N-[3-(1-trityl-1H-imidazol-4-yl)propyl]guanidine | 1001159-95-0

• 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: N-[3-(1-trityl-1H-imidazol-4-yl)propyl]guanidine
• 英文别名: 3-(1-trityl-1H-imidazol-4-yl)propylguanidine；2-[3-(1-Tritylimidazol-4-yl)propyl]guanidine
• CAS: 1001159-95-0
• 化学式: C₂₆H₂₇N₅
• 分子量: 409.534
• InChiKey: GTMAPNPJXUEOFN-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.9
• 重原子数：
  31
• 可旋转键数：
  8
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.15
• 拓扑面积：
  82.2
• 氢给体数：
  2
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  N-[3-(1-trityl-1H-imidazol-4-yl)propyl]guanidine 、 (S)-3-苯基丁酸 在 sodium hydride 、 N,N'-羰基二咪唑 作用下， 以 四氢呋喃 、 mineral oil 为溶剂， 反应 5.0h， 生成 C₃₆H₃₇N₅O
  参考文献：
  名称：

  Chiral NG-acylated hetarylpropylguanidine-type histamine H2 receptor agonists do not show significant stereoselectivity

  摘要：

  A set of chiral imidazolylpropylguanidines and 2-aminothiazolylpropylguanidines bearing N-G-3-phenyl- or N-G-3-cyclohexylbutanoyl residues was synthesized and investigated for histamine H-2 receptor (H2R) agonism ( guinea pig (gp) right atrium, GTPase assay on recombinant gp and human (h)H2R) and for hH(2)R selectivity compared to hH(1)R, hH(3)R and hH(4)R. In contrast to previous studies on arpromidine derivatives, the present investigation of acylguanidine-type compounds revealed only very low eudismic ratios (1.1-3.2), indicating the stereochemistry of the acyl moiety to play only a minor role in this series of H2R agonists. (C) 2010 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2010.03.082
• 作为产物：
  描述：

  N,N'-bis(benzyloxycarbonyl)-[3-(1-trityl-1H-imidazol-4-yl)propyl]guanidine 在 palladium 10% on activated carbon 、 氢气 作用下， 以 四氢呋喃 、 甲醇 为溶剂， 20.0 ℃ 、500.01 kPa 条件下， 反应 24.0h， 以98%的产率得到N-[3-(1-trityl-1H-imidazol-4-yl)propyl]guanidine
  参考文献：
  名称：

  酰基胍作为胍的生物等排体：NG酰化的咪唑基丙基胍，一种新型的组胺H2受体激动剂。

  摘要：

  N1-芳基（杂芳基）烷基-N2- [3-（1H-咪唑-4-基）丙基]胍是有效的组胺H2受体（H2R）激动剂，但由于缺乏口服生物利用度和CNS渗透性而削弱了它们的适用性。为了改善药代动力学，我们在胍基部分附近引入了羰基而不是亚甲基，从而将新型H2R激动剂的碱性降低了4-5个数量级。一些具有一个苯环的酰基胍比其二芳基类似物甚至更有效。如通过HPLC-MS证明的，酰基胍（烷基胍的生物等排体）从小鼠的肠中吸收并在脑中检测到。在使用重组受体的GTPase检测中，豚鼠的酰基胍比人的H2R更有力。在hH1R和hH3R处，这些化合物对中度拮抗剂或部分激动剂均弱。而且，确定了有效的部分hH4R激动剂。受体亚型的选择性取决于咪唑基丙基胍基团（特权结构），为包括强效H4R激动剂在内的独特药理学手段开辟了道路。

  DOI：

  10.1021/jm800841w

文献信息

• Acylguanidines as Bioisosteres of Guanidines: <i>N</i>^G-Acylated Imidazolylpropylguanidines, a New Class of Histamine H₂ Receptor Agonists
  作者：Prasanta Ghorai、Anja Kraus、Max Keller、Carsten Götte、Patrick Igel、Erich Schneider、David Schnell、Günther Bernhardt、Stefan Dove、Manfred Zabel、Sigurd Elz、Roland Seifert、Armin Buschauer

  DOI：10.1021/jm800841w

  日期：2008.11.27

  demonstrated by HPLC-MS, the acylguanidines (bioisosteres of the alkylguanidines) were absorbed from the gut of mice and detected in brain. In GTPase assays using recombinant receptors, acylguanidines were more potent at the guinea pig than at the human H2R. At the hH1R and hH3R, the compounds were weak to moderate antagonists or partial agonists. Moreover, potent partial hH4R agonists were identified. Receptor

  N1-芳基（杂芳基）烷基-N2- [3-（1H-咪唑-4-基）丙基]胍是有效的组胺H2受体（H2R）激动剂，但由于缺乏口服生物利用度和CNS渗透性而削弱了它们的适用性。为了改善药代动力学，我们在胍基部分附近引入了羰基而不是亚甲基，从而将新型H2R激动剂的碱性降低了4-5个数量级。一些具有一个苯环的酰基胍比其二芳基类似物甚至更有效。如通过HPLC-MS证明的，酰基胍（烷基胍的生物等排体）从小鼠的肠中吸收并在脑中检测到。在使用重组受体的GTPase检测中，豚鼠的酰基胍比人的H2R更有力。在hH1R和hH3R处，这些化合物对中度拮抗剂或部分激动剂均弱。而且，确定了有效的部分hH4R激动剂。受体亚型的选择性取决于咪唑基丙基胍基团（特权结构），为包括强效H4R激动剂在内的独特药理学手段开辟了道路。
• Synthesis and Structure−Activity Relationships of Cyanoguanidine-Type and Structurally Related Histamine H₄ Receptor Agonists
  作者：Patrick Igel、Roland Geyer、Andrea Strasser、Stefan Dove、Roland Seifert、Armin Buschauer

  DOI：10.1021/jm900526h

  日期：2009.10.22

  Recently, we identified high-affinity human histamine H-3 (hH(3)R) and H-4 receptor (hH(4)R) ligands among a series of N-G-acylated imidazolylpropylguanidines, which were originally designed as histamine H-2 receptor (H2R) agonists. Aiming at selectivity for hH(4)R, the acylguanidine group was replaced with related moieties. Within a series of cyanoguanidines, 2-cyano-1-[4-(1H-imidazol-4-yl)butyl]-3-[(2-phenylthio)ethyl]guanidine (UR-PI376, 67) was identified as the most potent hH(4)R agonist (pEC(50) = 7.47, alpha = 0.93) showing negligible hH(1)R and hH(2)R activities and significant selectivity over the hH(3)R (pK(B) = 6.00, alpha = -0.28), as determined in steady-state GTPase assays using. membrane preparations of hH(x)R-expressing Sf9 cells. In contrast to previously described selective H4R agonists, this compound and other 3-substituted derivatives are devoid of agonistic activity at the other HR subtypes. Modeling of the binding mode of 67 suggests that the cyanoguanidine moiety forms charge-assisted hydrogen bonds not only with the conserved Asp-94 but also with the hH(4)R-specific Arg-341 residue. 2-Carbamoyl-1-[2-(1H-imidazol-4-yl)ethyl]-3-(3-phenylpropyl)guanidine (UR-PI97, 88) was unexpectedly identified as a highly potent and selective hH(3)R inverse agonist (pK(B) = 8.42, > 300-fold selectivity over the other HR subtypes).
• <i>N</i>^G-Acylated Imidazolylpropylguanidines as Potent Histamine H₄ Receptor Agonists: Selectivity by Variation of the <i>N</i>^G-Substituent
  作者：Patrick Igel、Erich Schneider、David Schnell、Sigurd Elz、Roland Seifert、Armin Buschauer

  DOI：10.1021/jm9000693

  日期：2009.4.23

  3-(1H-Imidazol-4-yl)propylguanidine (SK&F 91486, 4) was identified as a potent partial agonist at the human histamine H-3 receptor (hH(3)R) and human histamine H-4 receptor (hH(4)R). With the aim to increase selectivity for the hH4R, the guanidine group in 4 was acylated. N-1-Acetyl-N-2-[3-(1H-imidazol-4-yl)propyl]guanidine (UR-PI288, 13) was a potent full agonist at the hH(4)R (pEC(50) = 8.31; alpha = 1.00), possessing more than 1000- and 100-fold selectivity relative to the hH(1)R and hH(2)R, respectively, and possessing only low intrinsic activity (alpha = 0.27) at the hH(3)R.
• Chiral NG-acylated hetarylpropylguanidine-type histamine H2 receptor agonists do not show significant stereoselectivity
  作者：Prasanta Ghorai、Anja Kraus、Tobias Birnkammer、Roland Geyer、Günther Bernhardt、Stefan Dove、Roland Seifert、Sigurd Elz、Armin Buschauer

  DOI：10.1016/j.bmcl.2010.03.082

  日期：2010.5

  A set of chiral imidazolylpropylguanidines and 2-aminothiazolylpropylguanidines bearing N-G-3-phenyl- or N-G-3-cyclohexylbutanoyl residues was synthesized and investigated for histamine H-2 receptor (H2R) agonism ( guinea pig (gp) right atrium, GTPase assay on recombinant gp and human (h)H2R) and for hH(2)R selectivity compared to hH(1)R, hH(3)R and hH(4)R. In contrast to previous studies on arpromidine derivatives, the present investigation of acylguanidine-type compounds revealed only very low eudismic ratios (1.1-3.2), indicating the stereochemistry of the acyl moiety to play only a minor role in this series of H2R agonists. (C) 2010 Elsevier Ltd. All rights reserved.