,3-Diols via an Iterative Asymmetric Hydration Strategy

  摘要：

  The enantioselective syntheses of several protected 4-substituted syn-3,5-dihydroxy carboxylic esters have been achieved from the corresponding achiral (E,E)- or (E,Z)-1,3-dienoates. The route relies upon an enantio- and regioselective Sharpless dihydroxylation and a palladium-catalyzed reduction to form gamma-substituted delta-hydroxy-1-enoates. The resulting delta-hydroxy-1-enoates are subsequently converted into benzylidene-protected 4-substituted syn-3,5-dihydroxy carboxylic esters in one step. The benzylidene-protected 3,5-dihydroxy carboxylic esters are produced in good overall yields (20-54%) and high enantiomeric excess (73- 97% ee).

  DOI：

  10.1021/jo061200h

文献信息

• Constrained himbacine analogs as thrombin receptor antagonists
  申请人：Chelliah V. Mariappan

  公开号：US20050267155A1

  公开（公告）日：2005-12-01

  A compound represented by the structural formula and pharmaceutically acceptable salts and solvents thereof is disclosed, wherein: the single-dashed line between the ring carbons to which R 10 and R 34 are attached represents either a single bond or a double bond; the double-dashed line between X and the carbon to which Y is attached represents either a single bond or an absent bond; X is —O— or —NR 6 — when the double-dashed line represents a single bond; X is H, —OH or —NHR 20 when the double-dashed line represents an absent bond; and other parameters are as defined herein. Also disclosed are pharmaceutical compositions and combinations containing said compounds and their uses as thrombin receptor antagonists and binders to cannabinoid receptors.

  揭示了一种由结构式表示的化合物及其在药学上可接受的盐和溶剂，其中：连接R10和R34附着的环碳之间的单虚线代表单键或双键；连接X和附着Y的碳之间的双虚线代表单键或缺失键；当双虚线代表单键时，X为—O—或—NR6—；当双虚线代表缺失键时，X为H、—OH或—NHR20；其他参数如本文所定义。还揭示了含有该化合物的药物组合物和药物组合物，以及它们作为凝血酶受体拮抗剂和大麻素受体结合物的用途。
• De Novo Synthesis of 2-Substituted <i>syn</i>-1,3-Diols via an Iterative Asymmetric Hydration Strategy
  作者：Md. Moinuddin Ahmed、Matthew S. Mortensen、George A. O'Doherty

  DOI：10.1021/jo061200h

  日期：2006.9.1

  The enantioselective syntheses of several protected 4-substituted syn-3,5-dihydroxy carboxylic esters have been achieved from the corresponding achiral (E,E)- or (E,Z)-1,3-dienoates. The route relies upon an enantio- and regioselective Sharpless dihydroxylation and a palladium-catalyzed reduction to form gamma-substituted delta-hydroxy-1-enoates. The resulting delta-hydroxy-1-enoates are subsequently converted into benzylidene-protected 4-substituted syn-3,5-dihydroxy carboxylic esters in one step. The benzylidene-protected 3,5-dihydroxy carboxylic esters are produced in good overall yields (20-54%) and high enantiomeric excess (73- 97% ee).