2-(RS)-(2-aminobenzoylamino)-4-methylsulfanylbutyric acid ethyl ester | 296282-27-4

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: 2-(RS)-(2-aminobenzoylamino)-4-methylsulfanylbutyric acid ethyl ester
• CAS: 296282-27-4
• 化学式: C₁₄H₂₀N₂O₃S
• 分子量: 296.39
• InChiKey: KKWLHTUSOSJEGS-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.68
• 重原子数：
  20.0
• 可旋转键数：
  7.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.43
• 拓扑面积：
  81.42
• 氢给体数：
  2.0
• 氢受体数：
  5.0

反应信息

• 作为反应物：
  描述：

  2-(RS)-(2-aminobenzoylamino)-4-methylsulfanylbutyric acid ethyl ester 在 氢氧化钾 、 溶剂黄146 、 三乙胺 、 锌 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 反应 7.0h， 生成 2-[2-(2-Amino-benzoylamino)-benzoylamino]-4-methylsulfanyl-butyric acid
  参考文献：
  名称：

  C-terminal anthranoyl–anthranilic acid derivatives and their evaluation on CCK receptors

  摘要：

  A series of C-terminal anthranoyl-anthranilic acid derivatives arising from a strict bond disconnection approach of asperlicin were synthesized and examined for their CCK receptor affinities. These compounds represent the second step of our investigation directed toward the search for alternative substructures of asperlicin as a starting point for the development of a new class of CCK ligands. The obtained micromolar affinities for CCK-A rather than CCK-B receptor confirm that the anthranilic acid dimer represents a useful template for the development of selective CCK-A receptor ligands. (C) 2000 Elsevier Science S.A. All rights reserved.

  DOI：

  10.1016/s0014-827x(00)00043-4
• 作为产物：
  描述：

  靛红酸酐 、 DL-蛋氨酸乙酯盐酸盐 在 三乙胺 作用下， 以 乙酸乙酯 为溶剂， 反应 2.0h， 以70%的产率得到2-(RS)-(2-aminobenzoylamino)-4-methylsulfanylbutyric acid ethyl ester
  参考文献：
  名称：

  C-terminal anthranoyl–anthranilic acid derivatives and their evaluation on CCK receptors

  摘要：

  A series of C-terminal anthranoyl-anthranilic acid derivatives arising from a strict bond disconnection approach of asperlicin were synthesized and examined for their CCK receptor affinities. These compounds represent the second step of our investigation directed toward the search for alternative substructures of asperlicin as a starting point for the development of a new class of CCK ligands. The obtained micromolar affinities for CCK-A rather than CCK-B receptor confirm that the anthranilic acid dimer represents a useful template for the development of selective CCK-A receptor ligands. (C) 2000 Elsevier Science S.A. All rights reserved.

  DOI：

  10.1016/s0014-827x(00)00043-4

文献信息

• Anthranilic acid based CCK1 receptor antagonists: Blocking the receptor with the same ‘words’ of the endogenous ligand
  作者：Lucia Lassiani、Michela V. Pavan、Federico Berti、George Kokotos、Theodoros Markidis、Laura Mennuni、Francesco Makovec、Antonio Varnavas

  DOI：10.1016/j.bmc.2009.02.012

  日期：2009.3

  The anthranilic acid diamides represent the more recent class of nonpeptide CCK1 receptor antagonists. This class is characterized by the presence of anthranilic acid, used as a molecular scaffold, and two pharmacophores selected from the C-terminal tetrapeptide of CCK. The lead compound coded VL-0395, endowed with sub-micromolar affinity towards CCK1 receptors, was characterized by the presence of Phe and 2-indole moiety at the C- and N-termini of anthranilic acid, respectively. Herein we describe the first step of the anthranilic acid C- terminal optimization using, instead of Phe, aminoacids belonging to the primary structure of CCK-8 and other not coded residues. Thus we demonstrate that the CCK1 receptor affinity depends on the nature of the aminoacidic side chain as well as that the free carboxy group of the alpha-aminoacids is crucial for the binding. The R enantiomers of the most active compounds represent the eutomers of this class of antagonists confirming thus the stereo preference of the receptor. Moreover this SAR study demonstrates that the receptor binding pocket, that host the aminoacidic side chain, results much more tolerant respect to that accommodating the indole ring. As a result, an appropriate variation of the aminoacidic side chain could provide a better CCK1 receptor affinity diorthosis. (C) 2009 Elsevier Ltd. All rights reserved.