2-氨基-4,5-二苯基噻吩-3-羧酸乙酯 | 4815-43-4

• 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-氨基-4,5-二苯基噻吩-3-羧酸乙酯
• 英文名称: 2-amino-4,5-diphenyl-thiophene-3-carboxylic acid ethyl ester
• 英文别名: 2-Amino-3-aethoxycarbonyl-4,5-diphenyl-thiophen；Ethyl 2-amino-4,5-diphenylthiophene-3-carboxylate
• CAS: 4815-43-4
• 化学式: C₁₉H₁₇NO₂S
• 分子量: 323.415
• InChiKey: KZDXAPZNXDJJMB-UHFFFAOYSA-N

物化性质

• 熔点：
  154 °C
• 沸点：
  461.6±45.0 °C(Predicted)
• 密度：
  1?+-.0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  5.3
• 重原子数：
  23
• 可旋转键数：
  5
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.11
• 拓扑面积：
  80.6
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  2-氨基-4,5-二苯基噻吩-3-羧酸乙酯 在 吡啶 、 sodium hydroxide 、 四氯化锡 作用下， 以 乙醇 、 1,2-二氯乙烷 为溶剂， 反应 49.0h， 生成 N-(3-benzoyl-4,5-diphenylthiophen-2-yl)acetamide
  参考文献：
  名称：

  2-Amino-3-benzoylthiophene Allosteric Enhancers of A₁ Adenosine Agonist Binding:  New 3, 4-, and 5-Modifications

  摘要：

  2-Amino-3-aroylthiophenes are agonist allosteric enhancers (AE) at the A, adenosine receptor (A(1)AR). Here we report the syntheses of three kinds of novel 2-aminothiophenes and assays of their AE activity at the human A(1)AR (hA(1)AR), namely, (1) 2-amino-4,5-diphenylthiophene-3-carboxylates, 3a-h, (2) 2-amino-3-benzoyl-4,5-diphenylthiophenes, 7a-p, and (3) 2-amino-5-bromo-3-benzoyl-4-phenylthiophenes, 10a-h. An in vitro assay employing the A(1)AR agonist [I-125]ABA and membranes from CHO-K1 cells stably expressing the hA(1)AR measured an index of AE activity, the ability of a candidate AE to stabilize the agonist-A(1)AR-G protein ternary complex, scored as the percentage of ternary complex remaining after 10 min of dissociation initiated by CPX and GTPgammaS. The AE activity score of 2-amino-4,5-dimethyl-3-(3-trifluoromethylbenzoyl)thiophene (PD 81,723), which was 19%, served as a standard for comparison. Two 3-carboxythiophene 3-trifluoromethylbenzyl esters, 3d (49%) and 3f (63%), had substantial AE activity. The 3-(1-naphthoyl) substituent of 7e (52%) also supported AE activity. Compounds in series 3 tended to be more potent, 10a and 10c having scores of 91 and 80%, respectively. The activity of 2-amino-5-bromo-3-ethoxycarbonyl-4-(3-nitrophenyl)thiophene, 10h (26%), is an exception to the rule that a 3-ethoxycarbonyl substituent cannot support AE activity.

  DOI：

  10.1021/jm020295m
• 作为产物：
  描述：

  2-cyano-3,4-diphenyl-crotonic acid ethyl ester 在 sulfur 、 二乙胺 作用下， 以 四氢呋喃 为溶剂， 反应 1.0h， 生成 2-氨基-4,5-二苯基噻吩-3-羧酸乙酯
  参考文献：
  名称：

  2-Amino-3-benzoylthiophene Allosteric Enhancers of A₁ Adenosine Agonist Binding:  New 3, 4-, and 5-Modifications

  摘要：

  2-Amino-3-aroylthiophenes are agonist allosteric enhancers (AE) at the A, adenosine receptor (A(1)AR). Here we report the syntheses of three kinds of novel 2-aminothiophenes and assays of their AE activity at the human A(1)AR (hA(1)AR), namely, (1) 2-amino-4,5-diphenylthiophene-3-carboxylates, 3a-h, (2) 2-amino-3-benzoyl-4,5-diphenylthiophenes, 7a-p, and (3) 2-amino-5-bromo-3-benzoyl-4-phenylthiophenes, 10a-h. An in vitro assay employing the A(1)AR agonist [I-125]ABA and membranes from CHO-K1 cells stably expressing the hA(1)AR measured an index of AE activity, the ability of a candidate AE to stabilize the agonist-A(1)AR-G protein ternary complex, scored as the percentage of ternary complex remaining after 10 min of dissociation initiated by CPX and GTPgammaS. The AE activity score of 2-amino-4,5-dimethyl-3-(3-trifluoromethylbenzoyl)thiophene (PD 81,723), which was 19%, served as a standard for comparison. Two 3-carboxythiophene 3-trifluoromethylbenzyl esters, 3d (49%) and 3f (63%), had substantial AE activity. The 3-(1-naphthoyl) substituent of 7e (52%) also supported AE activity. Compounds in series 3 tended to be more potent, 10a and 10c having scores of 91 and 80%, respectively. The activity of 2-amino-5-bromo-3-ethoxycarbonyl-4-(3-nitrophenyl)thiophene, 10h (26%), is an exception to the rule that a 3-ethoxycarbonyl substituent cannot support AE activity.

  DOI：

  10.1021/jm020295m

文献信息

• Substituted 2-Aminothiopen-derivatives: A potential new class of GluR6-Antagonists
  作者：D. Briel、A. Rybak、C. Kronbach、K. Unverferth

  DOI：10.1016/j.ejmech.2009.09.025

  日期：2010.1

  In the course of search for new therapeutic agents against epilepsy new inhibitors for the kainate receptor subtypes GluR5 and GluR6 were synthesized.We were able to synthesize new substituted thieno[2,3-d]pyrimidines 3a,b, 4a,b, Sa,b as well as thiophene-3-carboxamides 2a-d and a multitude of substituted 4-methyl-5-phenylthiophene-3-carboxylic acids.All compounds described herein were tested for their antagonistic effect towards the kainate receptor subtypes GluR5 and GluR6. The highest activity was observed for ethyl 2-amino-4-methyl-5-phenylthiophene-3-carboxylate 1c with an IC50 = 0.75 mu M at the GluR6 receptor. (C) 2009 Elsevier Masson SAS. All rights reserved.
• 2-Amino-3-benzoylthiophene Allosteric Enhancers of A₁ Adenosine Agonist Binding:  New 3, 4-, and 5-Modifications
  作者：Henning Lütjens、Andrea Zickgraf、Heidi Figler、Joel Linden、Ray A. Olsson、Peter J. Scammells

  DOI：10.1021/jm020295m

  日期：2003.5.1

  2-Amino-3-aroylthiophenes are agonist allosteric enhancers (AE) at the A, adenosine receptor (A(1)AR). Here we report the syntheses of three kinds of novel 2-aminothiophenes and assays of their AE activity at the human A(1)AR (hA(1)AR), namely, (1) 2-amino-4,5-diphenylthiophene-3-carboxylates, 3a-h, (2) 2-amino-3-benzoyl-4,5-diphenylthiophenes, 7a-p, and (3) 2-amino-5-bromo-3-benzoyl-4-phenylthiophenes, 10a-h. An in vitro assay employing the A(1)AR agonist [I-125]ABA and membranes from CHO-K1 cells stably expressing the hA(1)AR measured an index of AE activity, the ability of a candidate AE to stabilize the agonist-A(1)AR-G protein ternary complex, scored as the percentage of ternary complex remaining after 10 min of dissociation initiated by CPX and GTPgammaS. The AE activity score of 2-amino-4,5-dimethyl-3-(3-trifluoromethylbenzoyl)thiophene (PD 81,723), which was 19%, served as a standard for comparison. Two 3-carboxythiophene 3-trifluoromethylbenzyl esters, 3d (49%) and 3f (63%), had substantial AE activity. The 3-(1-naphthoyl) substituent of 7e (52%) also supported AE activity. Compounds in series 3 tended to be more potent, 10a and 10c having scores of 91 and 80%, respectively. The activity of 2-amino-5-bromo-3-ethoxycarbonyl-4-(3-nitrophenyl)thiophene, 10h (26%), is an exception to the rule that a 3-ethoxycarbonyl substituent cannot support AE activity.