2,5-噻吩二羧酸乙酯 | 156910-49-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 噻吩类
• 中文名称: 2,5-噻吩二羧酸乙酯
• 中文别名: 5-(乙氧羰基)噻吩-2-羧酸；5-乙氧羰基-2-噻吩甲酸
• 英文名称: 5-carbethoxythiophene-2-carboxylic acid
• 英文别名: thiophene-2,5-dicarboxylic acid monoethyl ester；Thiophen-2,5-dicarbonsaeure-monoaethylester；5-Carboethoxythiophen-2-carboxylic acid；5-(Ethoxycarbonyl)thiophene-2-carboxylic acid；5-ethoxycarbonylthiophene-2-carboxylic acid
• CAS: 156910-49-5
• 化学式: C₈H₈O₄S
• mdl: MFCD09750017
• 分子量: 200.215
• InChiKey: ZHVNYGKUJXZNOA-UHFFFAOYSA-N

物化性质

• 熔点：
  140-142 °C
• 沸点：
  370.9±27.0 °C(Predicted)
• 密度：
  1.372±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2
• 重原子数：
  13
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  91.8
• 氢给体数：
  1
• 氢受体数：
  5

安全信息

• 海关编码：
  2934999090

反应信息

• 作为反应物：
  描述：

  2,5-噻吩二羧酸乙酯 在 三氯化铝 、 草酰氯 、 N,N-二甲基甲酰胺 作用下， 以 二氯甲烷 、 1,2-二氯乙烷 为溶剂， 反应 16.0h， 生成 ethyl 5-<(5,6,7,8-tetrahydro-3,5,5,8,8-pentamethyl-2-naphthalenyl)carbonyl>thiophene-2-carboxylate
  参考文献：
  名称：

  Conformational Effects on Retinoid Receptor Selectivity. 2. Effects of Retinoid Bridging Group on Retinoid X Receptor Activity and Selectivity

  摘要：

  The natural retinoid 9-cis-retinoic acid is an activating ligand for both the retinoic acid receptors (RARs) and the retinoid X receptors (RXRs), which are members of the retinoid/thyroid hormone/steroid hormone family of nuclear receptor proteins that activate gene transcription through specific response elements. The pharmacophoric groups necessary to confer RXR selectivity were established by evaluating the ability of 21 conformationally restricted retinoids to activate, the TREpal retinoic acid receptor response element for gene transcription in the presence of one of the three RAR subtypes or RXR alpha. In contrast to those retinoids selective for the RARs, these RXR-selective retinoids have one less atom in the bridge linking the hydrophobic and carboxylic acid termini of the retinoid skeleton. Therefore, a one-carbon bridge replaces the 19-methyl group and SE-double bond of S-cis-retinoic acid and is further functionalized by inclusion in an isopropylidene group, a dioxolane ring, or a cyclopropane ring for optimal RXR alpha activity and selectivity. In addition, the beta-geranylidene and 20-methyl-(11E,13E)-dienoic acid groups of g-cis-retinoic acid are replaced by a 5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2 naphthalenyl ring and a 4-carboxylphenyl ring, respectively, for optimal activation and selectivity. RXR alpha; selectivity is reduced on replacement of the 4-carboxylphenyl group by a 2-carboxyl-5-thienyl group or the S-cis-retinoic acid methylpentadienoic acid terminus.

  DOI：

  10.1021/jm00017a021
• 作为产物：
  描述：

  diethyl thiophene-2,5-dicarboxylate 在 氢氧化钾 作用下， 生成 2,5-噻吩二羧酸乙酯
  参考文献：
  名称：

  Foye et al., Journal of the American Pharmaceutical Association (1912), 1952, vol. 41, p. 273,275

  摘要：

  DOI：

文献信息

• Synthesis and biological evaluation of oxoindolin-3-ylidene ethyl benzothiohydrazides as non-peptide TPO mimics
  作者：Peng Cho Tang、He Jun Lu、Yi Qian Chen、Sheng Lan Wang、Hao Zheng、Li Wang

  DOI：10.1016/j.bmcl.2010.07.040

  日期：2010.9

  A novel series of oxoindolin-3-ylidene ethyl benzohydrazides were designed, synthesized, and identified as small molecule agonists of thrombopoietin (TPO) receptor c-mpl. Sulfur–oxygen exchange in oxoindolin-3-ylidene ethyl benzohydrazides was found to improve their agonistic activities. Several oxoindolin-3-ylidene ethyl benzothiohydrazides have been identified as full agonists of c-mpl.

  设计，合成和鉴定了一系列新的氧代吲哚-3-亚乙基乙基苯甲酰肼，作为血小板生成素（TPO）受体c-mpl的小分子激动剂。发现氧代吲哚-3-亚乙基乙基苯甲酰肼中的硫-氧交换改善了它们的激动活性。几种氧代吲哚-3-亚乙基乙基苯并硫酰肼已被鉴定为c-mpl的完全激动剂。
• Bridged bicyclic aromatic compounds and their use in modulating gene
  申请人：SRI International

  公开号：US05466861A1

  公开（公告）日：1995-11-14

  Bridged bicyclic aromatic compounds are provided having the structure ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and n are as defined herein. The novel compounds are useful for modulating gene expression of retinoic acid receptors, vitamin D receptors and thyroid receptors. Pharmaceutical compositions and methods for modulating gene expression are provided as well.

  提供具有以下结构的桥接双环芳香化合物：##STR1##其中R.sup.1、R.sup.2、R.sup.3、R.sup.4、R.sup.5和n的定义如本文所述。这些新颖化合物可用于调节视黄酸受体、维生素D受体和甲状腺受体的基因表达。同时还提供了用于调节基因表达的药物组合物和方法。
• Pyrazolopyrimidine compound and a process for preparing the same
  申请人：Takamuro Iwao

  公开号：US20060135525A1

  公开（公告）日：2006-06-22

  The present invention provides a novel pyrazolopyrimidine compound of the formula [I]: wherein R′ is (A) a substituted aryl group, (B) an optionally substituted nitrogen-containing aliphatic heteromonocyclic group, (C) a substituted cyclo-lower alkyl group, (D) an optionally substituted amino group, or (E) a substituted heteroaryl group, R 2 is (a) an optionally substituted heteroaryl group or (b) an optionally substituted aryl group, Y is a single bond, a lower alkylene group or a lower alkenylene group, Z is a group of the formula: —CO—, —CH2-, S02- or a group of the formula [II]: Q is a lower alkylene group, and q is an integer of 0 or 1 or a pharmaceutically acceptable sait thereof, which has a small conductance potassium channel (SK channel) blocking activity and is useful as a medicament and a process for preparing the same.

  本发明提供了一种新型的吡唑嘧啶化合物，其化学式为[I]：其中R′为（A）取代芳基，（B）可选取代的含氮脂肪杂环基，（C）取代的环低烷基，（D）可选取代的氨基或（E）取代的杂环芳基；R2为（a）可选取代的杂环芳基或（b）可选取代的芳基；Y为单键，低碳基烷基或低碳基烯基；Z为式[II]的基团：其中Q为低碳基烷基，q为0或1的整数，或其药学上可接受的盐。该化合物具有小电导钾通道（SK通道）阻滞活性，并可作为药物使用，以及其制备方法。
• Process for preparing polyolefins
  申请人：Nippon Petrochemicals Co., Ltd.

  公开号：EP0267794A2

  公开（公告）日：1988-05-18

  A process for preparing a polyolefin by homopolymerizing or copolymerizing an olefin or olefins using a catalyst comprising a solid catalyst component and an organometallic compound, said solid catalyst component being obtained by contacting at least a titanium compound and/or a vanadium compound with a solid material (a), said solid material (a) being obtained by contacting the following components (1), (2) and (3) with one another: (1) a silicon oxide and/or an aluminum oxide, (2) a magnesium halide, and (3) an organometallic compound.

  一种使用由固体催化剂组分和有机金属化合物组成的催化剂，通过均聚或共聚一种或多种烯烃制备聚烯烃的工艺，所述固体催化剂组分通过将至少一种钛化合物和/或钒化合物与固体材料（a）接触而获得，所述固体材料（a）通过将以下组分（1）、（2）和（3）相互接触而获得：（1）氧化硅和/或氧化铝，（2）卤化镁，和（3）有机金属化合物。
• RXR HOMODIMER FORMATION AND BRIDGED BICYCLIC AROMATIC COMPOUNDS AND THEIR USE IN MODULATING GENE EXPRESSION
  申请人：LA JOLLA CANCER RESEARCH FOUNDATION

  公开号：EP0671005A1

  公开（公告）日：1995-09-13