tert-butyl-[(2S)-2,3-dimethyl-3-(oxan-2-yloxy)butoxy]-diphenylsilane | 1246949-36-9

• 分子结构分类: 有机化合物 - 有机金属化合物 - 有机类金属化合物
• 英文名称: tert-butyl-[(2S)-2,3-dimethyl-3-(oxan-2-yloxy)butoxy]-diphenylsilane
• CAS: 1246949-36-9
• 化学式: C₂₇H₄₀O₃Si
• 分子量: 440.698
• InChiKey: HJFPPFVVBQMBGP-XADRRFQNSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.52
• 重原子数：
  31
• 可旋转键数：
  9
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.56
• 拓扑面积：
  27.7
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  tert-butyl-[(2S)-2,3-dimethyl-3-(oxan-2-yloxy)butoxy]-diphenylsilane 在 正丁基锂 、 四丙基高钌酸铵 、 四丁基氟化铵 、 水 、 mercuric triflate 、 N-甲基吗啉氧化物 作用下， 以 四氢呋喃 、 乙醚 、 正己烷 、 二氯甲烷 、 乙腈 为溶剂， 反应 8.09h， 生成 (3α,5α,11β,17ξ,22S,24S)-3,11-bis(benzyloxy)-24-methyl-22,25-epoxyfurostan-20-ol
  参考文献：
  名称：

  Synthesis of the Antiproliferative Agent Hippuristanol and Its Analogues via Suárez Cyclizations and Hg(II)-Catalyzed Spiroketalizations

  摘要：

  A full account of the synthesis of hippuristanol and its analogues is described. Hecogenin acetate was identified as a suitable and economical starting material for this work, and substrate-controlled stereo-selection was obtained throughout the construction of the key spiroketal unit. Suarez cyclization was first used, but Hg(II)-catalyzed spiroketalization of the 3-alkyne-1,7-diol motif was finally identified as the most convenient strategy.

  DOI：

  10.1021/jo102054r
• 作为产物：
  描述：

  (2S)-2,3-二甲基-1,3-丁二醇 、 叔丁基二苯基氯硅烷 在 咪唑 、 4-甲基苯磺酸吡啶 作用下， 以 二氯甲烷 为溶剂， 反应 3.75h， 生成 tert-butyl-[(2S)-2,3-dimethyl-3-(oxan-2-yloxy)butoxy]-diphenylsilane
  参考文献：
  名称：

  Synthesis of the Antiproliferative Agent Hippuristanol and Its Analogues via Suárez Cyclizations and Hg(II)-Catalyzed Spiroketalizations

  摘要：

  A full account of the synthesis of hippuristanol and its analogues is described. Hecogenin acetate was identified as a suitable and economical starting material for this work, and substrate-controlled stereo-selection was obtained throughout the construction of the key spiroketal unit. Suarez cyclization was first used, but Hg(II)-catalyzed spiroketalization of the 3-alkyne-1,7-diol motif was finally identified as the most convenient strategy.

  DOI：

  10.1021/jo102054r

文献信息

• Efficient Synthetic Approach to Potent Antiproliferative Agent Hippuristanol via Hg(II)-Catalyzed Spiroketalization
  作者：Kontham Ravindar、Maddi Sridhar Reddy、Lisa Lindqvist、Jerry Pelletier、Pierre Deslongchamps

  DOI：10.1021/ol1019663

  日期：2010.10.1

  The steroidal natural product hippuristanol targets eukaryotic translation initiation factor (eIF)4A which plays a pivotal role in translation in eukaryotic cells. Now an efficient synthesis of hippuristanol from 11-ketotigogenin is reported. The synthesis features a rapid construction of a spiroketal unit via Hg(OTf)2-catalyzed oxidation/spiroketalization of the 3-alkyn-1,7-diol motif.

  类固醇天然产物hippuristanol靶向真核翻译起始因子（eIF）4A，该因子在真核细胞的翻译中起关键作用。现在已经报道了由11-酮基生成素有效合成马尿嘌呤醇。该合成的特征是通过Hg（OTf）2催化3-炔基1,7-二醇基序的氧化/螺缩酮化作用来快速构建螺缩酮单元。
• Synthesis of the Antiproliferative Agent Hippuristanol and Its Analogues via Suárez Cyclizations and Hg(II)-Catalyzed Spiroketalizations
  作者：Kontham Ravindar、Maddi Sridhar Reddy、Lisa Lindqvist、Jerry Pelletier、Pierre Deslongchamps

  DOI：10.1021/jo102054r

  日期：2011.3.4

  A full account of the synthesis of hippuristanol and its analogues is described. Hecogenin acetate was identified as a suitable and economical starting material for this work, and substrate-controlled stereo-selection was obtained throughout the construction of the key spiroketal unit. Suarez cyclization was first used, but Hg(II)-catalyzed spiroketalization of the 3-alkyne-1,7-diol motif was finally identified as the most convenient strategy.