(1E,3S,5Z)-6-iodo-2-methyl-1-(2-methyl-1,3-thiazol-4-yl)-1,5-heptadien-3-yl acetate | 189453-18-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: (1E,3S,5Z)-6-iodo-2-methyl-1-(2-methyl-1,3-thiazol-4-yl)-1,5-heptadien-3-yl acetate
• 英文别名: [(1E,3S,5Z)-6-iodo-2-methyl-1-(2-methyl-1,3-thiazol-4-yl)hepta-1,5-dien-3-yl] acetate
• CAS: 189453-18-7
• 化学式: C₁₄H₁₈INO₂S
• 分子量: 391.273
• InChiKey: ZUEBMSAIWTUPOI-NAAVJNEUSA-N

物化性质

• 沸点：
  444.2±45.0 °C(Predicted)
• 密度：
  1.500±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.6
• 重原子数：
  19
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.43
• 拓扑面积：
  67.4
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  (1E,3S,5Z)-6-iodo-2-methyl-1-(2-methyl-1,3-thiazol-4-yl)-1,5-heptadien-3-yl acetate 在 sodium hydroxide 、 9-borabicyclo[3.3.1]nonane dimer 、 2,4,6-三氯苯甲酰氯 、 二甲基二环氧乙烷 、 氟化氢吡啶 、 三乙胺 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 为溶剂， 反应 42.83h， 生成 埃博霉素B
  参考文献：
  名称：

  使用多功能不对称催化对映选择性全合成埃坡霉素 A 和 B

  摘要：

  埃坡霉素 A (1) 和 B (2) 的对映选择性全合成使用多功能不对称催化，例如醛的氰基硅烷化、未修饰的酮与醛的醛醇反应以及硫醇与醛的共轭加成中的质子化已经实现了α,β-不饱和硫酯。我们将 1 和 2 分为片段 A、片段 B 和片段 C。片段 A 和 B 的催化不对称合成是使用催化不对称氰基硅烷化作为关键步骤完成的。以两种方式实现片段 C 的对映控制合成。一种是使用未改性酮与醛的直接催化不对称醛醇反应作为关键步骤，另一种是在硫醇与 α,β-不饱和硫酯的共轭加成过程中利用催化不对称质子化作为关键步骤. 片段 A 与片段 C 的 Suzuki 交叉偶联，然后是 Yamaguchi 内酯化作为关键步骤，导致埃坡霉素 A 的对映控制合成 (1)。另一方面哈...

  DOI：

  10.1021/ja002024b
• 作为产物：
  描述：

  Acetic acid (E)-(S)-2-methyl-3-(2-methyl-thiazol-4-yl)-1-(2-oxo-ethyl)-allyl ester 生成 (1E,3S,5Z)-6-iodo-2-methyl-1-(2-methyl-1,3-thiazol-4-yl)-1,5-heptadien-3-yl acetate
  参考文献：
  名称：

  Synthesis of epothilones, intermediates thereto, analogues and uses thereof

  摘要：

  本发明提供了用于制备依托酮A和B、去氧依托酮A和B及其类似物的汇聚过程。还提供了与依托酮A和B相关的类似物以及用于制备它们的中间体。本发明还提供了基于依托酮类似物的新型组合物，以及用于治疗癌症和发展出多药耐药表型的癌症的方法。

  公开号：

  US06369234B1

文献信息

• Total Syntheses of Epothilones A and B
  作者：Dongfang Meng、Peter Bertinato、Aaron Balog、Dai-Shi Su、Ted Kamenecka、Erik J. Sorensen、Samuel J. Danishefsky

  DOI：10.1021/ja971946k

  日期：1997.10.1

  Convergent, stereocontrolled total syntheses of the microtubule-stabilizing macrolides epothilones A (2) and B (3) have been achieved. Four distinct ring-forming strategies were pursued (see Scheme 1). Of these four, three were reduced to practice. In one approach, the action of a base on a substance possessing an acetate ester and a nonenolizable aldehyde brought about a remarkably effective macroaldolization see (89 --> 90 + 91; 99 --> 100 + 101), simultaneously creating the C2-C3 bond and the hydroxyl-bearing stereocenter at C-3. Alternatively, the 16-membered macrolide of the epothilones could be fashioned through a C12-C13 ring-closing olefin metathesis (e.g. see 111 --> 90 + 117; 122 --> 105 + 123) and through macrolactonization of the appropriate hydroxy acid (e.g. see 88 --> 93). The application of a stereospecific B-alkyl Suzuki coupling strategy permitted the establishment of a cis C12-C13 olefin, thus setting the stage for an eventual site-and diastereoselective epoxidation reaction (see 96 --> 2; 106 --> 3). The development of a novel cyclopropane solvolysis strategy for incorporating the geminal methyl groups of the epothilones (see 39 --> 40 --> 41), and the use of Lewis acid catalyzed diene-aldehyde cyclocondensation (LACDAC) (see 35 + 36 --> 37) and asymmetric allylation (see 10 --> 76) methodology are also noteworthy.
• Total Synthesis of(–)-Epothilone B: An Extension of the Suzuki Coupling Method and Insights into Structure–Activity Relationships of the Epothilones
  作者：Dai-Shi Su、Dongfang Meng、Peter Bertinato、Aaron Balog、Erik J. Sorensen、Samuel J. Danishefsky、Yu-Huang Zheng、Ting-Chao Chou、Lifeng He、Susan B. Horwitz

  DOI：10.1002/anie.199707571

  日期：1997.4.18
• New Chemical Synthesis of the Promising Cancer Chemotherapeutic Agent 12,13-Desoxyepothilone B: Discovery of a Surprising Long-Range Effect on the Diastereoselectivity of an Aldol Condensation
  作者：Christina R. Harris、Scott D. Kuduk、Aaron Balog、Ken Savin、Peter W. Glunz、Samuel J. Danishefsky

  DOI：10.1021/ja991189l

  日期：1999.8.1

  The epothilones are naturally occurring cytotoxic molecules that possess the remarkable ability to arrest cell division through the stabilization of microtubule assemblies. Our in vivo studies with 12,13-desoxyepothilone B (dEpoB), have established that the desoxy compound is well tolerated and virtually curative against a variety of sensitive and resistant xenograft tumors in animal models. In light of these discoveries, we sought a chemical synthesis of dEpoB that would be able to support a serious and substantial discovery research program directed toward the clinical development of this molecule. The overall strategy for this endeavor assumed the ability to synthesize dEpoB from three constructs which include an achiral beta,delta-diketo ester construct A, an (S)-2-methylpentenal moiety B, and the thiazoyl-containing vinyl iodide moiety C. We envisioned that a diastereoselective aldol condensation between an achiral C5-C6 (Z)-metalloenolate derived from construct A and an (S)-2-methylalkanal fragment, B, would generate the desired C6-C7 bond. Second, a B-alkyl Suzuki coupling between the vinyl iodide construct C and an alkyl borane would form the C11-C12 bond. Finally, a late-stage reduction of the C3 ketone to the requisite C3 alcohol with high asymmetric induction would permit us to introduce the beta,delta-diketo ester fragment A, into the synthesis as a readily accessible achiral building block. The governing concepts for our new synthesis are described herein.