(2R,3S,4E,6E)-8-[(2S,3R,6S,8R,9S)-3-butyl-3-[tert-butyl(dimethyl)silyl]oxy-2-ethynyl-9-methyl-1,7-dioxaspiro[5.5]undecan-8-yl]-3-hydroxy-2,6-dimethyl-1-[(4S)-4-propan-2-yl-2-sulfanylidene-1,3-oxazolidin-3-yl]octa-4,6-dien-1-one | 757192-04-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 氮杂螺癸烷衍生物
• 英文名称: (2R,3S,4E,6E)-8-[(2S,3R,6S,8R,9S)-3-butyl-3-[tert-butyl(dimethyl)silyl]oxy-2-ethynyl-9-methyl-1,7-dioxaspiro[5.5]undecan-8-yl]-3-hydroxy-2,6-dimethyl-1-[(4S)-4-propan-2-yl-2-sulfanylidene-1,3-oxazolidin-3-yl]octa-4,6-dien-1-one
• CAS: 757192-04-4
• 化学式: C₃₈H₆₃NO₆SSi
• 分子量: 690.073
• InChiKey: RKEXIYDJEJOWPO-HVNZXEBTSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  8.32
• 重原子数：
  47
• 可旋转键数：
  13
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.79
• 拓扑面积：
  110
• 氢给体数：
  1
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  (2R,3S,4E,6E)-8-[(2S,3R,6S,8R,9S)-3-butyl-3-[tert-butyl(dimethyl)silyl]oxy-2-ethynyl-9-methyl-1,7-dioxaspiro[5.5]undecan-8-yl]-3-hydroxy-2,6-dimethyl-1-[(4S)-4-propan-2-yl-2-sulfanylidene-1,3-oxazolidin-3-yl]octa-4,6-dien-1-one 在 咪唑 、 4-二甲氨基吡啶 、 sodium tetrahydroborate 、 四丁基氟化铵 、 N,N'-二环己基碳二亚胺 作用下， 以 四氢呋喃 、 二氯甲烷 、 水 为溶剂， 50.0 ℃ 、400.0 MPa 条件下， 生成 4-O-[(2S,3R,6S,8R,9S)-8-[(2E,4E,6S,7S)-6,8-bis[[tert-butyl(dimethyl)silyl]oxy]-3,7-dimethylocta-2,4-dienyl]-3-butyl-2-ethynyl-9-methyl-1,7-dioxaspiro[5.5]undecan-3-yl] 1-O-(2-trimethylsilylethyl) butanedioate
  参考文献：
  名称：

  Total Synthesis of (−)-Reveromycin A

  摘要：

  The asymmetric total synthesis of (-)-reveromycin A is described. The key steps involved a Lewis acid catalyzed inverse electron demand hetero-Diels-Alder reaction followed by hydroboration/oxidation to afford the spiroketal core 4 in a highly stereoselective manner and introduction of the C18 hemisuccinate by high-pressure acylation.

  DOI：

  10.1021/ol048811l
• 作为产物：
  描述：

  tert-butyl-dimethyl-[2-[(2R,3S)-3-methyl-6-methylideneoxan-2-yl]ethoxy]silane 在 palladium dihydroxide 、 Eu(fod)3 N-乙基哌啶 、 2,6-二甲基吡啶 、 tin(II) trifluoromethanesulfonate 、 硼烷四氢呋喃络合物 、 氢气 、 二异丁基氢化铝 、 戴斯-马丁氧化剂 作用下， 反应 72.0h， 生成 (2R,3S,4E,6E)-8-[(2S,3R,6S,8R,9S)-3-butyl-3-[tert-butyl(dimethyl)silyl]oxy-2-ethynyl-9-methyl-1,7-dioxaspiro[5.5]undecan-8-yl]-3-hydroxy-2,6-dimethyl-1-[(4S)-4-propan-2-yl-2-sulfanylidene-1,3-oxazolidin-3-yl]octa-4,6-dien-1-one
  参考文献：
  名称：

  Total Synthesis of (−)-Reveromycin A

  摘要：

  The asymmetric total synthesis of (-)-reveromycin A is described. The key steps involved a Lewis acid catalyzed inverse electron demand hetero-Diels-Alder reaction followed by hydroboration/oxidation to afford the spiroketal core 4 in a highly stereoselective manner and introduction of the C18 hemisuccinate by high-pressure acylation.

  DOI：

  10.1021/ol048811l

文献信息

• Total Synthesis of (-)-Reveromycin A via a Hetero-Diels-Alder Approach
  作者：Mark Rizzacasa、Mariana El Sous、Danny Ganame、Peter Tregloan

  DOI：10.1055/s-0030-1258308

  日期：2010.12

  The asymmetric total synthesis of (-)-reveromycin A is described which utilizes a Lewis acid catalyzed inverse electron demand­ hetero-Diels-Alder reaction followed by hydroboration/oxidation to afford the labile [6,6]-spiroketal core in a highly stereo­selective manner. An asymmetric syn-aldol reaction installed the stereochemistry at C4-C5 whilst a Stille cross coupling was utilized to form the C21-C22 bond. The C18 hemisuccinate was formed by high pressure acylation reaction and a final Wittig extension followed by global deprotection with tetrabutylammonium fluo­ride gave (-)-reveromycin A.

  (-)-reveromycin A的不对称全合成方法如下：首先通过Lewis酸催化的反向电子需求杂-Diels-Alder反应，接着进行氢硼化/氧化反应，高立体选择性地获得不稳定的[6,6]-螺内酯核心结构。通过不对称顺式醛醇反应确定C4-C5的立体化学结构，而利用Stille交叉偶联反应形成C21-C22键。通过高压酰化反应形成C18半琥珀酸酯，最后进行Wittig扩展和四丁基氟化铵的全保护基去保护，得到(-)-reveromycin A。