| 912805-73-3

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• CAS: 912805-73-3
• 化学式: C₆₀H₁₁₈O₁₀Si₅
• 分子量: 1140.02
• InChiKey: IWJWJUBRSLXBCQ-BAVNNYGOSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  17.24
• 重原子数：
  75.0
• 可旋转键数：
  29.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.85
• 拓扑面积：
  100.14
• 氢给体数：
  0.0
• 氢受体数：
  10.0

反应信息

• 作为反应物：
  描述：

  在 palladium on activated charcoal ruthenium trichloride 、 sodium periodate 、 氢气 作用下， 以 甲醇 、 四氯化碳 、 水 、 乙腈 为溶剂， 反应 2.33h， 生成 (3S,5S,6S)-5-[(3S,5S,6S)-5-[(2R,3R,4S,5S)-3,4-bis[[tert-butyl(dimethyl)silyl]oxy]-5-[[tert-butyl(dimethyl)silyl]oxymethyl]oxolan-2-yl]oxy-3-[tert-butyl(dimethyl)silyl]oxy-6-methyloctanoyl]oxy-3-[tert-butyl(dimethyl)silyl]oxy-6-methyloctanoic acid
  参考文献：
  名称：

  Synthetic Studies of Complex Immunostimulants from Quillaja saponaria:  Synthesis of the Potent Clinical Immunoadjuvant QS-21A_api

  摘要：

  QS-21 is one of the most promising new adjuvants for immune response potentiation and dose-sparing in vaccine therapy given its exceedingly high level of potency and its favorable toxicity profile. Melanoma, breast cancer, small cell lung cancer, prostate cancer, HIV-1, and malaria are among the numerous maladies targeted in more than 80 recent and ongoing vaccine therapy clinical trials involving QS-21 as a critical adjuvant component for immune response augmentation. QS-21 is a natural product immunostimulatory adjuvant, eliciting both T-cell- and antibody-mediated immune responses with microgram doses. Herein is reported the synthesis of QS-21A(api) in a highly modular strategy, applying novel glycosylation methodologies to a convergent construction of the potent saponin immunostimulant. The chemical synthesis of QS-21 offers unique opportunities to probe its mode of biological action through the preparation of otherwise unattainable nonnatural saponin analogues.

  DOI：

  10.1021/ja062364i
• 作为产物：
  描述：

  (R)-(+)-5-(benzyloxy)-3-(tert-butyldimethylsilyloxy)pentanal 在 palladium on activated charcoal 4-二甲氨基吡啶 、 ruthenium trichloride 、 sodium periodate 、 正丁基锂 、 potassium tert-butylate 、 氢气 、 三乙胺 作用下， 以 四氢呋喃 、 甲醇 、 四氯化碳 、 二氯甲烷 、 水 、 甲苯 、 乙腈 、 Petroleum ether 为溶剂， 反应 35.8h， 生成
  参考文献：
  名称：

  Synthetic Studies of Complex Immunostimulants from Quillaja saponaria:  Synthesis of the Potent Clinical Immunoadjuvant QS-21A_api

  摘要：

  QS-21 is one of the most promising new adjuvants for immune response potentiation and dose-sparing in vaccine therapy given its exceedingly high level of potency and its favorable toxicity profile. Melanoma, breast cancer, small cell lung cancer, prostate cancer, HIV-1, and malaria are among the numerous maladies targeted in more than 80 recent and ongoing vaccine therapy clinical trials involving QS-21 as a critical adjuvant component for immune response augmentation. QS-21 is a natural product immunostimulatory adjuvant, eliciting both T-cell- and antibody-mediated immune responses with microgram doses. Herein is reported the synthesis of QS-21A(api) in a highly modular strategy, applying novel glycosylation methodologies to a convergent construction of the potent saponin immunostimulant. The chemical synthesis of QS-21 offers unique opportunities to probe its mode of biological action through the preparation of otherwise unattainable nonnatural saponin analogues.

  DOI：

  10.1021/ja062364i