dihexadecylmalonic acid | 4471-14-1

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: dihexadecylmalonic acid
• 英文别名: Bis-hexadecyl-malonsaeure；Dihexadecyl-malonsaeure；2,2-Dihexadecylpropanedioic acid
• CAS: 4471-14-1
• 化学式: C₃₅H₆₈O₄
• 分子量: 552.923
• InChiKey: CMMJFNRRYIRABI-UHFFFAOYSA-N

物化性质

• 熔点：
  87 °C(Solv: ethyl acetate (141-78-6))
• 沸点：
  650.7±38.0 °C(Predicted)
• 密度：
  0.928±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  16.3
• 重原子数：
  39
• 可旋转键数：
  32
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.94
• 拓扑面积：
  74.6
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  dihexadecylmalonic acid 生成 2-十六烷基十八烷酸
  参考文献：
  名称：

  Schulte et al., Hoppe-Seyler's Zeitschrift fur Physiologische Chemie, 1951, vol. 288, p. 69,71

  摘要：

  DOI：
• 作为产物：
  描述：

  十六烷基丙二酸二乙酯 在 sodium hydride 、 sodium hydroxide 作用下， 以 5,5-dimethyl-1,3-cyclohexadiene 、 乙醇 为溶剂， 反应 10.0h， 生成 dihexadecylmalonic acid
  参考文献：
  名称：

  Tris(2-aminoethyl)amine-based α-branched fatty acid amides – Synthesis of lipids and comparative study of transfection efficiency of their lipid formulations

  摘要：

  The synthesis of a new class of cationic lipids, tris(2-aminoethyl)amine-based alpha-branched fatty acid amides, is described resulting in a series of lipids with specific variations in the lipophilic as well as the hydrophilic part of the lipids. In-vitro structure/transfection relationships were established by application of complexes of these lipids with plasmid DNA (pDNA) to different cell lines. The a-branched fatty acid amide bearing two tetradecyl chains and two lysine molecules (T14diLys) in mixture with the co-lipid 1,2-di-[(9Z)-octadec-9-enoyl]-sn-glycero-3-phosphoethanolamine (DOPE) (1/2, n/n) exhibits effective pDNA transfer in three different cell lines, namely Hep-G2, A549, and COS-7. The presence of 10% serum during lipoplex incubation of the cells did not affect the transfection efficiency. Based on that, detailed investigations of the complexation of pDNA with the lipid formulation T14diLys/DOPE 1/2 (n/n) were carried out with respect to particle size and charge using dynamic light scattering (DLS), C-potential measurements, and transmission electron microscopy (TEM). Additionally, the lipoplex uptake was investigated by confocal laser scanning microscopy (CLSM). Overall, lipoplexes prepared from T14diLys/DOPE 1/2 (n/n) offer large potential as lipid-based polynucleotide carriers and further justify advanced examinations. (C) 2015 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.ejpb.2015.08.011

文献信息

• Amine Exchange in Formamidines: An Experimental and Theoretical Study
  作者：Marinha dF. Capela、Nicholas J. Mosey、Liyan Xing、Ruiyao Wang、Anne Petitjean

  DOI：10.1002/chem.201002389

  日期：2011.4.11

  simultaneous proton‐induced electrophilicity enhancement that allows for the exchange of their amine portion. The NC(H)NH fragment, therefore, undergoes “imine‐like” exchange with N‐containing nucleophiles. Because of the prototropic equilibrium, the NC(H)NH fragment may behave as a “bisimine” centred on the same carbon, in which both N‐containing fragments can be exchanged. Considering the proton‐induced

  Ñ  -含有H甲脒结合相当强关联为羧酸，以形成良好限定的几何形状的络合物以同时质子诱导的亲电性的增强，其允许它们的胺部分的交换。所述NC（H） NH片段，因此，经过“亚胺样”与含N亲核试剂交换。由于质子的平衡，所述NC（H） NH片段可以表现为“双亚胺”为中心在相同的碳，其中两个含N片段可以被交换。同时考虑C的质子诱导致敏N单元和明确定义的甲am-羧酸配合物几何形状，应该可以使用羧酸作为模板，通过甲form内的动态胺交换来合成确定的结构。这项研究重点介绍了基于进料胺（脂肪族胺，芳香族胺和烷氧基胺）性质的三种交换方式，以及基于胺离去基团的交换规则。经过该分析，提供了通过动态交换形成羧酸模板化大环化合物的概念证明。
• Langmuir-blodgett film aggregates
  申请人：K & V LICENCING OY

  公开号：EP0284314A1

  公开（公告）日：1988-09-28

  A multilayered Langmuir-Blodgett film aggregate, which contains on top of a solid support surface several mo­nomolecular layers of a compound of liquid crystal type preferably having the general formula wherein Rʹ and Rʺ independently refer to a substantial­ly aliphatic hydrocarbon group of approximately 8 to 30 carbon atoms, Yʹ and Yʺ independently refer to the group -O-, -C(=O)-O-, which over the oxygen atom is bound to the group -(CH₂)n- or they refer to -CH₂-, nʹ and nʺ independently are zero or 1, R¹-X-H is a polar group wherein XH refers to hydroxy (OH), carboxyl (COOH), amino (NH₂), or an amino group substituted with a substantially aliphatic hydrocarbon group of not more than 30 carbon atoms, and R¹ is a direct bond, a carbonyl group -C(=O)-, lower alkylene or lower alkylene carboxyl lower alkylene, R² is hydrogen, lower alkyl or lower alko­xycarbonyl or has the meaning of R¹-X-H, or the meaning of Rʹ-Yʹ-(CH₂)nʹ-, provided that the compound (I) does not contain more than three lipophilic groups as defined.

  一种多层朗缪尔-布洛杰特薄膜聚合体，它在固体支撑表面上含有若干液晶类型化合物的单分子层，这些化合物最好具有通式 其中 Rʹ 和 Rʺ 独立地指大约 8 至 30 个碳原子的基本脂肪烃基，Yʹ 和 Yʺ 独立地指基团 -O-、-C(=O)-O-、R¹-X-H是极性基团，其中XH指羟基（OH）、羧基（COOH）、氨基（NH₂）、R¹是直接键、羰基-C(=O)-、低级亚烷基或低级亚烷基羧基低级亚烷基、R² 是氢、低级烷基或低级烷氧羰基，或具有 R¹-X-H 的含义，或具有 Rʹ-Yʹ-(CH₂)nʹ- 的含义，条件是化合物(I)不包含三个以上所定义的亲脂基团。
• DERIVATIVE OF GLYCOLIPID CONTAINING SIALIC ACID
  申请人：DRUG DELIVERY SYSTEM INSTITUTE, LTD.

  公开号：EP0489162A1

  公开（公告）日：1992-06-10

  A derivative of a glycolipid containing a sialic acid of general formula (I), a process for the production thereof, and a particulate carrier containing the derivative as the constituent. In formula (I), the symbol represents either an α or β linkage; R¹ represents hydrogen or acetyl; R² represents hydrogen, C₁ to C₄ lower alkyl or alkali metal ion; X represents oxygen, sulfur, or a residue represented by the following formula (II) or (III): -O(CH₂)mNHCO- (II), wherein m is an integer of 1 to 10, -O(CH₂)mCONH-  (III) and Y represents a group of formula (IV); wherein A represents a C₁₀ to C₄₀ linear or branched acylamino or the like, B represents hydrogen, carboxyl or a group of formula (V), and n and n' are each an integer of 0 to 3.

  一种含有通式(I)硅烷基酸的糖脂衍生物、其生产工艺以及一种以该衍生物为成分的微粒载体。在式(I)中，符号代表α或β连接；R¹代表氢或乙酰基；R²代表氢、C₁至C₄低级烷基或碱金属离子；X代表氧、硫或由下式(II)或(III)代表的残基：-O(CH₂)mNHCO-(II)，其中 m 为 1-10 的整数，-O(CH₂)mCONH-(III) 和 Y 代表式(IV)的基团；其中 A 代表 C₁₀ 至 C₄₀ 直链或支链酰氨基或类似物，B 代表氢、羧基或式 (V) 基团，n 和 n' 各为 0 至 3 的整数。
• Production of acylglycerol esters
  申请人：Universiti Putra Malaysia

  公开号：EP2253222A1

  公开（公告）日：2010-11-24

  The present invention relates to the production of oil and fat containing acylglycerol esters including diacylglycerols, medium-chain and long-chain fatty acid triacylglycerols comprising esterification reaction between an acyl group donor and an acyl gourp acceptor in the presence of a heterogenous chemical catalyst consisting of an ion-exchange resin preparation to obtain a reaction fluid that is further subjected to dehydration and at least one separation method, thus producing diacylglycerols and/or medium-chain and long-chain fatty acid triacylglycerols at a high yield in a short period of time.

  本发明涉及含酰基甘油酯（包括二酰甘油、中链和长链脂肪酸三酰甘油）的油脂生产，包括酰基供体和酰基甘油受体在由离子交换树脂制剂组成的异源化学催化剂存在下进行酯化反应，以获得反应液，反应液再经脱水和至少一种分离方法处理、从而在短时间内以高产率生产出二酰甘油和/或中链和长链脂肪酸三酰甘油。
• low caloric fat replacers
  申请人：Nestec S.A.

  公开号：EP2332427A1

  公开（公告）日：2011-06-15

  The present invention relates in general to field of food and drinks. In particular, in relates to formulations that mimic the taste of fat but that are lower in calories. One embodiment of the present invention relates to the use of at least one non-fat agonist of GPR40 for imparting a fatty taste to a food product.

  本发明总体上涉及食品和饮料领域。特别是，本发明涉及模仿脂肪味道但热量较低的配方。本发明的一个实施方案涉及使用至少一种 GPR40 的非脂肪激动剂来赋予食品脂肪味。