Acetic acid (4R,6R)-4-(tert-butyl-dimethyl-silanyloxy)-6-(2-hydroxy-butyl)-5,5-dimethyl-tetrahydro-pyran-2-yl ester | 864514-42-1

• 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: Acetic acid (4R,6R)-4-(tert-butyl-dimethyl-silanyloxy)-6-(2-hydroxy-butyl)-5,5-dimethyl-tetrahydro-pyran-2-yl ester
• 英文别名: [(4R,6R)-4-[tert-butyl(dimethyl)silyl]oxy-6-(2-hydroxybutyl)-5,5-dimethyloxan-2-yl] acetate
• CAS: 864514-42-1
• 化学式: C₁₉H₃₈O₅Si
• 分子量: 374.593
• InChiKey: UZYYHGIBWYLAQI-JCCCHCCOSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.24
• 重原子数：
  25
• 可旋转键数：
  8
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.95
• 拓扑面积：
  65
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  Acetic acid (4R,6R)-4-(tert-butyl-dimethyl-silanyloxy)-6-(2-hydroxy-butyl)-5,5-dimethyl-tetrahydro-pyran-2-yl ester 在 四丁基氟化铵 、 戴斯-马丁氧化剂 、 zinc(II) iodide 作用下， 以 四氢呋喃 、 乙腈 为溶剂， 反应 5.67h， 生成
  参考文献：
  名称：

  Studies toward the Unique Pederin Family Member Psymberin: Full Structure Elucidation, Two Alternative Total Syntheses, and Analogs

  摘要：

  Two synthetic approaches to psymberin have been accomplished. A highly convergent first generation synthesis led to the complete stereochemical assignment and demonstrated that psymberin and irciniastatin A are identical compounds. This synthesis featured a diastereoselective aldol coupling between the aryl fragment and a central tetrahydropyran core and a novel one-pot procedure to convert an amide, via intermediacy of a sensitive methyl imidate, to the N-acyl aminal reminiscent of psymberin. The highlights of the second generation synthesis include an efficient iridium-catalyzed enantioselective bisallylation of neopentyl glycol and a stepwise Sonogashira coupling/cycloisomerization/reduction sequence to construct the dihydroisocoumarin unit. The two synthetic avenues were achieved in 17-18 steps (longest linear sequence, similar to 14-15 isolations) from 3 fragments prepared in 7-8 (first generation) and 3-8 (second generation) steps each. This convergent approach allowed for the preparation of sufficient amounts of psymberin (similar to 0.5 g) for follow-up biological studies. Meanwhile, our highly flexible strategy enabled the design and synthesis of multiple analogs, including a psymberin pederin hybrid, termed psympederin, that proved crucial to a comprehensive understanding of the chemical biology of psymberin and related compounds that will be described in a subsequent manuscript.

  DOI：

  10.1021/ja3057612
• 作为产物：
  描述：

  [(2R,4R)-4-(tert-Butyl-dimethyl-silanyloxy)-6-hydroxy-3,3-dimethyl-tetrahydro-pyran-2-yl]-acetaldehyde 在 4-二甲氨基吡啶 、 titanium(IV)isopropoxide 、 (1R)-反-N,N′-1,2-环己二基双(1,1,1-三氟甲磺酰胺) 、 三乙胺 作用下， 以 二氯甲烷 、 甲苯 为溶剂， 反应 8.17h， 生成 Acetic acid (4R,6R)-4-(tert-butyl-dimethyl-silanyloxy)-6-(2-hydroxy-butyl)-5,5-dimethyl-tetrahydro-pyran-2-yl ester
  参考文献：
  名称：

  Studies toward the Unique Pederin Family Member Psymberin: Full Structure Elucidation, Two Alternative Total Syntheses, and Analogs

  摘要：

  Two synthetic approaches to psymberin have been accomplished. A highly convergent first generation synthesis led to the complete stereochemical assignment and demonstrated that psymberin and irciniastatin A are identical compounds. This synthesis featured a diastereoselective aldol coupling between the aryl fragment and a central tetrahydropyran core and a novel one-pot procedure to convert an amide, via intermediacy of a sensitive methyl imidate, to the N-acyl aminal reminiscent of psymberin. The highlights of the second generation synthesis include an efficient iridium-catalyzed enantioselective bisallylation of neopentyl glycol and a stepwise Sonogashira coupling/cycloisomerization/reduction sequence to construct the dihydroisocoumarin unit. The two synthetic avenues were achieved in 17-18 steps (longest linear sequence, similar to 14-15 isolations) from 3 fragments prepared in 7-8 (first generation) and 3-8 (second generation) steps each. This convergent approach allowed for the preparation of sufficient amounts of psymberin (similar to 0.5 g) for follow-up biological studies. Meanwhile, our highly flexible strategy enabled the design and synthesis of multiple analogs, including a psymberin pederin hybrid, termed psympederin, that proved crucial to a comprehensive understanding of the chemical biology of psymberin and related compounds that will be described in a subsequent manuscript.

  DOI：

  10.1021/ja3057612

文献信息

• Synthesis and Complete Stereochemical Assignment of Psymberin/Irciniastatin A
  作者：Xin Jiang、Jorge García-Fortanet、Jef K. De Brabander

  DOI：10.1021/ja0537068

  日期：2005.8.1

  We describe a concise and flexible synthetic avenue for the preparation of compounds with structures relevant to those proposed for the novel marine-derived differential cytotoxins psymberin and irciniastatin A. Our efforts led to their complete stereochemical assignment and the notion that psymberin and irciniastatin A are identical compounds. Our total synthesis features an interesting termini-differentiating

  我们描述了一种简洁灵活的合成途径，用于制备结构与新型海洋衍生差异细胞毒素 psymberin 和 irciniastatin A 相关的化合物。我们的努力导致了它们的完整立体化学分配以及 psymberin 和 irciniastatin A 相同的概念化合物。我们的全合成具有从 C2 对称双烯烃前体获得的二醛的有趣的末端差异化乳醇化、差向异构腈的温和铂催化水解、制备灵敏的亚胺酸甲酯的新方案和一锅法转化这些亚胺酯转化为 N-酰基胺。从片段 5-7 开始（每个片段准备 7-8 个步骤，
• Synthesis and complete stereochemical assignment of psymberin/irciniastatin for use as antitumor compounds
  申请人：Brabander De Jef

  公开号：US20070015821A1

  公开（公告）日：2007-01-18

  The invention relates to the synthesis and complete stereochemical assignments of cytotoxic compounds such as compound 28-a and its stereoisomers: The invention further provides processes for making the compounds, their synthetic intermediates, and for methods of using the compounds and their pharmaceutical compositions for the treatment of neoplastic diseases.

  该发明涉及合成和对细胞毒性化合物的完全立体化学赋值，如化合物28-a及其立体异构体。该发明还提供了制备这些化合物、它们的合成中间体的方法，以及使用这些化合物及其药物组合物治疗肿瘤性疾病的方法。