N^α,N^ε-bis(hexadecanoyl)-L-lysine benzyl ester | 258875-39-7

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: N^α,N^ε-bis(hexadecanoyl)-L-lysine benzyl ester
• 英文别名: bis-palmitoyl-L-Lys-O-Bzl；benzyl (2S)-2,6-bis(hexadecanoylamino)hexanoate
• CAS: 258875-39-7
• 化学式: C₄₅H₈₀N₂O₄
• 分子量: 713.141
• InChiKey: SAWONCZLQTYJID-WBCKFURZSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  16
• 重原子数：
  51
• 可旋转键数：
  38
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.8
• 拓扑面积：
  84.5
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  N^α,N^ε-bis(hexadecanoyl)-L-lysine benzyl ester 在 钯 氢气 作用下， 以 乙醇 为溶剂， 反应 5.0h， 以88%的产率得到N(2),N(6)-二棕榈酰赖氨酸
  参考文献：
  名称：

  来自α-氨基酸的脂质的超分子受体

  摘要：

  制备了衍生自L-，D-，DL-谷氨酸，L-天冬氨酸，L-赖氨酸，L-鸟氨酸和L -2,4-二氨基丁酸的阴离子脂质，以及与结构相关的溶剂化阳离子苯乙烯基苯乙烯的方法研究了将染料掺入这些脂质聚集体中的方法。的大号-或d具有戊二酸头基的β-谷氨酸衍生的脂质聚集形成特定的疏水腔，其主要基于平面性识别而表现出对苯乙烯基染料的包涵能力。这样的特定疏水腔的形成不仅可以通过在聚集体中引入能够与相邻脂质之间互补的氢键结合的酰胺基，而且可以通过将适当的间隔基亚甲基引入例如戊二酸酯头基来实现。还发现氨基酸残基的侧链亚甲基在特定的疏水腔以及间隔基亚甲基的形成中起重要作用。还为适当设计的L-赖氨酸和L形成了此类腔-鸟氨酸来源的脂质。这些结果表明，特异性掺入不是谷氨酸来源的脂质所特有的，而是来自适当设计的L-氨基酸来源的脂质的聚集体的普遍现象。在组装的方式的差异大号之间谷氨酸残基大号- ， - d -异构体，和DL

  DOI：

  10.1039/a903956b
• 作为产物：
  描述：

  L-赖氨酸 在 N,N'-二环己基碳二亚胺 作用下， 以 氯仿 、 苯 为溶剂， 反应 23.0h， 生成 N^α,N^ε-bis(hexadecanoyl)-L-lysine benzyl ester
  参考文献：
  名称：

  Synthesis and Assembly of Poly(ethylene glycol)−Lipids with Mono-, Di-, and Tetraacyl Chains and a Poly(ethylene glycol) Chain of Various Molecular Weights

  摘要：

  We synthesized a series of amphiphiles with poly(ethylene glycol) [MW 2000 (PEG20), 5000 (PEG50), 12 500 (PEG125)] as a headgroup and one, two, or four palmitoyl chains (1C16, 2C16, or 4C16), using a lysine monodendron as a connector. The relationship between the hydrophilic-hydrophobic balance of the multiacyl PEG-lipids and the physicochemical characteristics in self- or co-assembly with phospholipids were studied. The PEG-lipids were easily synthesized by combination of a general liquid-phase peptide synthesis and the acylation of an amino acid. The PEG part of the PEG-lipid films was crystallized to show a typical spherulite pattern. The thermal properties and microscopic observation revealed the phase separation of PEG and acyl chain parts. The critical micelle concentrations (cmcs) mainly depend on the number of acyl chains rather than the molecular weight of the PEG chain, although the area per molecule is dependent on the molecular weight of the PEG chain rather than the number of the acyl chains. The gel-to-liquid crystalline phase transition temperature was increased with the increasing number of acyl chains and the decreasing molecular weight of the PEG chain. The PEG-lipids in the aqueous dispersions assemble to take fibrous structures with bimolecular thickness because of the intermolecular hydrogen bonding. The PEG-lipids were immobilized onto the surface of the phospholipid vesicles by simply adding their aqueous dispersions to the vesicle dispersion; however, they dissociated from the vesicles on dilution of the mixed dispersion because they were incorporated into the vesicles in an equilibrium state. To prevent the dissociation of the PEG-lipids, at least two and four acyl chains were required for PEG with M-W 5000 and 12 500, respectively. The aggregation of the vesicles by the addition of water-soluble polymers was significantly inhibited with the increasing molecular weight of the PEG chain. For the tight immobilization of the PEG-lipids with the long PEG chain onto the vesicular surface, an increased number of acyl chains is necessary, and the surface modification with the long PEG chains significantly increases the dispersion stability of the vesicles.

  DOI：

  10.1021/ja000835+

文献信息

• Synthesis and Assembly of Poly(ethylene glycol)−Lipids with Mono-, Di-, and Tetraacyl Chains and a Poly(ethylene glycol) Chain of Various Molecular Weights
  作者：Shinji Takeoka、Katsura Mori、Haruki Ohkawa、Keitaro Sou、Eishun Tsuchida

  DOI：10.1021/ja000835+

  日期：2000.8.23

  We synthesized a series of amphiphiles with poly(ethylene glycol) [MW 2000 (PEG20), 5000 (PEG50), 12 500 (PEG125)] as a headgroup and one, two, or four palmitoyl chains (1C16, 2C16, or 4C16), using a lysine monodendron as a connector. The relationship between the hydrophilic-hydrophobic balance of the multiacyl PEG-lipids and the physicochemical characteristics in self- or co-assembly with phospholipids were studied. The PEG-lipids were easily synthesized by combination of a general liquid-phase peptide synthesis and the acylation of an amino acid. The PEG part of the PEG-lipid films was crystallized to show a typical spherulite pattern. The thermal properties and microscopic observation revealed the phase separation of PEG and acyl chain parts. The critical micelle concentrations (cmcs) mainly depend on the number of acyl chains rather than the molecular weight of the PEG chain, although the area per molecule is dependent on the molecular weight of the PEG chain rather than the number of the acyl chains. The gel-to-liquid crystalline phase transition temperature was increased with the increasing number of acyl chains and the decreasing molecular weight of the PEG chain. The PEG-lipids in the aqueous dispersions assemble to take fibrous structures with bimolecular thickness because of the intermolecular hydrogen bonding. The PEG-lipids were immobilized onto the surface of the phospholipid vesicles by simply adding their aqueous dispersions to the vesicle dispersion; however, they dissociated from the vesicles on dilution of the mixed dispersion because they were incorporated into the vesicles in an equilibrium state. To prevent the dissociation of the PEG-lipids, at least two and four acyl chains were required for PEG with M-W 5000 and 12 500, respectively. The aggregation of the vesicles by the addition of water-soluble polymers was significantly inhibited with the increasing molecular weight of the PEG chain. For the tight immobilization of the PEG-lipids with the long PEG chain onto the vesicular surface, an increased number of acyl chains is necessary, and the surface modification with the long PEG chains significantly increases the dispersion stability of the vesicles.
• Supramolecular receptors from α-amino acid-derived lipids
  作者：Hiroshi Hachisako、Yutaka Murata、Hirotaka Ihara

  DOI：10.1039/a903956b

  日期：——

  were investigated. The L- or D-glutamic acid-derived lipids with glutaric acid headgroups aggregated to form specific hydrophobic cavities which exhibited inclusion ability for the styryl dyes mainly based on the planarity recognition. The formation of such specific hydrophobic cavities can be achieved not only by introducing amide groups capable of complementary hydrogen bondings between neighbouring

  制备了衍生自L-，D-，DL-谷氨酸，L-天冬氨酸，L-赖氨酸，L-鸟氨酸和L -2,4-二氨基丁酸的阴离子脂质，以及与结构相关的溶剂化阳离子苯乙烯基苯乙烯的方法研究了将染料掺入这些脂质聚集体中的方法。的大号-或d具有戊二酸头基的β-谷氨酸衍生的脂质聚集形成特定的疏水腔，其主要基于平面性识别而表现出对苯乙烯基染料的包涵能力。这样的特定疏水腔的形成不仅可以通过在聚集体中引入能够与相邻脂质之间互补的氢键结合的酰胺基，而且可以通过将适当的间隔基亚甲基引入例如戊二酸酯头基来实现。还发现氨基酸残基的侧链亚甲基在特定的疏水腔以及间隔基亚甲基的形成中起重要作用。还为适当设计的L-赖氨酸和L形成了此类腔-鸟氨酸来源的脂质。这些结果表明，特异性掺入不是谷氨酸来源的脂质所特有的，而是来自适当设计的L-氨基酸来源的脂质的聚集体的普遍现象。在组装的方式的差异大号之间谷氨酸残基大号- ， - d -异构体，和DL