3-Ethoxalylbenzothiophen | 41895-76-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并噻吩类
• 英文名称: 3-Ethoxalylbenzothiophen
• 英文别名: 3-Benzothiophen-glyoxylsaeure-aethylester；benzo[b]thiophen-3-yl-oxo-acetic acid ethyl ester；ethyl benzo[b]thiophen-3-yl-oxo-acetate；Ethyl 2-(benzo[b]thiophen-3-yl)-2-oxoacetate；ethyl 2-(1-benzothiophen-3-yl)-2-oxoacetate
• CAS: 41895-76-5
• 化学式: C₁₂H₁₀O₃S
• 分子量: 234.276
• InChiKey: XVPAIEGAQRHOHS-UHFFFAOYSA-N

物化性质

• 沸点：
  367.2±15.0 °C(Predicted)
• 密度：
  1.293±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  16
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.17
• 拓扑面积：
  71.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  3-Ethoxalylbenzothiophen 在 sodium hydroxide 、 甲酸 、 盐酸羟胺 、 sodium acetate 、 锌 作用下， 以 甲醇 、 乙醇 为溶剂， 反应 17.0h， 生成 Sodium; amino-benzo[b]thiophen-3-yl-acetate
  参考文献：
  名称：

  Orally absorbable cephalosporin antibiotics. 1. Structure-activity relationships of benzothienyl- and naphthylglycine derivatives of 7-aminodeacetoxycephalosporanic acid

  摘要：

  A structure-activity relationship study of a number of orally absorbed cephalosporins together with their syntheses is described. These new cephalosporins are benzothienyl- and naphthylglycine derivatives of 7-aminodeacetoxycephalosporanic acid. Several different synthetic methods for the glycine side chains, their protection, and the final acylations are reported. Several of these analogues were more active than cephalexin both in vitro and in vivo against commonly encountered Gram-positive bacteria. (R)-7-(3-Benzothienylglycylamido)-3-methyl-3-cephem-4-carboxylic acid (1R) has emerged as a potent antibacterial agent and is currently undergoing preclinical evaluation.

  DOI：

  10.1021/jm00150a022
• 作为产物：
  描述：

  草酰氯单乙酯 、 苯并噻吩 以 二氯甲烷 为溶剂， 反应 5.0h， 生成 3-Ethoxalylbenzothiophen
  参考文献：
  名称：

  三组分活化/炔基化/环缩合（AACC）合成增强的发射变色3-乙炔基喹喔啉

  摘要：

  可以通过三组分的连续活化-炔基化-环缩合（AACC）一锅法序列轻松合成2-取代的3-乙炔基喹喔啉生色团。与以前发表的从富电子的π-亲核试剂开始的四组分乙醛酸化作用相比，（杂）芳基乙醛酸的直接活化作用允许引入不能被乙醛化作用直接取代的取代基。通过引入N，N由于二甲基苯胺是2-位的强供体，因此3-乙炔基喹喔啉的发射溶剂变色性可以得到显着增强，以单个生色团在相对窄的极性窗口内覆盖从蓝绿色到深红色橙色的光谱范围。合成多组分反应概念的多样性导向性质使得可以通过Hammett相关性和Lippert-Mataga分析对结构-性质关系进行全面研究，并通过DFT阐明发射溶剂化变色π-共轭供体-受体系统的电子结构。具有PBEh1PBE功能的时间依赖性DFT计算可更好地再现最长波长吸收带的主要电荷转移特征。

  DOI：

  10.1002/chem.201800079

文献信息

• Rhodium-catalyzed enantioselective 1,2-addition of arylboronic acids to heteroaryl α-ketoesters for synthesis of heteroaromatic α-hydroxy esters
  作者：Hui Wang、Ting-Shun Zhu、Ming-Hua Xu

  DOI：10.1039/c2ob26316e

  日期：——

  The first example of catalytic asymmetric 1,2-addition of arylboronic acids to heteroaryl α-ketoesters has been developed for the highly efficient and enantioselective synthesis of quaternary carbon-containing heteroaromatic α-hydroxy esters. The reaction works well with a variety of α-ketoesters including 3-indoleglyoxylates, 3-benzofuranglyoxylates and 3-benzothiopheneglyoxylates under very mild conditions, affording the corresponding products in moderate to good yields with high enantiomeric excesses (up to 97%).

  第一例催化不对称1,2-加成芳基硼酸到杂芳类α-酮酯的反应已经被开发，用于高效和选择性合成四次碳含量的杂芳类α-羟基酯。在非常温和的条件下，该反应对多种α-酮酯表现良好，包括3-吲哚乙二酸酯、3-苯并呋喃乙二酸酯和3-苯并噻吩乙二酸酯，产物的收率中等到良好，且具有高的对映体过量（高达97%）。
• TRIAZINE DERIVATIVES, THEIR PREPARATION AND THERAPEUTIC APPLICATION THEREOF
  申请人：BENEDETTI Yannick

  公开号：US20080096891A1

  公开（公告）日：2008-04-24

  The invention relates to triazine derivatives of general formula (I): Wherein R 1 , R 2 and R 3 are as defined herein. The invention also relates to a method for preparing these triazine derivatives and to the therapeutic application thereof.

  该发明涉及一般式（I）的三嗪衍生物：其中R1、R2和R3如本文所定义。该发明还涉及制备这些三嗪衍生物的方法以及它们的治疗应用。
• US7517881B2
  申请人：——

  公开号：US7517881B2

  公开（公告）日：2009-04-14
• Three-Component Activation/Alkynylation/Cyclocondensation (AACC) Synthesis of Enhanced Emission Solvatochromic 3-Ethynylquinoxalines
  作者：Franziska K. Merkt、Simon P. Höwedes、Charlotte F. Gers-Panther、Irina Gruber、Christoph Janiak、Thomas J. J. Müller

  DOI：10.1002/chem.201800079

  日期：2018.6.7

  reaction concept enables comprehensive investigations of structure–property relationships by Hammett correlations and Lippert–Mataga analysis, as well as the elucidation of the electronic structure of the emission solvatochromic π‐conjugated donor–acceptor systems by DFT and time‐dependent DFT calculations with the PBEh1PBE functional for a better reproduction of the dominant charge‐transfer character of

  可以通过三组分的连续活化-炔基化-环缩合（AACC）一锅法序列轻松合成2-取代的3-乙炔基喹喔啉生色团。与以前发表的从富电子的π-亲核试剂开始的四组分乙醛酸化作用相比，（杂）芳基乙醛酸的直接活化作用允许引入不能被乙醛化作用直接取代的取代基。通过引入N，N由于二甲基苯胺是2-位的强供体，因此3-乙炔基喹喔啉的发射溶剂变色性可以得到显着增强，以单个生色团在相对窄的极性窗口内覆盖从蓝绿色到深红色橙色的光谱范围。合成多组分反应概念的多样性导向性质使得可以通过Hammett相关性和Lippert-Mataga分析对结构-性质关系进行全面研究，并通过DFT阐明发射溶剂化变色π-共轭供体-受体系统的电子结构。具有PBEh1PBE功能的时间依赖性DFT计算可更好地再现最长波长吸收带的主要电荷转移特征。
• Orally absorbable cephalosporin antibiotics. 1. Structure-activity relationships of benzothienyl- and naphthylglycine derivatives of 7-aminodeacetoxycephalosporanic acid
  作者：Stjepan Kukolja、Susan E. Draheim、Janice L. Pfeil、Robin D. G. Cooper、Bernard J. Graves、Richard E. Holmes、David A. Neel、George W. Huffman、J. Alan Webber

  DOI：10.1021/jm00150a022

  日期：1985.12

  A structure-activity relationship study of a number of orally absorbed cephalosporins together with their syntheses is described. These new cephalosporins are benzothienyl- and naphthylglycine derivatives of 7-aminodeacetoxycephalosporanic acid. Several different synthetic methods for the glycine side chains, their protection, and the final acylations are reported. Several of these analogues were more active than cephalexin both in vitro and in vivo against commonly encountered Gram-positive bacteria. (R)-7-(3-Benzothienylglycylamido)-3-methyl-3-cephem-4-carboxylic acid (1R) has emerged as a potent antibacterial agent and is currently undergoing preclinical evaluation.