2-(4-methylphenyl)-1,3-oxazole-4-carboxylic acid | 91137-54-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 2-(4-methylphenyl)-1,3-oxazole-4-carboxylic acid
• 英文别名: 2-p-Tolyl-oxazol-carbonsaeure-(4)；2-p-tolyl-oxazole-4-carboxylic acid
• CAS: 91137-54-1
• 化学式: C₁₁H₉NO₃
• 分子量: 203.197
• InChiKey: GFMWICALGGLYQA-UHFFFAOYSA-N

物化性质

• 熔点：
  225-226 °C
• 沸点：
  398.8±44.0 °C(Predicted)
• 密度：
  1.273±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  15
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.09
• 拓扑面积：
  63.3
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  2-(4-methylphenyl)-1,3-oxazole-4-carboxylic acid 在 吡啶 、 草酰氯 、 dichloro(pentamethylcyclopentadienyl)rhodium (III) dimer 、 盐酸羟胺 、 sodium acetate 、 N,N-二甲基甲酰胺 作用下， 以 四氢呋喃 、 甲醇 、 乙醇 、 二氯甲烷 为溶剂， 反应 25.0h， 生成 4-methyl-6,7-diphenyl-2-(p-tolyl)oxazolo[4,5-c]pyridine
  参考文献：
  名称：

  Rh(iii)-catalyzed cyclization reaction of azoles with alkynes: efficient synthesis of azole-fused-pyridines

  摘要：

  已开发出一种Rh（III）催化的氮杂环与炔烃的环化反应，可在良好至优异的产率下构建杂环并联吡啶。

  DOI：

  10.1039/c5ob01338k
• 作为产物：
  描述：

  对甲苯酰胺 在 sodium hydroxide 作用下， 以 乙醇 、 水 为溶剂， 反应 15.0h， 生成 2-(4-methylphenyl)-1,3-oxazole-4-carboxylic acid
  参考文献：
  名称：

  2，4-二取代恶唑衍生物作为潜在的PDE4抑制剂的设计，合成和生物学评估。

  摘要：

  在这项研究中，以简明的方式设计和合成了一系列含有4-苯基-2-恶唑部分的吡唑衍生物，其中一些对PDE4B表现出相当大的抑制活性，并阻断了LPS诱导的TNF-α释放。化合物4c显示出最强的抑制活性（IC50 = 1.6±0.4μM）和对PDE4B的良好选择性。同时，化合物4c在LPS诱导的哮喘/ COPD和败血症动物模型中显示出良好的体内活性。初步的结构-活性关系研究表明，3,5-二甲基吡唑残基对于生物活性至关重要，苯环上的取代基R1也影响了活性。对接结果表明，化合物4c分别使用酰肼骨架（CONN）和吡唑环在形成完整的氢键和π-π堆积相互作用中起关键作用，与PDE4B蛋白结合。而分子的其余部分扩展到催化域中以阻止cAMP的访问，并形成了抑制PDE4B的基础。基于初步的结构-活性关系和分子模型研究，化合物4c有望作为进一步研究的先导化合物。

  DOI：

  10.1016/j.bmc.2017.01.047

文献信息

• Synthesis and bioactivity of phenyl substituted furan and oxazole carboxylic acid derivatives as potential PDE4 inhibitors
  作者：Yinuo Lin、Wasim Ahmed、Min He、Xuwen Xiang、Riyuan Tang、Zi-Ning Cui

  DOI：10.1016/j.ejmech.2020.112795

  日期：2020.12

  In this present study, a series of 5-phenyl-2-furan and 4-phenyl-2-oxazole derivatives were designed and synthesized as phosphodiesterase type 4 (PDE4) inhibitors. In vitro results showed that the synthesized compounds exhibited considerable inhibitory activity against PDE4B and blockade of LPS-induced TNF-α release. Among the designed compounds, Compound 5j exhibited lower IC50 value (1.4 μM) against

  在本研究中，设计并合成了一系列5-苯基-2-呋喃和4-苯基-2-恶唑衍生物，作为4型磷酸二酯酶（PDE4）抑制剂。体外结果表明，合成的化合物对PDE4B表现出相当大的抑制活性，并阻断LPS诱导的TNF- α释放。在设计的化合物中，化合物5j在体外酶法检测中对PDE4的IC 50值（1.4μM）低于母体咯利普兰（2.0μM），在体内也显示出良好的LPS诱发的哮喘/ COPD和败血症动物模型中的活性降低。对接结果表明，在苯环对位引入甲氧基，表现出与PDE4B的金属结合口袋结构域良好的相互作用，这有助于增强抑制活性。
• Synthesis and Biological Investigation of Oxazole Hydroxamates as Highly Selective Histone Deacetylase 6 (HDAC6) Inhibitors
  作者：Johanna Senger、Jelena Melesina、Martin Marek、Christophe Romier、Ina Oehme、Olaf Witt、Wolfgang Sippl、Manfred Jung

  DOI：10.1021/acs.jmedchem.5b01493

  日期：2016.2.25

  Histone deacetylase 6 (HDAC6) catalyzes the removal of an acetyl group from lysine residues of several nonhistone proteins. Here we report the preparation of thiazole-, oxazole-, and oxadiazole-containing biarylhydroxamic acids by a short synthetic procedure. We identified them as selective HDAC6 inhibitors by investigating the inhibition of B recombinant HDAC enzymes and the protein acetylation in cells by Western blotting (tubulin vs histone acetylation). The most active compounds exhibited nanomolar potency and high selectivity for HDAC6. For example, an oxazole hydroxamate inhibits HDAC6 with an IC50 of 59 nM and has a selectivity index of >200 against HDAC1 and HDAC8. This is the first report showing that the nature of a heterocycle directly connected to a zinc binding group (ZBG) can be used to modulate subtype selectivity and potency for HDAC6 inhibitors to such an extent. We rationalize the high potency and selectivity of the oxazoles by molecular modeling and docking.
• <i>N</i>-((1-Benzyl-1<i>H</i>-1,2,3-triazol-4-yl)methyl)arylamide as a New Scaffold that Provides Rapid Access to Antimicrotubule Agents: Synthesis and Evaluation of Antiproliferative Activity Against Select Cancer Cell Lines
  作者：Jonathan A. Stefely、Rahul Palchaudhuri、Patricia A. Miller、Rebecca J. Peterson、Garrett C. Moraski、Paul J. Hergenrother、Marvin J. Miller

  DOI：10.1021/jm1000979

  日期：2010.4.22

  A series of N-((1-benzyl-1H-1,2,3-triazol-4-yl)methyl)arylamides was synthesized by copper-catalyzed azide alkyne cycloaddition (CuAAC) and afforded inhibitors of cancer cell growth. For example, compound 13e had an IC50 of 46 nM against MCF-7 human breast tumor cells. Structure activity relationship (SA R) studies demonstrated that (i) meta-phenoxy substitution of the N-1-benzyl group is important for antiproliferative activity and (ii) a variety of heterocyclic substitutions for the aryl group of the arylamide are tolerated. In silico COMPARE analysis of antiproliferative activity against the NCI-60 human tumor cell line panel revealed a correlation to clinically useful antimicrotubule agents such as paclitaxel and vincristine. This in silico correlation was supported by (i) in vitro inhibition of tubulin polymerization, (ii) G(2)/M-phase arrest in HeLa cells as assessed by flow cytometry, and (iii) perturbation of normal microtubule activity in HeLa cells as observed by confocal microscopy. The results demonstrate that N-((1-benzyl-1H-1,2,3-triazol-4-yl)methyl)arylamide is a readily accessible small molecule scaffold for compounds that inhibit tubulin polymerization and tumor cell growth.
• Sychewa,T.P. et al., Journal of general chemistry of the USSR, 1962, vol. 32, p. 2839 - 2841
  作者：Sychewa,T.P. et al.

  DOI：——

  日期：——
• [EN] SOLID PHASE SYNTHESIS OF OXA- AND THIAZOLES<br/>[FR] SYNTHESE EN PHASE SOLIDE D'OXA- ET DE THIAZOLES
  申请人：CHEMRX ADVANCED TECHNOLOGIES I

  公开号：WO2001010798A1

  公开（公告）日：2001-02-15

  Thia- and oxazole-4-carboxylic acid derivatives are prepared by solid phase synthesis, using intermediates of formula (α) where SS is a solid support and n is 0 or 1.