(E)-2-(hydroxyimino)-3-(4-hydroxyphenyl)-N-(2-mercaptoethyl)propanamide | 1356930-03-4

• 分子结构分类: 有机化合物 - 苯类化合物 - 酚类
• 英文名称: (E)-2-(hydroxyimino)-3-(4-hydroxyphenyl)-N-(2-mercaptoethyl)propanamide
• 英文别名: (2E)-2-hydroxyimino-3-(4-hydroxyphenyl)-N-(2-sulfanylethyl)propanamide
• CAS: 1356930-03-4
• 化学式: C₁₁H₁₄N₂O₃S
• 分子量: 254.31
• InChiKey: MDTFVABOGIOJNL-JLHYYAGUSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  17
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.27
• 拓扑面积：
  82.9
• 氢给体数：
  4
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  (E)-2-(hydroxyimino)-3-(4-hydroxyphenyl)-N-(2-mercaptoethyl)propanamide 以 氘代丙酮 为溶剂， 反应 2160.0h， 以100%的产率得到(2E,2′E)-N,N’-(disulfanediylbis(ethane-2,1-diyl))bis(2-(hydroxyimino)-3-(4-hydroxyphenyl)propanamide)
  参考文献：
  名称：

  海洋天然产物psammaplin A的荧光类似物：合成和生物活性†

  摘要：

  来自海洋海绵Pseudoceratina sp。的对称二硫化物psammaplinA 。通过用荧光的4-香豆素乙酰基部分取代α-（羟基亚氨基）酰基单元之一来合成和结构改变。因此，获得了psammaplin A的第一个荧光类似物。结构变化也涵盖了苯环的取代模式。psammaplin A对小鼠成纤维细胞L-929细胞株的细胞毒性（IC 50 0.42μgmL -1）比荧光杂化化合物高约两倍，而含有两个4-香豆素乙酰基的二硫键则没有活性。荧光显微镜检查显示4-香豆素乙酰基-α-（羟基亚氨基）酰基杂化物被吸收到细胞质中，导致核包膜附近发生荧光，这很可能是在高尔基体中发生的。我们没有在细胞核内观察到强烈的荧光，大多数目标组蛋白脱乙酰基酶都位于细胞核内。我们得出的结论是二硫化物的还原可能发生在核外。psammaplin衍生的硫醇在低纳摩尔范围内表现出强大的抗组蛋白脱乙酰基酶活性，但细胞毒性却降低了。还确定了新衍生物的抗菌活性。

  DOI：

  10.1039/c2ob25909e
• 作为产物：
  描述：

  4-羟苯基丙酮酸 在 吡啶 、 盐酸 、 三(2-羰基乙基)磷盐酸盐 、 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 、 二氯甲烷 、 水 、 二甲基亚砜 为溶剂， 反应 2.0h， 生成 (E)-2-(hydroxyimino)-3-(4-hydroxyphenyl)-N-(2-mercaptoethyl)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

• 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.
• Fluorescent analogs of the marine natural product psammaplin A: synthesis and biological activity
  作者：Fabia Hentschel、Florenz Sasse、Thomas Lindel

  DOI：10.1039/c2ob25909e

  日期：——

  The symmetrical disulfide psammaplin A from the marine sponge Pseudoceratina sp. was synthesized and structurally altered by replacement of one of the α-(hydroxyimino)acyl units by a fluorescent 4-coumarinacetyl moiety. Thus, the first fluorescent analogs of psammaplin A were obtained. Structural variation also covered the substitution pattern of the phenyl ring. Cytotoxicity of psammaplin A against

  来自海洋海绵Pseudoceratina sp。的对称二硫化物psammaplinA 。通过用荧光的4-香豆素乙酰基部分取代α-（羟基亚氨基）酰基单元之一来合成和结构改变。因此，获得了psammaplin A的第一个荧光类似物。结构变化也涵盖了苯环的取代模式。psammaplin A对小鼠成纤维细胞L-929细胞株的细胞毒性（IC 50 0.42μgmL -1）比荧光杂化化合物高约两倍，而含有两个4-香豆素乙酰基的二硫键则没有活性。荧光显微镜检查显示4-香豆素乙酰基-α-（羟基亚氨基）酰基杂化物被吸收到细胞质中，导致核包膜附近发生荧光，这很可能是在高尔基体中发生的。我们没有在细胞核内观察到强烈的荧光，大多数目标组蛋白脱乙酰基酶都位于细胞核内。我们得出的结论是二硫化物的还原可能发生在核外。psammaplin衍生的硫醇在低纳摩尔范围内表现出强大的抗组蛋白脱乙酰基酶活性，但细胞毒性却降低了。还确定了新衍生物的抗菌活性。