4.2 Article

Preparation and testing of homocubyl amines as therapeutic NMDA receptor antagonists

期刊

MEDICINAL CHEMISTRY RESEARCH
卷 22, 期 1, 页码 360-366

出版社

SPRINGER BIRKHAUSER
DOI: 10.1007/s00044-012-0029-7

关键词

Bishomocubyl-10-amine; Cubylamine; Homocubyl-9-amine; Memantine; NMDA antagonist; Trishomocubyl-4-amine

资金

  1. Ministry of Science and Education of Ukraine
  2. Merz Pharma GmbH Co.

向作者/读者索取更多资源

Computational modeling demonstrates that the van-der-Waals surfaces of homocubyl amines are similar to that of the neuroprotector Memantine (R). Utilizing readily available precursors we report the preparation of a series of homological cubylamines, namely pentacyclo[6.3.0.0(2,6).0(3,10).0(5,9)]undecyl-4-amine (trishomocubyl-4-amine, 2), pentacyclo[5.3.0.0(2,5). 0(3,9).0(4,8)]decyl-10-amine (bishomocubyl-10-amine, 3), pentacyclo[4.3.0.0(2,5).0(3,8).0(4,7)]nonyl-9-amine (homocubyl-9-amine, 4), and pentacyclo[4.2.0.0(2,5).0(3,8).0(4,7)]octyl-1-amine (cubylamine, 5). The hydrochlorides of amines 2-5 show pronounced affinity for the (+) MK-801 channel binding site, and it seems likely that these compounds would act as very fast voltage-dependent NMDA receptor antagonists.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.2
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

Article Chemistry, Organic

London Dispersion Stabilizes Chloro-Substituted cis-Double Bonds

Peter R. Schreiner, Lars Rummel, Kai Hanke, Jonathan Becker

Summary: In this study, the thermodynamic stability of cis- and trans-alkenes substituted with dispersion energy donor (DED) groups was investigated through a combination of experimental and computational methods. The equilibrium between the two isomers was found to shift towards the more crowded cis-alkene as the substituent size increased. Noncovalent interactions, particularly long-range dispersion (LD) and Pauli exchange repulsion, were identified as the dominant factors influencing the equilibrium between cis- and trans-alkenes.

SYNLETT (2023)

Article Chemistry, Multidisciplinary

Glycine Imine-The Elusive α-Imino Acid Intermediate in the Reductive Amination of Glyoxylic Acid

Viktor Paczelt, Raffael C. Wende, Peter R. Schreiner, Andre K. Eckhardt

Summary: In this study, the formation and spectroscopic characterization of glycine imine, the simplest imino acid, were reported using cryogenic matrix isolation IR and UV/Vis spectroscopy. Glycine imine was found to form after UV irradiation of 2-azidoacetic acid and could be interconverted between anti-(E,E)- and anti-(Z,Z)-conformations. In aqueous solution, glycine imine hydrolyzed to produce hydroxy glycine and hydrated glyoxylic acid. It was also observed that glycine imine could undergo self-reduction by oxidative decarboxylation chemistry when present in higher concentrations or in the presence of (FeSO4)-S-II as a reducing agent.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2023)

Article Chemistry, Multidisciplinary

Matrix isolation and photorearrangement of cis- and trans-1,2-ethenediol to glycolaldehyde

Artur Mardyukov, Raffael C. Wende, Peter R. Schreiner

Summary: 1,2-Ethenediols are key intermediates in prebiotic and interstellar syntheses of carbohydrates. In this study, we synthesized these enediols in the gas phase and trapped them in cryogenic argon matrices. Importantly, when subjected to photolysis at a wavelength of 180-254 nm, the enols rearrange into the simplest sugar, glycolaldehyde.

CHEMICAL COMMUNICATIONS (2023)

Article Chemistry, Multidisciplinary

Site-Selective Acylation of Pyranosides with Immobilized Oligopeptide Catalysts in Flow

Alexander Seitz, Raffael C. C. Wende, Peter R. R. Schreiner

Summary: We describe the site-selective acetylation of partially protected monosaccharides using immobilized oligopeptide catalysts, synthesized via solid-phase peptide synthesis. The catalysts exhibit a reversed selectivity compared to N-methylimidazole and show high selectivity for various pyranosides. The catalysts demonstrate stability for multiple reaction cycles and can be easily reused after separation from the reaction solution. They can also be used in flow without any loss of reactivity and selectivity.

CHEMISTRY-A EUROPEAN JOURNAL (2023)

Article Chemistry, Multidisciplinary

Insights into molecular cluster materials with adamantane-like core structures by considering dimer interactions

Sebastian Schwan, Andreas J. Achazi, Ferdinand Ziese, Peter R. Schreiner, Kerstin Volz, Stefanie Dehnen, Simone Sanna, Doreen Mollenhauer

Summary: A systematic study of cluster dimers in adamantane-like molecular materials reveals that the binding energy between the dimers increases with the size of the core and the substituents. The cluster interactions can be classified as substituent-substituent-dominated or core-core-dominated. Understanding the interaction of the cluster dimers allows for an initial assessment of the interactions in the materials.

JOURNAL OF COMPUTATIONAL CHEMISTRY (2023)

Article Chemistry, Organic

Probing the Size Limit of Dispersion Energy Donors with a Bifluorenylidene Balance: Magic Cyclohexyl

Finn M. Wilming, Benito Marazzi, Paul P. Debes, Jonathan Becker, Peter R. Schreiner

Summary: We synthesized 14 2,2'-disubstituted 9,9'-bifluorenylenes to quantify London dispersion interactions between dispersion energy donors. Delta G(Z/E) was measured at 333 K using 1H NMR in seven solvents. Alkyl and aryl substituents showed a preference for the folded Z-isomer due to attractive London dispersion interactions, except for tert-butyl, which unexpectedly favored the unfolded E-isomer due to increased Pauli repulsion caused by close proximity of functional groups.

JOURNAL OF ORGANIC CHEMISTRY (2023)

Article Chemistry, Multidisciplinary

Exploring the Limits of Intramolecular London Dispersion Stabilization with Bulky Dispersion Energy Donors in Alkane Solution

Jan M. Schuemann, Lukas Ochmann, Jonathan Becker, Ahmet Altun, Ingolf Harden, Giovanni Bistoni, Peter R. Schreiner

Summary: We conducted an experimental study on a cyclooctatetraene-based molecular balance with disubstituted tert-butyl (tBu), adamantyl (Ad), and diamantyl (Dia) substituents in the 1,4-/1,6-positions. Our measurements, supported by solvation computations, showed that the more sterically crowded 1,6-isomer is always favored and that the free energy is insensitive to substituent size, regardless of the solvent.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2023)

Article Chemistry, Multidisciplinary

Cucurbit[8]uril forms tight inclusion complexes with cationic triamantanes

David King, Tatjana Sumanovac, Steven Murkli, Peter R. Schreiner, Marina Sekutor, Lyle Isaacs

Summary: We synthesized quaternary (di)cationic triamantane derivatives G1 and G3 by permethylating the corresponding primary ammonium ions G2 and G4. The complexation behaviors of G1-G4 with CB[7] and CB[8] were examined using H-1 NMR spectroscopy. CB[8] fully encapsulated G1-G4 while CB[7] formed inclusion complexes with G1, G2, and G4 but could not fully encapsulate the central hydrophobic core of G3. The geometries of the CB[n]-guest complexes were determined by analyzing complexation-induced changes in chemical shifts and confirmed using molecular modeling.

NEW JOURNAL OF CHEMISTRY (2023)

Article Chemistry, Multidisciplinary

Selective Preparation of Phosphorus Mononitride (P equivalent to N) from Phosphinoazide and Reversible Oxidation to Phosphinonitrene

Weiyu Qian, Raffael C. Wende, Peter R. Schreiner, Artur Mardyukov

Summary: The interstellar candidate phosphorus mononitride PN, a metastable species, was generated through high-vacuum flash pyrolysis of (o-phenyldioxyl)phosphinoazide in cryogenic matrices. Although the PN stretching band was not directly detected because of its low infrared intensity and possible overlaps with other strong bands, o-benzoquinone, carbon monoxide, and cyclopentadienone as additional fragmentation products were clearly identified. Moreover, an elusive o-benzoquinone-PN complex formed when (o-phenyldioxyl)phosphinoazide was exposed to UV irradiation at lambda=254 nm. Its recombination to (o-phenyldioxyl)-lambda(5)-phosphinonitrile was observed upon irradiation with the light at lambda=523 nm, which demonstrates for the first time the reactivity of PN towards an organic molecule. Energy profile computations at the B3LYP/def2-TZVP density functional theory level reveal a concerted mechanism. To provide further evidence, UV/Vis spectra of the precursor and the irradiation products were recorded and agree well with time-dependent DFT computations.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2023)

Article Chemistry, Multidisciplinary

On-Surface Synthesis and Real-Space Visualization of Aromatic P3N3

Qigang Zhong, Artur Mardyukov, Ephrath Solel, Daniel Ebeling, Andre Schirmeisen, Peter R. Schreiner

Summary: On-surface synthesis is being recognized as the preferred method for generating and visualizing unconventional molecules. In this study, the structurally elusive cyclotriphosphazene (P3N3) was successfully synthesized on Cu(111) and Au(111) surfaces using molecular manipulation with unprecedented precision. The achieved atomic-level imaging revealed the planar D-3h-symmetric ring structure of cyclotriphosphazene.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2023)

Editorial Material Chemistry, Multidisciplinary

Rethinking Chemistry

Karsten Danielmeier, Peter R. Schreiner

Summary: The German Chemical Society (GDCh) has chosen "Rethinking Chemistry" as the guiding principle to address challenges related to climate change, loss of natural resources, and geopolitical conflicts. By encouraging scientists to approach chemistry from different perspectives, the GDCh aims to foster innovative and sustainable advancements in the field. This motto is also reflected in the upcoming GDCh Science Forum Chemistry (WiFo) 2023 and a dedicated Special Collection in Angewandte Chemie, showcasing the various aspects of Rethinking Chemistry.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2023)

Article Chemistry, Multidisciplinary

The Intrinsic Barrier Width and Its Role in Chemical Reactivity

Guanqi Qiu, Peter R. Schreiner

Summary: This study introduces the concepts of intrinsic and thermodynamic contributions to the barrier width in chemical reactions. Experimental and theoretical studies are used to demonstrate their distinct roles. The findings shed light on conflicting trends in chemical reactivities and contribute to a more comprehensive understanding of chemical reactions.

ACS CENTRAL SCIENCE (2023)

Article Chemistry, Multidisciplinary

The enol of propionic acid

Akkad Danho, Artur Mardyukov, Peter R. Schreiner

Summary: This study demonstrates the successful gas-phase synthesis of the previously unreported higher energy tautomer of propionic acid, prop-1-ene-1,1-diol. The enol was characterized using IR and UV/Vis spectroscopy along with density functional theory computations. Upon photolysis, the enol rearranges to propionic acid and methylketene.

CHEMICAL COMMUNICATIONS (2023)

Article Chemistry, Multidisciplinary

The temperature-dependence of host-guest binding thermodynamics: experimental and simulation studies

Laura M. Grimm, Jeffry Setiadi, Boryslav Tkachenko, Peter R. Schreiner, Michael K. Gilson, Frank Biedermann

Summary: The thermodynamic parameters of host-guest binding can be used to describe, understand, and predict molecular recognition events in aqueous systems. This study focuses on the contributions of water to binding by studying binding thermodynamics for a series of host-guest systems. It is found that the enthalpic driving forces for binding increase at higher temperatures, and heat capacity changes appear to be a general feature of host-guest complex formation in water.

CHEMICAL SCIENCE (2023)

Article Chemistry, Multidisciplinary

The enol of propionic acid

Akkad Danho, Artur Mardyukov, Peter R. Schreiner

Summary: The gas-phase synthesis of a higher energy tautomer, prop-1-ene-1,1-diol, of propionic acid is demonstrated in this study. The enol species is trapped in an argon matrix and characterized using IR and UV/Vis spectroscopy along with density functional theory calculations. Upon photolysis, the enol undergoes rearrangement to form propionic acid and methylketene.

CHEMICAL COMMUNICATIONS (2023)

暂无数据