N-[6-N-(cholest-5-en-3β-yloxycarbonyl)aminohexyl]pyridinium bromide | 1191385-32-6

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 类固醇和类固醇衍生物
• 英文名称: N-[6-N-(cholest-5-en-3β-yloxycarbonyl)aminohexyl]pyridinium bromide
• 英文别名: N-[6-(cholest-5-en-3β-yloxycarbonylamino)hexyl]pyridinium bromide；CcHPB；[(3S,8S,9S,10R,13R,14S,17R)-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-yl] N-(6-pyridin-1-ium-1-ylhexyl)carbamate;bromide
• CAS: 1191385-32-6
• 化学式: Br*C₃₉H₆₃N₂O₂
• 分子量: 671.845
• InChiKey: FQFCEEDBSWVQCK-HEYPLQQDSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.67
• 重原子数：
  44
• 可旋转键数：
  14
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.79
• 拓扑面积：
  42.2
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  cholest-5-en-3β-yl N-(6-hydroxyhexyl)carbamate 在 四溴化碳 、 三苯基膦 作用下， 以 二氯甲烷 为溶剂， 反应 2.0h， 生成 N-[6-N-(cholest-5-en-3β-yloxycarbonyl)aminohexyl]pyridinium bromide
  参考文献：
  名称：

  Structure–transfection activity relationships in a series of novel cationic lipids with heterocyclic head-groups

  摘要：

  阳离子脂质体是输送各种治疗性核酸的有前景的候选物。这里，我们报告了一种方便的合成方法，合成含有各种疏水域（十四烷醇、二烷基甘油、胆固醇）和正电荷头部基团（吡啶鎓、N-甲基咪唑鎓、N-甲基吗啉鎓）的氨基甲酸酯型阳离子脂质，并提供了结构-转染活性关系的数据。研究发现，单链脂质具有高表面活性，这与其通过疏水和静电相互作用破坏细胞膜的能力相关，导致高细胞毒性。含有这些脂质的脂质体对所有细胞系也显示高细胞毒性。不管化学结构如何，所有阳离子脂质形成的脂质体具有相似的尺寸和表面电位。由阳离子脂质体和核酸组成的复合物的特性主要取决于核酸类型和P/N比率。在寡脱氧核苷酸输送的情况下，转染活性取决于阳离子头部基团的类型，无论疏水域的类型如何：所有类型的阳离子脂质体都能有效地将寡核苷酸转移到80-90%的真核细胞中，而基于含有N-甲基吗啉鎓阳离子头部基团的脂质的脂质体显示出最高的转染活性。在质粒DNA和siRNA的情况下，疏水域的类型决定了转染活性：由基于胆固醇的脂质组成的脂质体在DNA转移中最有效，而含有基于甘油的脂质的脂质体在无血清条件下在siRNA输送中显示出合理的活性。

  DOI：

  10.1039/c3ob40442k

文献信息

• Novel Cholesterol-Based Cationic Lipids for Gene Delivery
  作者：Darya A. Medvedeva、Mikhail A. Maslov、Roman N. Serikov、Nina G. Morozova、Galina A. Serebrenikova、Dmitry V. Sheglov、Alexander V. Latyshev、Valentin V. Vlassov、Marina A. Zenkova

  DOI：10.1021/jm901022t

  日期：2009.11.12

  Gene therapy based on gene delivery is a promising strategy for the treatment of human disease. Here we present data oil structure/biological activity of new biodegradable cholesterol-based cationic lipids with various heterocyclic cationic head groups and linker types. Enhanced accumulation of nucleic acids in the cells mediated by the lipids was demonstrated by fluorescent microscopy and flow cytometry. Light scattering and atomic force microscopy were used to find structure/transfection activity correlations for the lipids. We found that the ability of the lipids to stimulate intracellular accumulation of the oligodeoxyribonucleotides and plasmid DNA correlates well with their ability to form in solution lipid/NA complexes of sizes that do not exceed 100 nm. Screening of the lipids revealed the most promising transfection agents both in terms of low toxicity and efficient delivery: cholesterol-based lipids with positively charged pyridine and methyl imidazole head groups and either the ester or carbamate linker.
• Structure–transfection activity relationships in a series of novel cationic lipids with heterocyclic head-groups
  作者：Ekaterina A. Ivanova、Mikhail A. Maslov、Tatyana O. Kabilova、Pavel A. Puchkov、Anna S. Alekseeva、Ivan A. Boldyrev、Valentin V. Vlassov、Galina A. Serebrennikova、Nina G. Morozova、Marina A. Zenkova

  DOI：10.1039/c3ob40442k

  日期：——

  Cationic liposomes are promising candidates for the delivery of various therapeutic nucleic acids. Here, we report a convenient synthesis of carbamate-type cationic lipids with various hydrophobic domains (tetradecanol, dialkylglycerol, cholesterol) and positively charged head-groups (pyridinium, N-methylimidazolium, N-methylmorpholinium) and data on the structure–transfection activity relationships. It was found that single-chain lipids possess high surface activity, which correlates with high cytotoxicity due to their ability to disrupt the cellular membrane by combined hydrophobic and electrostatic interactions. Liposomes containing these lipids also display high cytotoxicity with respect to all cell lines. Irrespective of chemical structures, all cationic lipids form liposomes with similar sizes and surface potentials. The characteristics of complexes composed of cationic liposomes and nucleic acids depend mostly on the type of nucleic acid and P/N ratios. In the case of oligodeoxyribonucleotide delivery, the transfection activity depends on the type of cationic head-group regardless of the type of hydrophobic domain: all types of cationic liposomes mediate efficient oligonucleotide transfer into 80–90% of the eukaryotic cells, and liposomes based on lipids with N-methylmorpholinium cationic head-group display the highest transfection activity. In the case of plasmid DNA and siRNA, the type of hydrophobic domain determines the transfection activity: liposomes composed of cholesterol-based lipids were the most efficient in DNA transfer, while liposomes containing glycerol-based lipids exhibited reasonable activity in siRNA delivery under serum-free conditions.

  阳离子脂质体是输送各种治疗性核酸的有前景的候选物。这里，我们报告了一种方便的合成方法，合成含有各种疏水域（十四烷醇、二烷基甘油、胆固醇）和正电荷头部基团（吡啶鎓、N-甲基咪唑鎓、N-甲基吗啉鎓）的氨基甲酸酯型阳离子脂质，并提供了结构-转染活性关系的数据。研究发现，单链脂质具有高表面活性，这与其通过疏水和静电相互作用破坏细胞膜的能力相关，导致高细胞毒性。含有这些脂质的脂质体对所有细胞系也显示高细胞毒性。不管化学结构如何，所有阳离子脂质形成的脂质体具有相似的尺寸和表面电位。由阳离子脂质体和核酸组成的复合物的特性主要取决于核酸类型和P/N比率。在寡脱氧核苷酸输送的情况下，转染活性取决于阳离子头部基团的类型，无论疏水域的类型如何：所有类型的阳离子脂质体都能有效地将寡核苷酸转移到80-90%的真核细胞中，而基于含有N-甲基吗啉鎓阳离子头部基团的脂质的脂质体显示出最高的转染活性。在质粒DNA和siRNA的情况下，疏水域的类型决定了转染活性：由基于胆固醇的脂质组成的脂质体在DNA转移中最有效，而含有基于甘油的脂质的脂质体在无血清条件下在siRNA输送中显示出合理的活性。