(1R,2R)-2-(1-trityl-1H-imidazol-4-yl)cyclopropanecarbaldehyde | 250672-66-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 三苯基化合物
• 英文名称: (1R,2R)-2-(1-trityl-1H-imidazol-4-yl)cyclopropanecarbaldehyde
• 英文别名: (1R,2R)-2-formyl-1-(1-triphenylmethyl-1H-imidazol-4-yl)cyclopropane；(1R,2R)-2-(1-tritylimidazol-4-yl)cyclopropane-1-carbaldehyde
• CAS: 250672-66-3
• 化学式: C₂₆H₂₂N₂O
• 分子量: 378.473
• InChiKey: GOZJXLWEWJEBCW-GBXCKJPGSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.5
• 重原子数：
  29
• 可旋转键数：
  6
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.15
• 拓扑面积：
  34.9
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (1R,2R)-2-(1-trityl-1H-imidazol-4-yl)cyclopropanecarbaldehyde 以77的产率得到[(1R,2R)-2-(1-Trityl-1H-imidazol-4-yl)-cyclopropyl]-methanol
  参考文献：
  名称：

  J. Med. Chem. 1999, 42, 903-909

  摘要：

  DOI：
• 作为产物：
  描述：

  butyl 2-(1-(triphenylmethyl)imidazol-4-yl)cyclopropanecarboxylate 在 lithium aluminium tetrahydride 、 草酰氯 、 二甲基亚砜 、 三乙胺 作用下， 以 四氢呋喃 为溶剂， 反应 2.0h， 生成 (1R,2R)-2-(1-trityl-1H-imidazol-4-yl)cyclopropanecarbaldehyde
  参考文献：
  名称：

  Design, Synthesis, and Structure−Activity Relationships of Acetylene-Based Histamine H₃ Receptor Antagonists

  摘要：

  New, potent, and selective histamine H-3 receptor antagonists have been synthesized by employing the use of (1) an appropriately positioned nonpolar acetylene spacer group, (2) either a two-carbon straight chain linker or a conformationally restricting trans-cyclopropane ring between the C-4 position of an imidazole headgroup and the acetylene spacer, and (3) a Topliss operational scheme for side-chain substitution for optimizing the hydrophobic domain. Compounds 9-18 are examples synthesized with the two-carbon straight chain linker, whereas 26-31 are analogues prepared by incorporation of the trans-(+/-)-cyclopropane at the C-4 position of an imidazole headgroup. Synthesis of both the (1R,2R)- and (1S,2S)-cyclopropyl enantiomers of the most potent racemic compound 31 (K-i = 0.33 +/- 0.13 nM) demonstrated a stereopreference in H-3 receptor binding affinity for the (1R,2R) enantiomer 32 (K-i = 0.18 +/- 0.04 nM) versus the (1S,2S) enantiomer 33 (K-i = 5.3 +/- 0.5 nM). (1R,2R)-4-(2-(5,5-Dimethylhex-1-ynyl)cyclopropyl)- imidazole (32) is one of the most potent histamine H-3 receptor antagonists reported to date.

  DOI：

  10.1021/jm980310g

文献信息

• Development of Versatile <i>cis</i>- and <i>trans</i>-Dicarbon-Substituted Chiral Cyclopropane Units:  Synthesis of (1<i>S</i>,2<i>R</i>)- and (1<i>R</i>,2<i>R</i>)-2-Aminomethyl-1-(1<i>H</i>-imidazol-4-yl)cyclopropanes and Their Enantiomers as Conformationally Restricted Analogues of Histamine
  作者：Yuji Kazuta、Akira Matsuda、Satoshi Shuto

  DOI：10.1021/jo010852x

  日期：2002.3.1

  conformations. We designed (1S,2R)- and (1R,2R)-2-aminomethyl-1-(1H-imidazol-4-yl)cyclopropanes (1 and 2, respectively) and their enantiomers (ent-1 and ent-2) as conformationally restricted analogues of histamine. The four types of chiral cyclopropanes bearing two differentially functionalized carbon substituents in a cis or trans relationship on a cyclopropane ring, (1S,2R)-2-(tert-butyldiphenylsil

  环丙烷环可有效地用于限制生物活性化合物的构象以提高活性并研究生物活性构象。我们设计了（1S，2R）-和（1R，2R）-2-氨基甲基-1-（1H-咪唑-4-基）环丙烷（分别为1和2）及其对映异构体（ent-1和ent-2）作为组胺的构象受限类似物。四种类型的手性环丙烷在环丙烷环上带有两个不同官能化的碳取代基，它们具有顺式或反式关系，（1S，2R）-2-（叔丁基二苯基甲硅烷氧基）甲基-1-甲酰基环丙烷（7）和（1R，2R）开发了-2-（叔丁基二苯基甲硅烷氧基）甲基-1-甲酰基环丙烷（8）及其对映异构体（ent-7和ent-8）作为合成1、2，ent-1和ent-2的关键中间体。（R）-表氯醇[（R）-12]和苯磺酰基乙腈（13a）在NaOEt存在下于EtOH中的反应，然后用酸处理，以82％的收率得到了98％ee的手性环丙烷内酯11a。通过以Mg / MeOH为关键步骤的还原性脱磺酰化作用，将化
• Cyclopropane-Based Conformational Restriction of Histamine. (1<i>S</i>,2<i>S</i>)-2-(2-Aminoethyl)-1-(1<i>H</i>-imidazol-4-yl)cyclopropane, a Highly Selective Agonist for the Histamine H₃ Receptor, Having a <i>cis</i>-Cyclopropane Structure
  作者：Yuji Kazuta、Kazufumi Hirano、Kentaro Natsume、Shizuo Yamada、Ryohei Kimura、Shun-ichiro Matsumoto、Kiyoshi Furuichi、Akira Matsuda、Satoshi Shuto

  DOI：10.1021/jm020415q

  日期：2003.5.1

  cyclopropane units, (1S,2R)- and (1R,2R)-2-(tert-butyldiphenylsilyloxy)methyl-1-formylcyclopropane (14 and 15, respectively) or their enantiomers ent-14 and ent-15. Among the conformationally restricted analogues, the "folded" analogue 13 (AEIC) having the cis-cyclopropane structure was identified as a potent H(3) receptor agonist, which showed a significant binding affinity (K(i) = 1.31 +/- 0.16 nM) and had

  组胺的一系列基于环丙烷的构象受限类似物，即“折叠的”顺式类似物，即（1S，2R）-2-（氨基甲基）-1-（1H-咪唑-4-基）环丙烷（11）， （1S，2S）-2-（2-氨基乙基）-1-（1H-咪唑-4-基）环丙烷（13）及其对映异构体ent-11和ent-13，以及“扩展的”反式类似物，即，将（1R，2R）-2-（氨基甲基）-1-（1H-咪唑-4-基）环丙烷（12）及其对映体ent-12设计为组胺H（3）受体激动剂。这些目标化合物是由通用的手性环丙烷单元（1S，2R）-和（1R，2R）-2-（叔丁基二苯基甲硅烷氧基）甲基-1-甲酰基环丙烷（分别为14和15）或其对映体ent-14合成的和ent-15。在受构象限制的类似物中，“折叠的” 具有顺式环丙烷结构的类似物13（AEIC）被确定为有效的H（3）受体激动剂，它显示出显着的结合亲和力（K（i）= 1.31 +/- 0.16 nM），并具有激动作用（EC（
• Stereochemical Diversity-Oriented Conformational Restriction Strategy. Development of Potent Histamine H₃ and/or H₄ Receptor Antagonists with an Imidazolylcyclopropane Structure
  作者：Mizuki Watanabe、Yuji Kazuta、Hideki Hayashi、Shizuo Yamada、Akira Matsuda、Satoshi Shuto

  DOI：10.1021/jm0603318

  日期：2006.9.1

  potent H3 and H4 receptor antagonists, a series of conformationally restricted analogues of histamine with a chiral cis- or trans-cyclopropane structure were designed on the basis of this strategy. These target compounds with stereochemical diversity were synthesized from the versatile chiral cyclopropane units (1S,2R)- and (1R,2R)-2-(tert-butyldiphenylsilyloxy)methyl-1-formylcyclopropane (6 and 7, respectively)

  面向立体化学多样性的构象限制策略可以是开发药物靶蛋白特异性配体的有效方法，尤其是在既不知道生物活性构象也不知道药效基团的情况下。为了开发有效的H3和H4受体拮抗剂，在该策略的基础上设计了一系列具有手性顺式或反式环丙烷结构的组胺构象受限的类似物。这些具有立体化学多样性的目标化合物是由通用的手性环丙烷单元（1S，2R）-和（1R，2R）-2-（叔丁基二苯基甲硅烷氧基）甲基-1-甲酰基环丙烷（分别为6和7）或其对映异构体合成的-6和ent-7。这些构象受限的类似物的药理学谱显示根据环丙烷骨架的不同而不同。在类似物中，具有（1R）-反式-环丙烷结构的（1R，2S）-2- [2-（4-氯苄氨基）乙基] -1-（1H-咪唑-4-基）环丙烷（11a）具有显着性。对H3（Ki = 8.4 nM）和H4（Ki = 7.6 nM）受体的拮抗活性。具有（1S）-反式-环丙烷结构的11a对映体（即ent-11a）
• An Efficient Multigram Synthesis of the Potent Histamine H₃ Antagonist GT-2331 and the Reassessment of the Absolute Configuration
  作者：Huaqing Liu、Francis A. Kerdesky、Lawrence A. Black、Michael Fitzgerald、Rodger Henry、Timothy A. Esbenshade、Arthur A. Hancock、Youssef L. Bennani

  DOI：10.1021/jo035264t

  日期：2004.1.1

  GT-2331 is a potent histamine H3 antagonist which has entered clinical trials. Efficient multigram syntheses of this compound and its enantiomer are described. The literature reports that GT-2331 is the dextrorotatory (+), more potent, enantiomer of 4-[2-(5,5-dimethylhex-1-ynyl)cyclopropyl]-1H-imidazole with the absolute configuration of (1R,2R)-1. However, we found that the dextrorotatory, more potent

  GT-2331是一种有效的组胺H 3拮抗剂，已进入临床试验。描述了该化合物及其对映异构体的有效数克合成。文献报道GT-2331是4- [2-（5,5-二甲基己基-1-炔基）环丙基] -1 H-咪唑的右旋（+），更有效的对映异构体，其绝对构型为（1 R，2 R）-1。然而，我们发现4- [2-（5,5-二甲基己基-1-炔基）环丙基] -1 H-咪唑的右旋，更有效的对映异构体具有（1 S，2 S）绝对构型。我们建议重新考虑GT-2331的绝对配置。
• Investigation of the Bioactive Conformation of Histamine H₃ Receptor Antagonists by the Cyclopropylic Strain-Based Conformational Restriction Strategy
  作者：Mizuki Watanabe、Takatsugu Hirokawa、Takaaki Kobayashi、Akira Yoshida、Yoshihiko Ito、Shizuo Yamada、Naoki Orimoto、Yasundo Yamasaki、Mitsuhiro Arisawa、Satoshi Shuto

  DOI：10.1021/jm901848b

  日期：2010.5.13

  We previously identified the highly potent histamine H-3 receptor antagonists (1R,2S)-2-[2-(4-chlorobenzylamino)ethyl]-1-(1H-imidazol-4-yl)cyclopropane (1) and its enantiomer ent-1. Although the conformations of 1 and ent-1 are restricted by the central cyclopropane ring, the 2-(4-chlorobenzylamino)ethyl side chain essential for the H3 receptor binding may somewhat freely rotate. To investigate the bioactive conformation, the 1'-ethyl-substituted derivatives 2a and 2b and their enantiomers ent-2a and ent-2b were designed as side chain conformation-restricted analogues of 1 and ent-1, based on the cyclopropylic strain. These compounds were synthesized, and their analysis by NMR and calculations suggested that the side chain moiety was effectively restricted in a syn-form or an anti-form by the cyclopropylic strain as expected. Pharmacological evaluation and docking simulation showed that the bioactive conformations of 1 and ent-1 appear to be the syn-form and the anti-form, respectively. Thus, the cyclopropylic strain can be effectively used for conformational restriction of the side chain moiety of cyclopropane compounds.