(2S,3R,4aR,9aR)-7-[(E)-2-[4-[(2E)-3,7-dimethylocta-2,6-dienyl]-3,5-bis(methoxymethoxy)phenyl]ethenyl]-2,3,5-tris(methoxymethoxy)-1,1,4a-trimethyl-3,4,9,9a-tetrahydro-2H-xanthene | 1263362-19-1

• 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,3R,4aR,9aR)-7-[(E)-2-[4-[(2E)-3,7-dimethylocta-2,6-dienyl]-3,5-bis(methoxymethoxy)phenyl]ethenyl]-2,3,5-tris(methoxymethoxy)-1,1,4a-trimethyl-3,4,9,9a-tetrahydro-2H-xanthene
• CAS: 1263362-19-1
• 化学式: C₄₄H₆₄O₁₁
• 分子量: 768.986
• InChiKey: ICTIVRFNKBGRCG-XXJTUDHISA-N

计算性质

• 辛醇/水分配系数(LogP)：
  9.3
• 重原子数：
  55
• 可旋转键数：
  22
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.59
• 拓扑面积：
  102
• 氢给体数：
  0
• 氢受体数：
  11

反应信息

• 作为反应物：
  描述：

  (2S,3R,4aR,9aR)-7-[(E)-2-[4-[(2E)-3,7-dimethylocta-2,6-dienyl]-3,5-bis(methoxymethoxy)phenyl]ethenyl]-2,3,5-tris(methoxymethoxy)-1,1,4a-trimethyl-3,4,9,9a-tetrahydro-2H-xanthene 在 对甲苯磺酸 作用下， 以 甲醇 为溶剂， 反应 48.0h， 以58%的产率得到schweinfurthin A
  参考文献：
  名称：

  Exploration of Cascade Cyclizations Terminated by Tandem Aromatic Substitution: Total Synthesis of (+)-Schweinfurthin A

  摘要：

  The termination of epoxide-initiated cascade cyclizations with a range of "protected" phenols is described. When the protecting group can be lost as a stabilized electrophile, the cascade process continues beyond ring closure to afford products which have undergone a tandem electrophilic aromatic substitution. A number of groups have proven viable in this process and the regiochemistry of their substitution reactions has been studied. Application of this methodology in the first total synthesis of (+)-schweinfurthin A, a potent antiproliferative agent, has been achieved.

  DOI：

  10.1021/jo1022102
• 作为产物：
  描述：

  (2R,4aR,9aR)-7-(methoxymethyl)-1,1,4a-trimethyl-3,4,9,9a-tetrahydro-2H-xanthene-2,5-diol 在 sodium tetrahydroborate 、 sodium periodate 、 四氧化锇 、 正丁基锂 、 四丙基高钌酸铵 、 cerium(III) chloride heptahydrate 、 水 、 N-甲基吗啉氧化物 、 二异丙胺 、 N,N-二异丙基乙胺 、 2,3-二氯-5,6-二氰基-1,4-苯醌 、 potassium hydroxide 作用下， 以 四氢呋喃 、 1,4-二氧六环 、 甲醇 、 hexanes 、 乙醇 、 二氯甲烷 、 水 、 叔丁醇 为溶剂， 反应 81.33h， 生成 (2S,3R,4aR,9aR)-7-[(E)-2-[4-[(2E)-3,7-dimethylocta-2,6-dienyl]-3,5-bis(methoxymethoxy)phenyl]ethenyl]-2,3,5-tris(methoxymethoxy)-1,1,4a-trimethyl-3,4,9,9a-tetrahydro-2H-xanthene
  参考文献：
  名称：

  Exploration of Cascade Cyclizations Terminated by Tandem Aromatic Substitution: Total Synthesis of (+)-Schweinfurthin A

  摘要：

  The termination of epoxide-initiated cascade cyclizations with a range of "protected" phenols is described. When the protecting group can be lost as a stabilized electrophile, the cascade process continues beyond ring closure to afford products which have undergone a tandem electrophilic aromatic substitution. A number of groups have proven viable in this process and the regiochemistry of their substitution reactions has been studied. Application of this methodology in the first total synthesis of (+)-schweinfurthin A, a potent antiproliferative agent, has been achieved.

  DOI：

  10.1021/jo1022102

文献信息

• Exploration of Cascade Cyclizations Terminated by Tandem Aromatic Substitution: Total Synthesis of (+)-Schweinfurthin A
  作者：Joseph J. Topczewski、John G. Kodet、David F. Wiemer

  DOI：10.1021/jo1022102

  日期：2011.2.4

  The termination of epoxide-initiated cascade cyclizations with a range of "protected" phenols is described. When the protecting group can be lost as a stabilized electrophile, the cascade process continues beyond ring closure to afford products which have undergone a tandem electrophilic aromatic substitution. A number of groups have proven viable in this process and the regiochemistry of their substitution reactions has been studied. Application of this methodology in the first total synthesis of (+)-schweinfurthin A, a potent antiproliferative agent, has been achieved.