(2S,4R,6R)-6-[(2S,3R)-3-[(3R)-6,8-bis[(4-methoxyphenyl)methoxy]-5-methyl-1-oxo-3,4-dihydroisochromen-3-yl]-2-hydroxybutyl]-4-[tert-butyl(dimethyl)silyl]oxy-5,5-dimethyloxane-2-carbonitrile | 864514-28-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并吡喃
• 英文名称: (2S,4R,6R)-6-[(2S,3R)-3-[(3R)-6,8-bis[(4-methoxyphenyl)methoxy]-5-methyl-1-oxo-3,4-dihydroisochromen-3-yl]-2-hydroxybutyl]-4-[tert-butyl(dimethyl)silyl]oxy-5,5-dimethyloxane-2-carbonitrile
• CAS: 864514-28-3
• 化学式: C₄₄H₅₉NO₉Si
• 分子量: 774.039
• InChiKey: XYGWLBYMGCSQLN-GEEFJHFESA-N

计算性质

• 辛醇/水分配系数(LogP)：
  8.74
• 重原子数：
  55
• 可旋转键数：
  15
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.55
• 拓扑面积：
  126
• 氢给体数：
  1
• 氢受体数：
  10

反应信息

• 作为反应物：
  描述：

  (2S,4R,6R)-6-[(2S,3R)-3-[(3R)-6,8-bis[(4-methoxyphenyl)methoxy]-5-methyl-1-oxo-3,4-dihydroisochromen-3-yl]-2-hydroxybutyl]-4-[tert-butyl(dimethyl)silyl]oxy-5,5-dimethyloxane-2-carbonitrile 在 palladium on activated charcoal 2-乙烯基吡啶 、 lithium hydroxide 、 sodium tetrahydroborate 、 (Me₂PO)2HPt(Me₂POH) 、 四丁基氟化铵 、 水 、 氢气 、 N,N-二异丙基乙胺 作用下， 以 四氢呋喃 、 吡啶 、 甲醇 、 乙醇 、 二氯甲烷 、 甲苯 为溶剂， 40.0 ℃ 、101.33 kPa 条件下， 反应 58.83h， 生成 irciniastatin A
  参考文献：
  名称：

  Psymberin/Irciniastatin A 的合成和完整立体化学分配

  摘要：

  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，

  DOI：

  10.1021/ja0537068
• 作为产物：
  描述：

  2,4-二甲氧基甲苯 在 sodium periodate 、 四氧化锇 、 氯化亚砜 、 二氯苯酚溴酯 、 仲丁基锂 、 三溴化硼 、 potassium carbonate 、 N-甲基吗啉氧化物 、 N,N-二异丙基乙胺 、 儿萘酚硼烷 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 、 环己烷 、 水 、 N,N-二甲基甲酰胺 、 叔丁醇 、 苯 为溶剂， 反应 91.0h， 生成 (2S,4R,6R)-6-[(2S,3R)-3-[(3R)-6,8-bis[(4-methoxyphenyl)methoxy]-5-methyl-1-oxo-3,4-dihydroisochromen-3-yl]-2-hydroxybutyl]-4-[tert-butyl(dimethyl)silyl]oxy-5,5-dimethyloxane-2-carbonitrile
  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。
• Studies toward the Unique Pederin Family Member Psymberin: Full Structure Elucidation, Two Alternative Total Syntheses, and Analogs
  作者：Yu Feng、Xin Jiang、Jef K. De Brabander

  DOI：10.1021/ja3057612

  日期：2012.10.17

  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.