ethyl 3-amino-3-(3,5-dimethylphenyl)propanoate | 502842-28-6

• 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: ethyl 3-amino-3-(3,5-dimethylphenyl)propanoate
• CAS: 502842-28-6
• 化学式: C₁₃H₁₉NO₂
• 分子量: 221.299
• InChiKey: HLCCNLBRPAQXEI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.7
• 重原子数：
  16
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.46
• 拓扑面积：
  52.3
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  ethyl 3-amino-3-(3,5-dimethylphenyl)propanoate 在 N-甲基吗啉 、 sodium hydroxide 、 immobilized Pseudomonas cepacia lipase 、 氯甲酸异丁酯 作用下， 以 N,N-二甲基乙酰胺 、 乙腈 为溶剂， 反应 27.25h， 生成 (3R)-3-(3,5-dimethylphenyl)-3-(2-(3-(5-fluoro-1,4,5,6-tetrahydropyrimidin-2-ylamino)-5-hydroxybenzamido)acetamido)propanoic acid
  参考文献：
  名称：

  R-Isomers of Arg-Gly-Asp (RGD) mimics as potent αvβ3 inhibitors

  摘要：

  The integrin alpha(v)beta(3), vitronectin receptor, is expressed in a number of cell types and has been shown to mediate adhesion of osteoclasts to bone matrix, vascular smooth muscle cell migration, and angiogenesis. We recently disclosed the discovery of a tripeptide Arg-Gly-Asp (RGD) mimic, which has been shown to be a potent inhibitor of the integrin alpha(v)beta(3) and has excellent anti-angiogenic properties including its suppression of tumor growth in animal models. In other investigations involving RGD mimics, only compounds containing the S-isomers of the beta-amino acids have been shown to be potent. We were surprised to find the potencies of analogs containing enantiomerically pure S-isomers of beta-amino acids which were only marginally better than the corresponding racemic mixtures. We therefore synthesized RGD mimics containing R-isomers of beta-amino acids and found them to be relatively potent inhibitors of alpha(v)beta(3). One of the compounds was examined in tumor models in mice and has been shown to significantly reduce the rate of growth and the size of tumors. (c) 2007 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2007.03.034
• 作为产物：
  描述：

  3,5-二甲基苯甲醛 在 乙酸铵 、 盐酸 作用下， 以 异丙醇 为溶剂， 生成 ethyl 3-amino-3-(3,5-dimethylphenyl)propanoate
  参考文献：
  名称：

  R-Isomers of Arg-Gly-Asp (RGD) mimics as potent αvβ3 inhibitors

  摘要：

  The integrin alpha(v)beta(3), vitronectin receptor, is expressed in a number of cell types and has been shown to mediate adhesion of osteoclasts to bone matrix, vascular smooth muscle cell migration, and angiogenesis. We recently disclosed the discovery of a tripeptide Arg-Gly-Asp (RGD) mimic, which has been shown to be a potent inhibitor of the integrin alpha(v)beta(3) and has excellent anti-angiogenic properties including its suppression of tumor growth in animal models. In other investigations involving RGD mimics, only compounds containing the S-isomers of the beta-amino acids have been shown to be potent. We were surprised to find the potencies of analogs containing enantiomerically pure S-isomers of beta-amino acids which were only marginally better than the corresponding racemic mixtures. We therefore synthesized RGD mimics containing R-isomers of beta-amino acids and found them to be relatively potent inhibitors of alpha(v)beta(3). One of the compounds was examined in tumor models in mice and has been shown to significantly reduce the rate of growth and the size of tumors. (c) 2007 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2007.03.034

文献信息

• Relative Binding Affinities of Integrin Antagonists by Equilibrium Dialysis and Liquid Chromatography–Mass Spectrometry
  作者：William J. Tipping、Nkazimulo Tshuma、James Adams、Harvey T. Haywood、James E. Rowedder、M. Jonathan Fray、Thomas McInally、Simon J. F. Macdonald、Neil J. Oldham

  DOI：10.1021/ml500395v

  日期：2015.2.12

  The integrin αvβ6 is a potential target for treatment of idiopathic pulmonary fibrosis (IPF). Equilibrium dialysis (ED) was investigated for its ability to report ligand binding in an αvβ6 inhibitor screening assay. As a preliminary experiment, an established peptidomimetic inhibitor of the integrin was dialyzed against αvβ6, and the fraction bound (f b) and percentage saturation determined by liquid chromatography-mass spectrometry (LC-MS) analysis. Quantitation of the inhibitor in the two chambers of the ED cartridge revealed an uneven distribution in the presence of αvβ6, corresponding to near saturation binding to the protein (93 ± 3%), while the control (without integrin) showed an equal partitioning of the inhibitor on either side of the dialysis membrane. A competitive ED assay with a 12 component mixture of antagonists was conducted, and the results compared with an established cell adhesion assay for quantifying αvβ6 inhibition of individual antagonists. Compounds clustered into three groupings: those with pIC 50 values between ca. 5.0 and 5.5, which possessed ED f b values indistinguishable from the controls, those with pIC 50s of 6.5 ± 0.2, which exhibited detectable integrin binding (f b 13-25%) in the ED assay, and a single compound of pIC 50 7.2 possessing an f b value of 38%. A good correlation between ED-derived f b and pIC 50 was observed despite the two assays utilizing quite different outputs. These results demonstrate that ED with LC-MS detection shows promise as a rapid αvβ6 integrin antagonist screening assay for mixtures of putative ligands.