3-oxo-5-tetrahydro[2]furyl-valeric acid ethyl ester | 212482-26-3

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 酮酸及其衍生物
• 英文名称: 3-oxo-5-tetrahydro[2]furyl-valeric acid ethyl ester
• 英文别名: 3-Oxo-5-tetrahydro[2]furyl-valeriansaeure-aethylester；Ethyl 3-oxo-5-(oxolan-2-yl)pentanoate
• CAS: 212482-26-3
• 化学式: C₁₁H₁₈O₄
• 分子量: 214.262
• InChiKey: XGATZHULFSGCAC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1
• 重原子数：
  15
• 可旋转键数：
  7
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.82
• 拓扑面积：
  52.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  3-oxo-5-tetrahydro[2]furyl-valeric acid ethyl ester 在 sodium hydroxide 、 sodium methylate 作用下， 以 甲醇 为溶剂， 生成 3-(2,6-Dichloro-phenyl)-5-[2-(tetrahydro-furan-2-yl)-ethyl]-isoxazole-4-carboxylic acid
  参考文献：
  名称：

  Novel isoxazole carboxamides as growth hormone secretagogue receptor (GHS-R) antagonists

  摘要：

  Novel isoxazole carboxamides have been identified as growth hormone secretagogue receptor (GHS-R) antagonists. Substituent modification off the 5-position of the isoxazole ring led to analogues with potent binding affinity and functional antagonism of GHS-R. A potent analogue (32) with high aqueous solubility and good GPCR selectivity was also identified as a potential pharmacological tool for in vivo studies. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2004.06.060
• 作为产物：
  描述：

  alkaline earth salt of/the/ methylsulfuric acid 在 乙醚 、 sodium amide 作用下， 生成 3-oxo-5-tetrahydro[2]furyl-valeric acid ethyl ester
  参考文献：
  名称：

  除虫菊酯的研究 一些β-酮酯的合成

  摘要：

  报道了使用这些试剂以 1:3:3 的摩尔比从甲基酮、钠酰胺和碳酸二乙酯制备 β-酮酯的新方法。β-酮酯的产率接近于使用氢化钠作为缩合剂制备的产率。此外，一些环戊烯醇酮是由通过该程序合成的 β-酮酯制备的。

  DOI：

  10.1246/bcsj.26.194

文献信息

• Isoxazole carboxamide derivatives as ghrelin receptor modulators
  申请人：Liu Gang

  公开号：US20060089398A1

  公开（公告）日：2006-04-27

  The present invention is related to compounds of formula (I), or a therapeutically suitable salt or prodrug thereof, the preparation of the compounds, compositions containing the compounds and the use of the compounds in the prevention or treatment of disorders regulated by ghrelin including anorexia, cancer cachexia, eating disorders, age-related decline in body composition, weight gain, obesity, and diabetes mellitus.

  本发明涉及式(I)的化合物，或其在治疗上适用的盐或前药，该化合物的制备，含有该化合物的组合物以及在预防或治疗由胃饥素调节的疾病中使用该化合物，包括厌食症、癌症恶病质、进食障碍、与年龄相关的身体组成下降、体重增加、肥胖和糖尿病。
• Pyrrolidine-3-carboxylic Acids as Endothelin Antagonists. 3. Discovery of a Potent, 2-Nonaryl, Highly Selective ET_A Antagonist (A-216546)
  作者：Gang Liu、Kenneth J. Henry,、Bruce G. Szczepankiewicz、Martin Winn、Natasha S. Kozmina、Steven A. Boyd、James Wasicak、Thomas W. von Geldern、Jinshyun R. Wu-Wong、William J. Chiou、Douglas B. Dixon、Bach Nguyen、Kennan C. Marsh、Terry J. Opgenorth

  DOI：10.1021/jm980217s

  日期：1998.8.1

  was replaced by an n-pentyl group, the resultant antagonist 3 exhibited substantially increased ETB/ETA activity ratio, but a decreased ETA affinity. Structure-activity studies revealed that substitution and geometry of this alkyl group, and substitution on the benzodioxolyl ring, are important in optimizing this series of highly ETA selective antagonists. In particular, the combination of a (E)-2,2-dimethyl-3-pentenyl

  以前，我们已经报道了ABT-627（1，A-147627，A-127722的活性对映体）的发现，这是一种基于2，4-二芳基取代的吡咯烷-3-羧酸的内皮素受体A拮抗剂。该化合物以0. 034 nM的亲和力（Ki）结合ETA受体，并且对ETA受体的选择性是ETB受体的2000倍。为了进一步提高ETA选择性，我们在本系列文章中扩展了结构活性研究。当1的对-茴香基基团被正戊基基团取代时，所得拮抗剂3表现出显着提高的ETB / ETA活性比，但降低的ETA亲和力。结构活性研究表明，该烷基的取代和几何形状以及在苯并二氧戊环上的取代对于优化这一系列高度ETA选择性拮抗剂很重要。特别地，（E）-2，2-二甲基-3-戊烯基和7-甲氧基-1，3-苯并二恶唑-5-基的组合提供了对人ETA受体亚型具有亚纳摩尔亲和力的疏水化合物10b。 ETB / ETA活性比超过130000。同时，在合成烯烃化合物的过程中，发现
• Novel isoxazole carboxamides as growth hormone secretagogue receptor (GHS-R) antagonists
  作者：Bo Liu、Gang Liu、Zhili Xin、Micheal D. Serby、Hongyu Zhao、Verlyn G. Schaefer、H. Douglas Falls、Wiweka Kaszubska、Christine A. Collins、Hing L. Sham

  DOI：10.1016/j.bmcl.2004.06.060

  日期：2004.10

  Novel isoxazole carboxamides have been identified as growth hormone secretagogue receptor (GHS-R) antagonists. Substituent modification off the 5-position of the isoxazole ring led to analogues with potent binding affinity and functional antagonism of GHS-R. A potent analogue (32) with high aqueous solubility and good GPCR selectivity was also identified as a potential pharmacological tool for in vivo studies. (C) 2004 Elsevier Ltd. All rights reserved.
• Studies on Pyrethrins The Synthesis of Some β-Keto Esters
  作者：Masanao Matsui、Tokuji Yamaguchi、Takeaki Kato、Giichi Funazo

  DOI：10.1246/bcsj.26.194

  日期：1953.4

  from methyl ketones, sodamide and diethyl carbonate using these reagents in the molar ratio of 1:3:3 is reported. The yields of β-keto esters approach to those of the preparation using sodium hydride as condensing agent. Furthermore, some cyclopentenolones were prepared from the β-keto esters synthesized by this-procedure.

  报道了使用这些试剂以 1:3:3 的摩尔比从甲基酮、钠酰胺和碳酸二乙酯制备 β-酮酯的新方法。β-酮酯的产率接近于使用氢化钠作为缩合剂制备的产率。此外，一些环戊烯醇酮是由通过该程序合成的 β-酮酯制备的。