[2-(2-{2-[2-(2-Chlorocarbonylmethoxy-ethoxy)-ethoxy]-ethoxy}-ethoxy)-ethoxy]-acetyl chloride | 608513-16-2

• 分子结构分类: 有机化合物 - 有机卤素化合物 - 酰卤
• 英文名称: [2-(2-{2-[2-(2-Chlorocarbonylmethoxy-ethoxy)-ethoxy]-ethoxy}-ethoxy)-ethoxy]-acetyl chloride
• 英文别名: 2-[2-[2-[2-[2-[2-(2-Chloro-2-oxoethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]acetyl chloride
• CAS: 608513-16-2
• 化学式: C₁₄H₂₄Cl₂O₈
• 分子量: 391.246
• InChiKey: QCEZNEQJHDMDSE-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.5
• 重原子数：
  24
• 可旋转键数：
  19
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.86
• 拓扑面积：
  89.5
• 氢给体数：
  0
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  N-羟基丁二酰亚胺 、 [2-(2-{2-[2-(2-Chlorocarbonylmethoxy-ethoxy)-ethoxy]-ethoxy}-ethoxy)-ethoxy]-acetyl chloride 在 吡啶 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 2.0h， 生成 {2-[2-(2-{2-[2-(2,5-Dioxo-pyrrolidin-1-yloxycarbonylmethoxy)-ethoxy]-ethoxy}-ethoxy)-ethoxy]-ethoxy}-acetic acid 2,5-dioxo-pyrrolidin-1-yl ester
  参考文献：
  名称：

  Ligand Recognition by E- and P-Selectin:  Chemoenzymatic Synthesis and Inhibitory Activity of Bivalent Sialyl Lewis x Derivatives and Sialyl Lewis x Carboxylic Acids

  摘要：

  Described is the preparation of five sLe(x) dimers and five sLe(x) carboxylic acids by coupling chemoenzymatically synthesized amino-substituted sialyl Lewis x (sLe(x)) derivative 4 to homobifunctional cross-linkers 20-24 of varying chain length. 20-24 were obtained by alkylating low-molecular-weight oligoethylene glycols with tert-butyl bromoacetate and subsequent transformation of the di-tert-butyl esters into disuccinimide esters. The products were assayed for inhibition against binding of a sLe(a)-polymer to immobilized E- and P-selectin. In the E-selectin assay all dimers had lower IC50 values than the sLex monomer. The results show that comparable binding enhancements can be obtained with linkers of completely different length and rigidity. In the P-selectin assay four of the five sLe(x) carboxylic acids displayed significantly improved inhibitory potency. The lowest IC50 value was observed for the compound with the shortest spacer between the sLex moiety and the additional carboxylate, being ca. 20-40 times more potent than unmodified sLex. These findings should be of importance for the design of new multivalent forms of sLe(x) as well as sLe(x) mimetics as high-affinity selectin ligands.

  DOI：

  10.1021/jo980350s
• 作为产物：
  描述：

  羟丙基淀粉磷酸酯 在 sodium hydroxide 、 草酰氯 、 四丁基硫酸氢铵 、 N,N-二甲基甲酰胺 、 三氟乙酸 作用下， 以 二氯甲烷 、 甲苯 为溶剂， 反应 3.17h， 生成 [2-(2-{2-[2-(2-Chlorocarbonylmethoxy-ethoxy)-ethoxy]-ethoxy}-ethoxy)-ethoxy]-acetyl chloride
  参考文献：
  名称：

  Ligand Recognition by E- and P-Selectin:  Chemoenzymatic Synthesis and Inhibitory Activity of Bivalent Sialyl Lewis x Derivatives and Sialyl Lewis x Carboxylic Acids

  摘要：

  Described is the preparation of five sLe(x) dimers and five sLe(x) carboxylic acids by coupling chemoenzymatically synthesized amino-substituted sialyl Lewis x (sLe(x)) derivative 4 to homobifunctional cross-linkers 20-24 of varying chain length. 20-24 were obtained by alkylating low-molecular-weight oligoethylene glycols with tert-butyl bromoacetate and subsequent transformation of the di-tert-butyl esters into disuccinimide esters. The products were assayed for inhibition against binding of a sLe(a)-polymer to immobilized E- and P-selectin. In the E-selectin assay all dimers had lower IC50 values than the sLex monomer. The results show that comparable binding enhancements can be obtained with linkers of completely different length and rigidity. In the P-selectin assay four of the five sLe(x) carboxylic acids displayed significantly improved inhibitory potency. The lowest IC50 value was observed for the compound with the shortest spacer between the sLex moiety and the additional carboxylate, being ca. 20-40 times more potent than unmodified sLex. These findings should be of importance for the design of new multivalent forms of sLe(x) as well as sLe(x) mimetics as high-affinity selectin ligands.

  DOI：

  10.1021/jo980350s

文献信息

• New Bivalent PKC Ligands Linked by a Carbon Spacer:  Enhancement in Binding Affinity
  作者：Jayalakshmi Sridhar、Zhi-Liang Wei、Ireneusz Nowak、Nancy E. Lewin、Jolene A. Ayres、Larry V. Pearce、Peter M. Blumberg、Alan P. Kozikowski

  DOI：10.1021/jm0302041

  日期：2003.9.1

  Protein kinase C (PKC) is known to play an important role in many signal transduction pathways involved in hormone release, mitogenesis, and tumor promotion. In continuation of our efforts to find highly potent activators of PKC for possible use as Alzheimer's disease therapeutics, we designed and synthesized molecules containing two binding moieties (amides of benzolactams or esters of naphthylpyrrolidones) connected by a flexible spacer chain, which could theoretically bind to both the C1a and C1b activator binding domains of the catalytic region or to the C1 domains of two adjacent PKC molecules. The dimers 2a- g of benzolactam showed a 200-fold increase in affinity to PKCalpha and -delta as the spacer length increased from 4 to 20 carbon atoms. Replacement of the oligomethylene chain with an oligoethylene glycol unit (compounds 2h, 2i) showed a 4000- to 7000-fold decrease in affinity to PKCalpha. The dimers of naphthylpyrrolidones 4a-g did not show any marked improvement in binding affinities to PKC in comparison to the monomers synthesized earlier. The dimer of benzolactam. 2e did not show much selectivity for PKCalpha, -betaI, -delta, -epsilon, and -gamma. The high binding affinity of compounds 2d-g to PKCs gives us the impetus to design additional molecules that would retain this enhanced activity and would also show selectivity for the PKC isoforms.