10α-dihydroartemisinyl butanoate

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 异戊烯醇脂质
• 英文名称: 10α-dihydroartemisinyl butanoate
• 英文别名: 10-dihydroartemisinyl butyrate；10a-dihydroartemisinyl butanoate；[(1R,4S,5R,8S,9R,10S,12R,13R)-1,5,9-trimethyl-11,14,15,16-tetraoxatetracyclo[10.3.1.04,13.08,13]hexadecan-10-yl] butanoate
• 化学式: C₁₉H₃₀O₆
• 分子量: 354.444
• InChiKey: PZXFCRNPLRHHOV-VXKCIIDGSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.9
• 重原子数：
  25
• 可旋转键数：
  4
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.95
• 拓扑面积：
  63.2
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为产物：
  描述：

  dihydroartemisinin 、 丁酰氯 在 三乙胺 作用下， 以 二氯甲烷 为溶剂， 反应 24.0h， 以18.7%的产率得到10α-dihydroartemisinyl butanoate
  参考文献：
  名称：

  Antimalarial activity of 10-alkyl/aryl esters and -aminoethylethers of artemisinin

  摘要：

  A series of n-alkyl/aryl esters were synthesized and their in vitro antiplasmodial activity was measured alongside that of previously synthesized aminoethylethers of artemisinin ozonides against various strains of Plasmodium falciparum. The cytotoxicity against human cell lines was also assessed. The esters were synthesized in a one-step reaction by derivatization on carbon C-10 of dihydroartemisinin. Both classes were active against both the 3D7 and K1 strains of P. falciparum, with all compounds being significantly more potent than artemether against both strains. The majority of compounds possessed potency either comparable or more than artesunate with a high degree of selectivity towards the parasitic cells. The 10 alpha-n-propyl 11 and 10 alpha-benzyl 18 esters were the most potent of all synthesized ozonides, possessing a moderate (similar to 3-fold) and significant (22- and 12-fold, respectively) potency increases against the 3D7 and K1 strains, respectively, in comparison with artesunate. (C) 2012 Elsevier Inc. All rights reserved.

  DOI：

  10.1016/j.bioorg.2012.10.002

文献信息

• Nickel Catalysis via S_H2 Homolytic Substitution: The Double Decarboxylative Cross-Coupling of Aliphatic Acids
  作者：Artem V. Tsymbal、Lorenzo Delarue Bizzini、David W. C. MacMillan

  DOI：10.1021/jacs.2c08989

  日期：2022.11.23

  generation, radical sorting via selective binding to a Ni(II) center, and bimolecular homolytic substitution (SH2) at a high-valent nickel–alkyl complex. This catalytic manifold enables the hitherto elusive cross-coupling of diverse aliphatic carboxylic acids to generate valuable C(sp3)–C(sp3)-products. Notably, the powerful SH2 mechanism provides general access to sterically encumbered quaternary carbon

  交叉偶联平台传统上是围绕一系列闭壳步骤构建的，例如氧化加成、金属转移和还原消除。在此，我们描述了一种双光/镍催化歧管，它通过互补序列进行交叉偶联，涉及自由基生成、通过选择性结合到 Ni(II) 中心的自由基分选以及高催化下的双分子均解取代 (S H 2)。 -价镍-烷基络合物。这种催化歧管能够实现迄今为止难以捉摸的不同脂肪族羧酸的交叉偶联，生成有价值的 C(sp 3 )–C(sp 3 )-产物。值得注意的是，强大的 S H 2 机制提供了对空间阻碍的季碳中心的普遍访问，解决了片段偶联化学中长期存在的挑战。