4-(3,4-Difluoroanilino)-4-oxobut-2-enoic acid | 424800-35-1

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 4-(3,4-Difluoroanilino)-4-oxobut-2-enoic acid
• CAS: 424800-35-1
• 化学式: C₁₀H₇F₂NO₃
• 分子量: 227.167
• InChiKey: HNGWFUYQWISQED-UHFFFAOYSA-N

物化性质

• 沸点：
  428.5±45.0 °C(Predicted)
• 密度：
  1.492±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.1
• 重原子数：
  16
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  66.4
• 氢给体数：
  2
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  4-(3,4-Difluoroanilino)-4-oxobut-2-enoic acid 在 吡啶 、 氯化亚砜 、 sodium acetate 作用下， 以 二氯甲烷 、 乙酸酐 为溶剂， 反应 3.75h， 生成 3-chloro-1-(3,4-difluorophenyl)-4-morpholino-1H-pyrrole-2,5-dione
  参考文献：
  名称：

  An Optimized RAD51 Inhibitor That Disrupts Homologous Recombination without Requiring Michael Acceptor Reactivity

  摘要：

  Homologous recombination (HR) is an essential process in cells that provides repair of DNA double-strand breaks and lesions that block DNA replication. RAD51 is an evolutionarily conserved protein that is central to HR. Overexpression of RAD51 protein is common in cancer cells and represents a potential therapeutic target in oncology. We previously described a chemical inhibitor of RAD51, called RI-1 (referred to as compound 1 in this report). The chloromaleimide group of this compound is thought to act as a Michael acceptor and react with the thiol group on C319 of RAD51, using a conjugate addition-elimination mechanism. In order to reduce the likelihood of off-target effects and to improve compound stability in biological systems, we developed an analogue of compound 1 that lacks maleimide-based reactivity but retains RAD51 inhibitory activity. This compound, 1-(3,4-dichlorophenyl)-3-(4-methoxyphenyl)-4-morpholino-1H-pyrrole-2,5-dione, named RI-2 (referred to as compound 7a in this report), appears to bind reversibly to the same site on the RAD51 protein as does compound 1. Like compound 1, compound 7a specifically inhibits HR repair in human cells.

  DOI：

  10.1021/jm301565b
• 作为产物：
  描述：

  马来酸酐 、 3,4-二氟苯胺 以 二氯甲烷 为溶剂， 反应 2.0h， 生成 4-(3,4-Difluoroanilino)-4-oxobut-2-enoic acid
  参考文献：
  名称：

  设计，合成和生物学评估新型3,4-二氢-2（1H）-喹啉酮衍生物作为潜在的几丁质合酶抑制剂和抗真菌剂。

  摘要：

  设计合成了一系列含有丁烯二酰胺片段的3,4-二氢-2（1H）-喹啉酮衍生物。在体外筛选了它们对几丁质合酶的抑制能力和抗菌活性。酶促测定表明，所有合成的化合物在300μg/ mL的浓度下均具有针对甲壳质合酶的抑制能力。化合物2d表现出优异的效能，抑制百分数（IP）值为82.3％，而对照多恶菌素B的IP值为87.5％。IP值高于70％的化合物2b，2e和2s显示出对几丁质合酶的良好抑制能力。此外，2b的IC50值可与多恶英B（0.09 mM）相媲美。化合物2b的Ki为0.12 mM，Lineweaver-Burk图的结果表明2b是与甲壳质合酶结合的非竞争性抑制剂。抗真菌实验表明，这些化合物对真菌菌株，特别是白色念珠菌具有优异的抗真菌活性。化合物2b，2d，2e和2l对白念珠菌的抗真菌活性与氟康唑相当，并且优于多恶灵B。同时，其他化合物对白念珠菌的抗真菌活性也更好（MIC 2μg/ mL ）比化合物2n（MIC

  DOI：

  10.1016/j.ejmech.2020.112278

文献信息

• An Optimized RAD51 Inhibitor That Disrupts Homologous Recombination without Requiring Michael Acceptor Reactivity
  作者：Brian Budke、Jay H. Kalin、Michal Pawlowski、Anna S. Zelivianskaia、Megan Wu、Alan P. Kozikowski、Philip P. Connell

  DOI：10.1021/jm301565b

  日期：2013.1.10

  Homologous recombination (HR) is an essential process in cells that provides repair of DNA double-strand breaks and lesions that block DNA replication. RAD51 is an evolutionarily conserved protein that is central to HR. Overexpression of RAD51 protein is common in cancer cells and represents a potential therapeutic target in oncology. We previously described a chemical inhibitor of RAD51, called RI-1 (referred to as compound 1 in this report). The chloromaleimide group of this compound is thought to act as a Michael acceptor and react with the thiol group on C319 of RAD51, using a conjugate addition-elimination mechanism. In order to reduce the likelihood of off-target effects and to improve compound stability in biological systems, we developed an analogue of compound 1 that lacks maleimide-based reactivity but retains RAD51 inhibitory activity. This compound, 1-(3,4-dichlorophenyl)-3-(4-methoxyphenyl)-4-morpholino-1H-pyrrole-2,5-dione, named RI-2 (referred to as compound 7a in this report), appears to bind reversibly to the same site on the RAD51 protein as does compound 1. Like compound 1, compound 7a specifically inhibits HR repair in human cells.
• Design, synthesis and biological evaluation of novel 3,4-dihydro-2(1H)-quinolinone derivatives as potential chitin synthase inhibitors and antifungal agents
  作者：Baihui Li、Yangli Shen、Hu Wu、Xiaobo Wu、Lvjiang Yuan、Qinggang Ji

  DOI：10.1016/j.ejmech.2020.112278

  日期：2020.6

  A series of 3,4-dihydro-2(1H)-quinolinone derivatives contained butenediamide fragment were designed and synthesized. Their inhibition potency against chitin synthase and antimicrobial activities were screened in vitro. The enzymatic assays showed that all the synthesized compounds had inhibition potency against chitin synthase at concentration of 300 μg/mL. Compound 2d displayed excellent potency

  设计合成了一系列含有丁烯二酰胺片段的3,4-二氢-2（1H）-喹啉酮衍生物。在体外筛选了它们对几丁质合酶的抑制能力和抗菌活性。酶促测定表明，所有合成的化合物在300μg/ mL的浓度下均具有针对甲壳质合酶的抑制能力。化合物2d表现出优异的效能，抑制百分数（IP）值为82.3％，而对照多恶菌素B的IP值为87.5％。IP值高于70％的化合物2b，2e和2s显示出对几丁质合酶的良好抑制能力。此外，2b的IC50值可与多恶英B（0.09 mM）相媲美。化合物2b的Ki为0.12 mM，Lineweaver-Burk图的结果表明2b是与甲壳质合酶结合的非竞争性抑制剂。抗真菌实验表明，这些化合物对真菌菌株，特别是白色念珠菌具有优异的抗真菌活性。化合物2b，2d，2e和2l对白念珠菌的抗真菌活性与氟康唑相当，并且优于多恶灵B。同时，其他化合物对白念珠菌的抗真菌活性也更好（MIC 2μg/ mL ）比化合物2n（MIC