(E)-3-(3-bromo-4-methoxyphenyl)-2-(methoxyimino)-N-(2-(methylthio)ethyl)propanamide | 1268849-12-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 英文名称: (E)-3-(3-bromo-4-methoxyphenyl)-2-(methoxyimino)-N-(2-(methylthio)ethyl)propanamide
• 英文别名: (2E)-3-(3-bromo-4-methoxyphenyl)-2-methoxyimino-N-(2-methylsulfanylethyl)propanamide
• CAS: 1268849-12-2
• 化学式: C₁₄H₁₉BrN₂O₃S
• 分子量: 375.286
• InChiKey: UQTHRYWGELYRQE-SFQUDFHCSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  21
• 可旋转键数：
  8
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.43
• 拓扑面积：
  85.2
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  4-(3-bromo-4-methoxybenzylidene)-2-methyloxazol-5(4H)-one 在 吡啶 、 盐酸 、 水 、 盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 、 三乙胺 作用下， 以 1,4-二氧六环 、 甲醇 为溶剂， 生成 (E)-3-(3-bromo-4-methoxyphenyl)-2-(methoxyimino)-N-(2-(methylthio)ethyl)propanamide
  参考文献：
  名称：

  Defining the Mechanism of Action and Enzymatic Selectivity of Psammaplin A against Its Epigenetic Targets

  摘要：

  Psammaplin A (11c) is a marine metabolite previously reported to be a potent inhibitor of two classes of epigenetic enzymes: histone deacetylases and DNA methyltransferases. The design and synthesis of a focused library based on the psammaplin A core has been carried out to probe the molecular features of this molecule responsible for its activity. By direct in vitro assay of the free thiol generated upon reduction of the dimeric psammaplin scaffold, we have unambiguously demonstrated that 11c functions as a natural prodrug, with the reduced form being highly potent against HDAC1 in vitro (IC50 0.9 nM). Furthermore, we have shown it to have high isoform selectivity, being 360-fold selective for HDAC1 over HDAC6 and more than 1000-fold less potent against HDAC7 and HDAC8. SAR around our focused library revealed a number of features, most notably the oxime functionality to be important to this selectivity. Many of the compounds show significant cytotoxicity in A549, MCF7, and W138 cells, with the SAR of cytotcodcity correlating to HDAC inhibition. Furthermore, compound treatment causes upregulation of histone acetylation but little effect on tubulin acetylation. Finally, we have found no evidence for 11c functioning as a DNMT inhibitor.

  DOI：

  10.1021/jm2016182

文献信息

• New synthetic strategies towards psammaplin A, access to natural product analogues for biological evaluation
  作者：Matthias G. J. Baud、Thomas Leiser、Franz-Josef Meyer-Almes、Matthew J. Fuchter

  DOI：10.1039/c0ob00824a

  日期：——

  New synthetic routes towards the natural product psammaplin A were developed with the particular view to preparing diverse analogues for biological assessment. These routes utilize cheap and commercially available starting materials, and allowed access to psammaplin A analogues not accessible via currently reported methods. Preliminary biological studies revealed these compounds to be the most potent non peptidic inhibitors of the enzyme histone deacetylase 1 (HDAC1, class I) discovered so far. Interestingly, psammaplin A and our synthetic analogues show class I selectivity in vitro, an important feature for the design and synthesis of future isoform selective inhibitors.

  开发了新的合成路线以制备天然产物海绵抑素A（psammaplin A）及其多样化的类似物，这些类似物用于生物学评估。这些路线采用廉价且商业可获得的起始原料，并能合成目前报道方法难以获得的psammaplin A类似物。初步生物学研究表明，这些化合物是目前所发现的最强效的非肽类组蛋白去乙酰化酶1（HDAC1，I类）抑制剂。有趣的是，psammaplin A及其我们的合成类似物在体外显示出I类选择性，这对于设计和合成未来同工型选择性抑制剂具有重要意义。
• Defining the Mechanism of Action and Enzymatic Selectivity of Psammaplin A against Its Epigenetic Targets
  作者：Matthias G. J. Baud、Thomas Leiser、Patricia Haus、Sharon Samlal、Ai Ching Wong、Robert J. Wood、Vanessa Petrucci、Mekala Gunaratnam、Siobhan M. Hughes、Lakjaya Buluwela、Fabrice Turlais、Stephen Neidle、Franz-Josef Meyer-Almes、Andrew J. P. White、Matthew J. Fuchter

  DOI：10.1021/jm2016182

  日期：2012.2.23

  Psammaplin A (11c) is a marine metabolite previously reported to be a potent inhibitor of two classes of epigenetic enzymes: histone deacetylases and DNA methyltransferases. The design and synthesis of a focused library based on the psammaplin A core has been carried out to probe the molecular features of this molecule responsible for its activity. By direct in vitro assay of the free thiol generated upon reduction of the dimeric psammaplin scaffold, we have unambiguously demonstrated that 11c functions as a natural prodrug, with the reduced form being highly potent against HDAC1 in vitro (IC50 0.9 nM). Furthermore, we have shown it to have high isoform selectivity, being 360-fold selective for HDAC1 over HDAC6 and more than 1000-fold less potent against HDAC7 and HDAC8. SAR around our focused library revealed a number of features, most notably the oxime functionality to be important to this selectivity. Many of the compounds show significant cytotoxicity in A549, MCF7, and W138 cells, with the SAR of cytotcodcity correlating to HDAC inhibition. Furthermore, compound treatment causes upregulation of histone acetylation but little effect on tubulin acetylation. Finally, we have found no evidence for 11c functioning as a DNMT inhibitor.