N-((2S,3R,4E)-1,3-dihydroxyoctadec-4-en-2-yl)-2-phenylacetamide | 1294447-01-0

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 鞘脂
• 英文名称: N-((2S,3R,4E)-1,3-dihydroxyoctadec-4-en-2-yl)-2-phenylacetamide
• 英文别名: N-((2S,3R,E)-1,3-dihydroxyoctadec-4-en-2-yl)-2-phenylacetamide；N-[(E,2S,3R)-1,3-dihydroxyoctadec-4-en-2-yl]-2-phenylacetamide
• CAS: 1294447-01-0
• 化学式: C₂₆H₄₃NO₃
• 分子量: 417.632
• InChiKey: XPGBWSODSUSYBE-PNIUMYDHSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.1
• 重原子数：
  30
• 可旋转键数：
  18
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.65
• 拓扑面积：
  69.6
• 氢给体数：
  3
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  D-赤式-鞘氨醇盐酸盐 、 苯乙酰氯 在 碳酸氢钠 作用下， 以 二氯甲烷 为溶剂， 反应 16.08h， 以58%的产率得到N-((2S,3R,4E)-1,3-dihydroxyoctadec-4-en-2-yl)-2-phenylacetamide
  参考文献：
  名称：

  3-Ketone-4,6-diene ceramide analogs exclusively induce apoptosis in chemo-resistant cancer cells

  摘要：

  Multidrug-resistance is a major cause of cancer chemotherapy failure in clinical treatment. Evidence shows that multidrug-resistant cancer cells are as sensitive as corresponding regular cancer cells under the exposure to anticancer ceramide analogs. In this work we designed five new ceramide analogs with different backbones, in order to test the hypothesis that extending the conjugated system in ceramide analogs would lead to an increase of their anticancer activity and selectivity towards resistant cancer cells. The analogs with the 3-ketone-4,6-diene backbone show the highest apoptosis-inducing efficacy. The most potent compound, analog 406, possesses higher pro-apoptotic activity in chemo-resistant cell lines MCF-7TN-R and NCI/ADR-RES than the corresponding chemo-sensitive cell lines MCF-7 and OVCAR-8, respectively. However, this compound shows the same potency in inhibiting the growth of another pair of chemo-sensitive and chemo-resistant cancer cells, MCF-7 and MCF-7/Dox. Mechanism investigations indicate that analog 406 can induce apoptosis in chemo-resistant cancer cells through the mitochondrial pathway. Cellular glucosylceramide synthase assay shows that analog 406 does not interrupt glucosylceramide synthase in chemo-resistant cancer cell NCI/ADR-RES. These findings suggest that due to certain intrinsic properties, ceramide analogs' pro-apoptotic activity is not disrupted by the normal drug-resistance mechanisms, leading to their potential use for overcoming cancer multidrug-resistance. (C) 2014 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2013.12.065

文献信息

• Exploring Leishmania major Inositol Phosphorylceramide Synthase (LmjIPCS): Insights into the ceramide binding domain
  作者：John G. Mina、Jackie A. Mosely、Hayder Z. Ali、Paul W. Denny、Patrick G. Steel

  DOI：10.1039/c0ob00871k

  日期：——

  The synthesis of set of ceramide analogues exploring hydrophobicity in the acyl chains and the degree and nature of hydroxylation is described. These have been assayed against the parasitic protozoan enzymeLmjIPCS. These studies showed that whilst the C-3 hydroxyl group was not essential for turnover it provided enhanced affinity. Reflecting the membrane bound nature of the enzyme a long (C13) hydrocarbon ceramide tail was necessary for both high affinity and turnover. Whilst the N-acyl chain also contributed to affinity, analogues lacking the amide linkage functioned as competitive inhibitors in both enzyme and cell-based assays. A model that accounts for this observation is proposed.

  本文描述了一组神经酰胺类似物的合成，这些类似物探讨了酰基链的疏水性、羟基化的程度和性质。它们已被用于检测寄生原生动物酶LmjIPCS。这些研究表明，尽管C-3羟基团对酶的代谢转化不是必需的，但它提供了增强的亲和力。鉴于该酶的膜结合性质，需要一个长（C13）碳氢神经酰胺尾部以实现高亲和力和代谢转化。虽然N-酰基链也对亲和力有所贡献，但缺乏酰胺键连接的类似物在酶和细胞基础测试中作为竞争性抑制剂发挥了作用。针对这一观察结果，我们提出了一个理论模型。