4,6-二甲基-2H-吡喃-2-硫酮 | 54657-87-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 杂芳族化合物
• 中文名称: 4,6-二甲基-2H-吡喃-2-硫酮
• 英文名称: 4,6-dimethyl-2H-pyran-2-thione
• 英文别名: 4,6-Dimethylpyran-2-thione
• CAS: 54657-87-3
• 化学式: C₇H₈OS
• mdl: MFCD00965296
• 分子量: 140.206
• InChiKey: UVEBORRSBMVTQQ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.7
• 重原子数：
  9
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.285
• 拓扑面积：
  41.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  4,6-二甲基-2H-吡喃-2-硫酮 在 吡啶 、 盐酸羟胺 作用下， 反应 12.0h， 生成 甲吡司
  参考文献：
  名称：

  抑制癌症相关突变异柠檬酸脱氢酶：合成、结构-活性关系和选择性抗肿瘤活性

  摘要：

  异柠檬酸脱氢酶 1 (IDH1) 的突变常见于某些癌症，例如神经胶质瘤。与野生型 (WT) IDH1 不同，突变酶催化 α-酮戊二酸还原为d -2-羟基戊二酸 (D2HG)，从而引发癌症。几种 1-hydroxypyridin-2-one 化合物被鉴定为 IDH1(R132H) 的抑制剂。共合成了 61 种衍生物，并研究了它们的构效关系。用K i鉴定了有效的 IDH1(R132H) 抑制剂值低至 140 nM，而它们对 WT IDH1 具有弱活性或无活性。发现所选化合物对 IDH1(R132C) 的活性与其对 IDH1(R132H) 的抑制活性以及 D2HG 的细胞产生相关，R 2分别为 0.83 和 0.73。在基于细胞的模型测定中发现几种抑制剂可渗透血脑屏障，并对具有IDH1 R132H 突变的神经胶质瘤细胞表现出有效的选择性活性（EC 50 = 0.26–1.8 μM）。

  DOI：

  10.1021/jm500660f
• 作为产物：
  描述：

  3-甲基-2-丁烯酸乙酯 在 aluminum (III) chloride 、 tetraphosphorus decasulfide 、 硫酸 、 溶剂黄146 作用下， 以 二氯甲烷 、 苯 为溶剂， 生成 4,6-二甲基-2H-吡喃-2-硫酮
  参考文献：
  名称：

  抑制癌症相关突变异柠檬酸脱氢酶：合成、结构-活性关系和选择性抗肿瘤活性

  摘要：

  异柠檬酸脱氢酶 1 (IDH1) 的突变常见于某些癌症，例如神经胶质瘤。与野生型 (WT) IDH1 不同，突变酶催化 α-酮戊二酸还原为d -2-羟基戊二酸 (D2HG)，从而引发癌症。几种 1-hydroxypyridin-2-one 化合物被鉴定为 IDH1(R132H) 的抑制剂。共合成了 61 种衍生物，并研究了它们的构效关系。用K i鉴定了有效的 IDH1(R132H) 抑制剂值低至 140 nM，而它们对 WT IDH1 具有弱活性或无活性。发现所选化合物对 IDH1(R132C) 的活性与其对 IDH1(R132H) 的抑制活性以及 D2HG 的细胞产生相关，R 2分别为 0.83 和 0.73。在基于细胞的模型测定中发现几种抑制剂可渗透血脑屏障，并对具有IDH1 R132H 突变的神经胶质瘤细胞表现出有效的选择性活性（EC 50 = 0.26–1.8 μM）。

  DOI：

  10.1021/jm500660f

文献信息

• Cycloaddition of 2H-Pyran-2-thiones with Nitroso Derivatives. An Unexpected Cycloaddition-Rearrangement Reaction
  作者：Albert Defoin、G�rard Augelmann、Hans Fritz、Guillaume Geffroy、Christian Schmidlin、Jacques Streith

  DOI：10.1002/hlca.19850680724

  日期：1985.11.13

  Reaction of pyran-2-thiones 4 with nitroso derivatives led surprisingly to type-8 (19) adducts which proved to be isomeric with the initially expected primary Diels-Alder cycloadducts 5. Methyl 2-thioxo-2H-pyran-5-carboxylate (4f), when reacted with nitrosobenzene at -10°, led quantitatively to the thieto-oxazine intermediate 13, which turned out to be the cornerstone of the complex cycloaddition-rearrangement

  吡喃-2-硫酮的反应4与导致令人惊奇的亚硝基衍生物型- 8（19被证明是同分异构体与最初的预期主要）加合物狄尔斯-阿尔德cycloadducts 5。当在-10°下与亚硝基苯反应时，2-thioxo-2 H -pyran-5-羧酸甲酯（4f）定量地导致硫代恶嗪中间体13转化为复杂的环加成重排5 的基石。8个反应途径（方案3）。差示扫描量热法，与18a 19a相同转化，被允许证明该多步重排总体上是高温放热过程，最终产物19代表沿着该反应路径的能量吸收器。
• New chemotypes acting as isozyme-selective carbonic anhydrase inhibitors with low affinity for the offtarget cytosolic isoform II
  作者：Fabrizio Carta、Daniela Vullo、Alfonso Maresca、Andrea Scozzafava、Claudiu T. Supuran

  DOI：10.1016/j.bmcl.2012.01.129

  日期：2012.3

  Considering phenols and coumarins as lead molecules for obtaining non-sulfonamide inhibitors of carbonic anhydrases (CAs, EC 4.2.1.1), we screened a large number of compounds possessing diverse chemotypes, but structural features which resemble the two chemical classes. Here we report an investigation of such derivatives which do not significantly inhibit CA II, but show interesting inhibition profiles against other isozymes. Pyridine-N-oxide-2-thiophenol, thiobenzoic acid, thimerosal, two oximes derived from a six-membered-ring lactone and from coumarin; 2-hydroxyquinoline and coumaphos, were investigated as inhibitors of CA I-XIV. All these compounds did not inhibit CA II, whereas the two oximes and 2-hydroxyquinoline were low nanomolar inhibitors of CA I, IX, XII, XIII and XIV, showing a very different inhibition profile compared to sulfonamides and sulfamates. Some other compounds showed low micromolar inhibition of other isoforms of interest, such as CA VA/VB, CA VI and VII. This study demonstrates that a rather wide range of structures show low nanomolar-micromolar inhibitory activity against many CA isozymes, without inhibiting significantly the offtarget isoform CA II. (C) 2012 Elsevier Ltd. All rights reserved.
• 5- and 6-Membered (thio)lactones are prodrug type carbonic anhydrase inhibitors
  作者：Fabrizio Carta、Alfonso Maresca、Andrea Scozzafava、Claudiu T. Supuran

  DOI：10.1016/j.bmcl.2011.11.018

  日期：2012.1

  The inhibition of the zinc enzyme carbonic anhydrase (CA, EC 4.2.1.1) with (thio) coumarins has been recently reported (Maresca et al., J. Am. Chem. Soc. 2009, 131, 3057). Here we demonstrate that a series of gamma- and delta-(thio) lactones also act as mechanism based, prodrug type CA inhibitors, similar to the (thio) coumarins. Through the esterase activity of CA, these compounds are hydrolyzed in situ to the corresponding hydroxy/keto/mercapto acids which thereafter act as inhibitors. CA isoforms I and IX were efficiently inhibited by simple such compounds, with KIs in the range of 0.92-19.1 mu M, whereas CA II was not inhibited at all. Isoform-selective CA inhibitors which spare the ubiquitous off-target CA II may have interesting applications for example for selectively inhibiting the tumor-associated CA IX, a validated anticancer target. (C) 2011 Elsevier Ltd. All rights reserved.
• DEFOIN, A.;AUGEIMANN, G.;FRITZ, H.;GEFFROY, G.;SCHMIDLIN, C.;STREITH, J., HELV. CHIM. ACTA, 1985, 68, N 7, 1998-2014
  作者：DEFOIN, A.、AUGEIMANN, G.、FRITZ, H.、GEFFROY, G.、SCHMIDLIN, C.、STREITH, J.

  DOI：——

  日期：——
• Controllable Cycloadditions between 2<i>H</i>-(Thio)pyran-2-(thi)ones and Strained Alkynes: A Click-and-Release Strategy for COS/H₂S Generation
  作者：Qi Cui、Tony W. Pan、Meg Shieh、Shane S. Kelly、Shi Xu、Wei-Jun Qian、Ming Xian

  DOI：10.1021/acs.orglett.2c02819

  日期：2022.10.14

表征谱图