Journal of Molecular Structure最新文献

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Study on the interaction mechanism of trypsin/pepsin-doxycycline hyclate-quercetin ternary system 胰蛋白酶/胃蛋白酶-多西环素-槲皮素三元体系的相互作用机制研究
IF 4 2区 化学
Journal of Molecular Structure Pub Date : 2024-11-03 DOI: 10.1016/j.molstruc.2024.140592
Xiangrong Li , Jingjing Zhao , Zhizhi Song , Li Shi
{"title":"Study on the interaction mechanism of trypsin/pepsin-doxycycline hyclate-quercetin ternary system","authors":"Xiangrong Li ,&nbsp;Jingjing Zhao ,&nbsp;Zhizhi Song ,&nbsp;Li Shi","doi":"10.1016/j.molstruc.2024.140592","DOIUrl":"10.1016/j.molstruc.2024.140592","url":null,"abstract":"<div><div>The interaction mechanism of trypsin/pepsin-doxycycline hyclate-quercetin ternary system was investigated by the molecular docking, molecular dynamics simulation and multiple spectroscopic methods. The results show that when doxycycline hyclate and quercetin are bound with trypsin/pepsin in sequence to form the ternary system, the different sequence of doxycycline hyclate/quercetin binding has different effects on the binding affinity of the two drugs and trypsin/pepsin. However, the binding site of the two drugs on trypsin/pepsin is basically the same as that of the corresponding binary system, except for pepsin-doxycycline hyclate (first)-quercetin ternary system. For the trypsin-quercetin (first)-doxycycline hyclate ternary system, the activity of trypsin is inhibited due to the presence of quercetin. The doxycycline hyclate that binding first even affects the binding site of quercetin and the inhibition of pepsin activity. When doxycycline hyclate and quercetin bind with trypsin/pepsin at the same time, the binding site of doxycycline hyclate and quercetin on trypsin/pepsin is completely different from their corresponding binary system. The values of binding constant of 10<sup>4</sup> L mol<sup>−1</sup> indicate that the binding affinity are all moderate. In ternary system, the free concentration of doxycycline hyclate and quercetin in trypsin/pepsin is higher than that in binary system. Hydrophobic interactions, electrostatic forces and hydrogen bonds are the main non-covalent forces. The extent of unfolding of trypsin/pepsin peptide backbone in ternary system is greater than that in binary system. The effects of binary and ternary systems on the secondary structure of trypsin/pepsin are not significantly different, and both results in the reduction of trypsin/pepsin β-sheet.</div></div>","PeriodicalId":16414,"journal":{"name":"Journal of Molecular Structure","volume":"1322 ","pages":"Article 140592"},"PeriodicalIF":4.0,"publicationDate":"2024-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis and characterization of 2-(3,4-dihydroxyphenyl)-4-((4-hydroxyphenyl)imino)-4h-chromene-3,5,7-triol: In vitro biological evaluation and computational analysis 2-(3,4-二羟基苯基)-4-((4-羟基苯基)亚氨基)-4-苯并吡喃-3,5,7-三醇的合成与表征:体外生物学评价和计算分析
IF 4 2区 化学
Journal of Molecular Structure Pub Date : 2024-11-03 DOI: 10.1016/j.molstruc.2024.140562
Udaya Rajesh R, Dhanaraj Sangeetha
{"title":"Synthesis and characterization of 2-(3,4-dihydroxyphenyl)-4-((4-hydroxyphenyl)imino)-4h-chromene-3,5,7-triol: In vitro biological evaluation and computational analysis","authors":"Udaya Rajesh R,&nbsp;Dhanaraj Sangeetha","doi":"10.1016/j.molstruc.2024.140562","DOIUrl":"10.1016/j.molstruc.2024.140562","url":null,"abstract":"<div><div>Secondary phenolic metabolites like flavonoids, that are found in numerous plant sections and have a range of uses. Quercetin falls under the category of flavonols, belonging to the flavonoids found in various medicinal plants, some common fruits, and vegetables with various applications. However, quercetin, with its various applications, is not well established in the pharmaceutical industry since it is associated with a lot of drawbacks, like instability in the gastrointestinal tract, the first-pass effect, solubility issues, etc. Quercetin-Schiff base derivatives are essential for targeting cancer cells and enhancing biological activities due to the formation of the C=N (imine group), which plays a major role in enhancing biological activities. In this research article, quercetin Schiff base (Q1sb) was synthesised and analysed using spectroscopic techniques like <sup>1</sup>H NMR, <sup>13</sup>C NMR, HRMS, etc. Biological activities like anti-bacterial, antioxidant, anti-inflammatory, and cytotoxicity analyses were done on four cancer cell lines, namely A549, HeLa, HepG2, and MCF-7, and molecular docking were done on some of the common targets. The first section explains the characteristics of flavonoid, the therapeutic action and drawbacks of quercetin, and the importance of Schiff base derivatives; the second section explains the synthesis method and characterization; and the third section explains the biological applications and molecular docking studies.</div></div>","PeriodicalId":16414,"journal":{"name":"Journal of Molecular Structure","volume":"1322 ","pages":"Article 140562"},"PeriodicalIF":4.0,"publicationDate":"2024-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exploring antitumor activity of novel imidazo[2,1-b]thiazole and imidazo[1,2-a]pyridine derivatives on MDA-MB-231 cell line: Targeting VEGFR-2 enzyme with computational insight 探索新型咪唑并[2,1-b]噻唑和咪唑并[1,2-a]吡啶衍生物对 MDA-MB-231 细胞系的抗肿瘤活性:利用计算洞察力靶向 VEGFR-2 酶
IF 4 2区 化学
Journal of Molecular Structure Pub Date : 2024-11-03 DOI: 10.1016/j.molstruc.2024.140579
Mohamed K. Elgohary , Mahmoud S. Elkotamy , Sara T. Al-Rashood , Faizah A. Binjubair , Renad S. Alarifi , Hazem A. Ghabbour , Wagdy M. Eldehna , Hatem A. Abdel-Aziz
{"title":"Exploring antitumor activity of novel imidazo[2,1-b]thiazole and imidazo[1,2-a]pyridine derivatives on MDA-MB-231 cell line: Targeting VEGFR-2 enzyme with computational insight","authors":"Mohamed K. Elgohary ,&nbsp;Mahmoud S. Elkotamy ,&nbsp;Sara T. Al-Rashood ,&nbsp;Faizah A. Binjubair ,&nbsp;Renad S. Alarifi ,&nbsp;Hazem A. Ghabbour ,&nbsp;Wagdy M. Eldehna ,&nbsp;Hatem A. Abdel-Aziz","doi":"10.1016/j.molstruc.2024.140579","DOIUrl":"10.1016/j.molstruc.2024.140579","url":null,"abstract":"<div><div>Our study explored the anticancer potential of novel heterocyclic compounds, specifically <strong>6a-d, 8a-d, 12a-d</strong>, and <strong>13a-d</strong>, which are derived from imidazo[2,1-<em>b</em>]thiazole and imidazo[1,2-<em>a</em>]pyridine and linked through a hydrazide moiety. These compounds were assessed for their anticancer activity toward the MDA-MB-231 breast cancer cell line to evaluate their effectiveness in inhibiting cancer cell proliferation. Among the compounds tested, <strong>13c</strong> and <strong>13d</strong> emerged as the most active, with IC<sub>50</sub> values of 4.40 ± 2.87 µM and 4.69 ± 2.55 µM, respectively. These two compounds were further investigated for their effects on VEGFR-2 enzymatic activity, cell cycle progression, and apoptosis, then <strong>13c</strong> and <strong>13d</strong> were further evaluated for their impact on DNA fragmentation using the comet assay. Both compounds demonstrated a significant increase in DNA fragmentation, with levels of damage being twice as high as those observed in the untreated control cells. Molecular docking studies through VEGFR-2 demonstrated that compounds <strong>13c</strong> and <strong>13d</strong> bind to VEGFR-2 in a manner comparable to the co-crystallized ligand sunitinib <strong>I</strong>. Further analysis using density functional theory highlighted their favorable physical properties. Additionally, computational evaluations of ADME and drug-likeness suggest that these derivatives hold promise and merit further investigation. The ultimate goal is to develop effective, safe, and orally bioavailable VEGFR-2 inhibitors for potential use in anticancer therapy.</div></div>","PeriodicalId":16414,"journal":{"name":"Journal of Molecular Structure","volume":"1322 ","pages":"Article 140579"},"PeriodicalIF":4.0,"publicationDate":"2024-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
TiO2/ZnWO3 with improved photocatalytic performance in the preparation of chromeno[4,3-b]chromenes, as cardiovascular drugs 在制备作为心血管药物的色烯并[4,3-b]色烯过程中具有更好光催化性能的 TiO2/ZnWO3
IF 4 2区 化学
Journal of Molecular Structure Pub Date : 2024-11-03 DOI: 10.1016/j.molstruc.2024.140596
Lei Cao , Behnaz Abdi , Ning Ma , Hongwei Liu , Chunyan Zhang , Pengfei Lv , Juan Zhang
{"title":"TiO2/ZnWO3 with improved photocatalytic performance in the preparation of chromeno[4,3-b]chromenes, as cardiovascular drugs","authors":"Lei Cao ,&nbsp;Behnaz Abdi ,&nbsp;Ning Ma ,&nbsp;Hongwei Liu ,&nbsp;Chunyan Zhang ,&nbsp;Pengfei Lv ,&nbsp;Juan Zhang","doi":"10.1016/j.molstruc.2024.140596","DOIUrl":"10.1016/j.molstruc.2024.140596","url":null,"abstract":"<div><div>Chromeno[4,3-b]chromenes have shown potential as effective drugs against cardiovascular diseases, primarily due to their diverse biological activities, including anti-inflammatory and antioxidant properties. This study was conducted on a new heterojunction nanocomposite TiO<sub>2</sub>/ZnWO<sub>3</sub> consisting of titanium dioxide (TiO<sub>2</sub>) and zinc tungstate (ZnWO<sub>3</sub>) with enhanced photocatalytic capability. TiO<sub>2</sub>/ZnWO<sub>3</sub> nanophotocatalyst is characterized by FT-IR, XRD, DRS, SEM, and EDX and performed as an efficient nanophotocatalyst in the synthesis of chromeno[4,3-b]chromene derivatives. The research focused on the intricate interplay of the components, aiming to optimize the catalytic reactions under green-light irradiation. Through this investigation, insights were gained into the mechanistic pathways and the potential for improved yields in the formation of the desired chromene. TiO<sub>2</sub> has the ability to absorb light and produce electrons and holes when exposed to the direct light; but to increase its photocatalytic activity, an additional component ZnWO<sub>3</sub> is combined. Effect of photocatalyst amount, reaction time, temperature, and solvent as well as reusability of the nanocomposite are investigated. The research focused on the intricate interplay of the components, aiming to optimize the catalytic reactions under green-light irradiation. Through this investigation, insights were gained into the mechanistic pathways and the potential for improved yields in the formation of the desired chromene. TiO<sub>2</sub> has the ability to absorb light and produce electrons and holes when exposed to the direct light; but to increase its photocatalytic activity, an additional component ZnWO<sub>3</sub> is combined. Effect of photocatalyst amount, reaction time, temperature, and solvent as well as reusability of the nanocomposite are investigated.</div></div>","PeriodicalId":16414,"journal":{"name":"Journal of Molecular Structure","volume":"1322 ","pages":"Article 140596"},"PeriodicalIF":4.0,"publicationDate":"2024-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A tetrahedral zinc(II) coordination polymer: Synthesis, characterisation, and application in ascorbic Acid fluorescence sensing 四面体锌(II)配位聚合物:合成、表征及在抗坏血酸荧光传感中的应用
IF 4 2区 化学
Journal of Molecular Structure Pub Date : 2024-11-03 DOI: 10.1016/j.molstruc.2024.140530
Yuehua He , Mithun Kumar Ghosh , Ren-Min Ma , Lu Lu , Shulan Cai , Mohd Afzal , Abdullah Alarifi , Tanmay Kumar Ghorai
{"title":"A tetrahedral zinc(II) coordination polymer: Synthesis, characterisation, and application in ascorbic Acid fluorescence sensing","authors":"Yuehua He ,&nbsp;Mithun Kumar Ghosh ,&nbsp;Ren-Min Ma ,&nbsp;Lu Lu ,&nbsp;Shulan Cai ,&nbsp;Mohd Afzal ,&nbsp;Abdullah Alarifi ,&nbsp;Tanmay Kumar Ghorai","doi":"10.1016/j.molstruc.2024.140530","DOIUrl":"10.1016/j.molstruc.2024.140530","url":null,"abstract":"<div><div>A new coordination polymer (CP), {[Zn(HL)₂(bib)]ₙ.0·25H<sub>2</sub>O} (<strong>1</strong>), was synthesized and characterized for its structural, thermal, and luminescence properties. The compound was obtained by reacting H<sub>3</sub>L= 3-(4-carboxyphenoxy)-5-methylbenzoic acid, bib = 1,4-bis(1-imidazoly)benzene, and Zn(ClO₄)₂·6H₂O in aqueous solution, followed by hydrothermal treatment at 120 °C for 72 h. Single-crystal X-ray diffraction revealed a 1D polymeric chain with zinc centres in a distorted tetrahedral geometry, coordinated by carboxylate and imidazole-based ligands. Infrared spectroscopy (FT-IR) and thermogravimetric analysis (TGA) confirmed the bonding environment and thermal stability. <strong>CP 1</strong> exhibited strong luminescence, peaking at 205 nm upon excitation at 285 nm, and demonstrated selective sensing of ascorbic acid (AA) with a high quenching efficiency (<em>K</em><sub>sv</sub> = 4.35 × 10² M⁻¹) and a detection limit of 3.15 × 10<sup>⁻4</sup> M The luminescence was pH-dependent, with optimal fluorescence near neutral pH. These findings highlight the potential of <strong>CP 1</strong> as a sensitive probe for AA detection, offering applications in environmental monitoring and chemical sensing.</div></div>","PeriodicalId":16414,"journal":{"name":"Journal of Molecular Structure","volume":"1322 ","pages":"Article 140530"},"PeriodicalIF":4.0,"publicationDate":"2024-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142572093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A 3D nitrogen-rich heat-resistant supramolecular MOF with superior energetic performances assembled from Zn(II) and 5-aminotetrazole 由 Zn(II) 和 5-aminotetrazole 组装而成的三维富氮耐热超分子 MOF 具有优异的能量性能
IF 4 2区 化学
Journal of Molecular Structure Pub Date : 2024-11-02 DOI: 10.1016/j.molstruc.2024.140547
Jian-Di Lin , Fa-Kun Zheng
{"title":"A 3D nitrogen-rich heat-resistant supramolecular MOF with superior energetic performances assembled from Zn(II) and 5-aminotetrazole","authors":"Jian-Di Lin ,&nbsp;Fa-Kun Zheng","doi":"10.1016/j.molstruc.2024.140547","DOIUrl":"10.1016/j.molstruc.2024.140547","url":null,"abstract":"<div><div>Heat-resistant explosives are pivotal for specialized applications demanding high thermal stability, essential in both civil and military sectors, especially in extreme environments. Our study focuses on the synthesis of a 3D nitrogen-rich supramolecular energetic metal-organic framework (MOF), Zn(ATZ)<sub>2</sub> (<strong>1</strong>), using the 5-aminotetrazole (HATZ) ligand and Zn(II) ion. Structural analysis indicates that compound <strong>1</strong> adopts the orthorhombic <em>CmCm</em> space group and possesses a robust 2D network, characterized by strong π-π packing interactions between 2D layers, offering exceptional thermal stability up to 322 °C with minimal mechanical sensitivity. The standard molar enthalpy of formation (<em>Δ<sub>f</sub>H<sup>o</sup></em>) and heat of detonation (<em>ΔH<sub>det</sub></em>) for compound <strong>1</strong> are calculated to be 7.08 kJ/g and 7.34 kJ/g, respectively. Remarkably, the <em>Δ<sub>f</sub>H<sup>o</sup></em> of compound <strong>1</strong> significantly exceeds those of traditional heat-resistant explosives like RDX (0.32 kJ/g), HNS (0.17 kJ/g), TNT (–0.295 kJ/g), and TATB (–0.54 kJ/g), and is also higher than those of most reported energetic MOF materials. Similarly, its <em>ΔH<sub>det</sub></em> value surpasses those of common explosives such as TNT (4.144 kJ/g), HMX (5.525 kJ/g) and RDX (5.71 kJ/g), as well as the majority of reported energetic MOFs. Compound <strong>1</strong> also demonstrates impressive detonation properties with a velocity (<em>D</em>) of 7.22 km s<sup>-1</sup> and a pressure (<em>P</em>) of 21.95 GPa, outperforming many other energetic MOF materials. These superior energetic characteristics position compound <strong>1</strong> as a strong candidate for heat-resistant explosives, showcasing its potential for future applications in demanding environments.</div></div>","PeriodicalId":16414,"journal":{"name":"Journal of Molecular Structure","volume":"1322 ","pages":"Article 140547"},"PeriodicalIF":4.0,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
One-pot synthesis of tricyclic pyrano[3.2-c]chromene derivatives and their evaluation through in vitro immunomodulatory activity against T cells; Molecular docking investigations and ADME-Tox prediction studies 三环吡喃并[3.2-c]色烯衍生物的单锅合成及其对 T 细胞的体外免疫调节活性评估;分子对接调查和 ADME-Tox 预测研究
IF 4 2区 化学
Journal of Molecular Structure Pub Date : 2024-11-02 DOI: 10.1016/j.molstruc.2024.140554
Ahmed Chelihi , Amel Medjdoub Tahir , Ridha Hassaine , Ismail Daoud , Mohammed Benabdallah , Amel Zoubeyda Merzouk , Hafida Merzouk , Noureddine Choukchou-Braham , Nadia Taibi
{"title":"One-pot synthesis of tricyclic pyrano[3.2-c]chromene derivatives and their evaluation through in vitro immunomodulatory activity against T cells; Molecular docking investigations and ADME-Tox prediction studies","authors":"Ahmed Chelihi ,&nbsp;Amel Medjdoub Tahir ,&nbsp;Ridha Hassaine ,&nbsp;Ismail Daoud ,&nbsp;Mohammed Benabdallah ,&nbsp;Amel Zoubeyda Merzouk ,&nbsp;Hafida Merzouk ,&nbsp;Noureddine Choukchou-Braham ,&nbsp;Nadia Taibi","doi":"10.1016/j.molstruc.2024.140554","DOIUrl":"10.1016/j.molstruc.2024.140554","url":null,"abstract":"<div><div>The aim of this work is the <em>in vitro</em> determination of the immunomodulation effect of pyrano[3,2-<em>c</em>]chromenes on the proliferation of T lymphocyts. These tricyclic heterocycles were prepared at room temperature via a one-pot, three-component condensation reaction involving 4‑hydroxy-2<em>H</em>-chromen-2-one, aromatic aldehydes, and malononitrile, using morpholine as a catalyst in a 1:1 ethanol/water mixture. This multicomponent reaction affords the product in high yields, in accordance with the criteria of green chemistry. The structure elucidation was accomplished by spectral data, IR, NMR (<sup>1</sup>H, <sup>13</sup>C, 2D). We determined the <em>in vitro</em> effects of 2-amino-4-(3‑hydroxy-5-methoxyphenyl)-5-oxo-4<em>H</em>,5<em>H</em>-pyrano[3,2-<em>c</em>]chromene-3-carbonitrile (<strong>AC09</strong>) the 2-amino-5-oxo-4-(thiophen-2-yl)-4<em>H</em>,5<em>H</em>-pyrano[3,2-<em>c</em>]chromene-3-carbonitrile (<strong>AC11</strong>) derivatives, on the proliferative responses of human T lymphocyts cells, cytokine secretion and intracellular redox status. The study revealed that compounds AC09 and AC11 are efficient immunostimulants in a dose-dependent manner.</div><div>Human lymphocytes were less sensitive to AC11 at high concentrations compared to the potency of AC09. Human lymphocyte IL-2, IFNγ and IL-4 secretions were significantly enhanced by those pyrano[3,2-c]chromenes derivatives in a dose-dependent manner. The levels of intracellular lymphocytes glutathione (GSH), were unaffected by <strong>AC09</strong> and <strong>AC11</strong> at any concentrations. <strong>AC09</strong> and <strong>AC11</strong> induce a significant increase in hydroperoxide and carbonyl protein contents at high concentrations. Conversely, a computational study using molecular modelling revealed that compounds <strong>AC09</strong> and <strong>AC11</strong> exhibit a strong affinity for the active site residues of Interferon-γ (IFN-γ; PDB ID: <span><span>6E3K</span><svg><path></path></svg></span>) target. This is confirmed by the low score energy value and the formation of different types of interactions such as: hydrogen bonds, hydrophobic interactions, and van der Waals forces. Moreover, all Drug likeness's rules were validated, and no toxicity is presented by these compounds. Finally, <em>in vitro</em> studies, molecular docking techniques and ADME-T (Absorption, Distribution, Metabolism, Excretion and Toxicity) evaluations were successfully conducted, aiding in the identification of new IFN-<em>γ</em> target inhibitors. A comparative analysis /or studies was then carried out to highlight the complementary effects of the two approaches.</div></div>","PeriodicalId":16414,"journal":{"name":"Journal of Molecular Structure","volume":"1322 ","pages":"Article 140554"},"PeriodicalIF":4.0,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Molecular modeling aided design, synthesis, and activity evaluation of N-arylindole derivatives as GPR52 agonists 分子建模辅助设计、合成和评估作为 GPR52 激动剂的 N-芳基吲哚衍生物的活性
IF 4 2区 化学
Journal of Molecular Structure Pub Date : 2024-11-02 DOI: 10.1016/j.molstruc.2024.140565
Qingkun Wu , Jingxuan Hou , Qingshan Gu , Meiqi Shi , Lu Zheng
{"title":"Molecular modeling aided design, synthesis, and activity evaluation of N-arylindole derivatives as GPR52 agonists","authors":"Qingkun Wu ,&nbsp;Jingxuan Hou ,&nbsp;Qingshan Gu ,&nbsp;Meiqi Shi ,&nbsp;Lu Zheng","doi":"10.1016/j.molstruc.2024.140565","DOIUrl":"10.1016/j.molstruc.2024.140565","url":null,"abstract":"<div><div>G protein-coupled receptor 52 (GPR52) is considered to be a promising target to improve the symptoms of psychiatric disorders and its agonists are expected to treat schizophrenia without traditional side effects. Several research institutions have reported some small molecule GPR52 agonists, which can be the starting point for rational drug development. In this study, a series of <em>N</em>-arylindole derivatives were designed and synthesized based on <strong>3g</strong> according to classical pharmacochemical methods and computer aided drug design (CADD). The designed compounds exhibited good to excellent activities and the structure-activity relationship (SAR) study was explored. The results show that the connection mode between the hydrophilic head (Part I) and the indole ring (Part II) plays an important role in the GPR52 agonist activity. Among these compounds, compounds <strong>16</strong> and <strong>21</strong> have good GPR52 agonist activity (EC<sub>50</sub> = 93 nM and 75 nM) and can inhibit hyperactive behavior in mice induced by MK-801 (EC<sub>50</sub> =7.94 mg/kg and 6.64 mg/kg). These designed small molecules will provide new options for the development of novel GPR52 agonists.</div></div>","PeriodicalId":16414,"journal":{"name":"Journal of Molecular Structure","volume":"1322 ","pages":"Article 140565"},"PeriodicalIF":4.0,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142587096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Novel s-triazine derivatives as potential anticancer agents: Synthesis, DFT, DNA binding, molecular docking, MD simulation and in silico ADMET profiling 作为潜在抗癌剂的新型 s-三嗪衍生物:合成、DFT、DNA 结合、分子对接、MD 模拟和硅学 ADMET 分析
IF 4 2区 化学
Journal of Molecular Structure Pub Date : 2024-11-02 DOI: 10.1016/j.molstruc.2024.140558
Alia Mushtaq, Muhammad Moazzam Naseer
{"title":"Novel s-triazine derivatives as potential anticancer agents: Synthesis, DFT, DNA binding, molecular docking, MD simulation and in silico ADMET profiling","authors":"Alia Mushtaq,&nbsp;Muhammad Moazzam Naseer","doi":"10.1016/j.molstruc.2024.140558","DOIUrl":"10.1016/j.molstruc.2024.140558","url":null,"abstract":"<div><div>The ongoing challenge of cancer in modern medicine highlights the urgent need for targeted therapeutic strategies, particularly against the EGFR/PI3K/AKT/mTOR signalling pathways, which are pivotal in tumorigenesis. This study presents the design, synthesis, characterization, DNA binding studies and computational evaluation of a novel series of trisubstituted <em>s</em>-triazine derivatives <strong>3a–n</strong> as potential anticancer agents. The synthetic methodology utilized the reaction of various oxygen-containing nucleophiles with cyanuric chloride via nucleophilic aromatic substitution, yielding the corresponding target products with high yield and purity. Density Functional Theory (DFT) calculations utilizing the B3LYP level provided insights into the electronic properties of the compounds, with derivatives <strong>3f, 3n,</strong> and <strong>3l</strong> displaying the lowest energy gaps and highest electrophilicity indices, indicative of their enhanced reactivity. DNA binding results from UV–Vis absorption spectroscopy confirmed the groove mode of binding for the most potent compound <strong>3f</strong> with the binding constant (K<sub>b</sub>) value of 6.75 × 10<sup>4</sup> M<sup>−1</sup>. Molecular docking studies against DNA (PDB ID: <span><span>3EY0</span><svg><path></path></svg></span>) and EGFR (PDB ID: <span><span>6V6O</span><svg><path></path></svg></span>) revealed strong binding affinities, with compound <strong>3f</strong> (R<sub>1</sub>= ethoxy, R<sub>2</sub>= 3-CF<sub>3</sub>) exhibiting a notable binding energy of -8.9 kcal/mol and −9.1 kcal/mol respectively. Additionally, these compounds showed significant binding interactions with PI3K (PDB ID: <span><span>5HJB</span><svg><path></path></svg></span>) and mTOR (PDB ID: <span><span>4JSV</span><svg><path></path></svg></span>), suggesting their potential as dual inhibitors of the PI3K/AKT/mTOR pathway. The drug-likeness and ADMET profiles further support the therapeutic promise of compound <strong>3f</strong> bearing a 3-trifluoromethyl substituent.</div></div>","PeriodicalId":16414,"journal":{"name":"Journal of Molecular Structure","volume":"1322 ","pages":"Article 140558"},"PeriodicalIF":4.0,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comprehensive assessment of schiff base derived from 4-Chloroaniline and 2-Formylphenol: Molecular architecture, experimental with computational bioactivity profiling, emphasizing anticancer efficacy against pulmonary and mammary carcinoma cell models 全面评估由 4-氯苯胺和 2-甲酰基苯酚衍生的片基:分子结构、实验和计算生物活性分析,强调对肺癌和乳腺癌细胞模型的抗癌功效
IF 4 2区 化学
Journal of Molecular Structure Pub Date : 2024-11-02 DOI: 10.1016/j.molstruc.2024.140590
K.J. Rajimon , Hamed A. El-Serehy , Neha Kannan , Renjith Thomas
{"title":"Comprehensive assessment of schiff base derived from 4-Chloroaniline and 2-Formylphenol: Molecular architecture, experimental with computational bioactivity profiling, emphasizing anticancer efficacy against pulmonary and mammary carcinoma cell models","authors":"K.J. Rajimon ,&nbsp;Hamed A. El-Serehy ,&nbsp;Neha Kannan ,&nbsp;Renjith Thomas","doi":"10.1016/j.molstruc.2024.140590","DOIUrl":"10.1016/j.molstruc.2024.140590","url":null,"abstract":"<div><div>This study thoroughly analyses the structural and biological properties of a Schiff base compound synthesized from the condensation of 2-formyl phenol and 4-chloroaniline. Single crystal X-ray diffraction examination indicated that the compound crystallizes in the monoclinic space group P21/c, with unit cell parameters <em>a</em> = 13.4232(15) Å, <em>b</em> = 5.7860(6) Å, <em>c</em> = 14.699(2) Å, β = 106.048(6) °, and <em>Z</em> = 4. The molecular structure has an E configuration around the C = N double bond, with a bond length of 1.266(2) Å, and includes an intramolecular O—H⋯N hydrogen bond. Hirshfeld surface analysis elucidated intermolecular interactions inside the crystal lattice, emphasizing dominant hydrogen-hydrogen, hydrogen-chlorine, and carbon-hydrogen contacts. The chemical exhibited concentration-dependent antioxidant and anti-inflammatory effects. Studies on DNA interactions indicate van der Waals forces between the ligand and nucleic acid, whereas it demonstrated considerable binding affinity for BSA with a ΔG value of -6.9 kcal/mol. ADME study revealed values within the recommended range, indicating advantageous pharmacokinetic characteristics. PASS filter-based cytotoxicity predictions indicated significant anti-cancer efficacy against breast adenocarcinoma, small cell lung carcinoma, and lung cancer. Toxicological assessments in diverse models indicated no possible irritation to skin and ocular tissues, highlighting its safety profile for therapeutic use. This research advances our comprehension of Schiff bases with halogen substituents and their prospective uses in chemistry and biology.</div></div>","PeriodicalId":16414,"journal":{"name":"Journal of Molecular Structure","volume":"1322 ","pages":"Article 140590"},"PeriodicalIF":4.0,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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