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1.
J Med Chem ; 67(10): 7788-7824, 2024 May 23.
Artigo em Inglês | MEDLINE | ID: mdl-38699796

RESUMO

Triazole demonstrates distinctive physicochemical properties, characterized by weak basicity, various dipole moments, and significant dual hydrogen bond acceptor and donor capabilities. These features are poised to play a pivotal role in drug-target interactions. The inherent polarity of triazole contributes to its lower logP, suggesting the potential improvement in water solubility. The metabolic stability of triazole adds additional value to drug discovery. Moreover, the metal-binding capacity of the nitrogen atom lone pair electrons of triazole has broad applications in the development of metal chelators and antifungal agents. This Perspective aims to underscore the unique physicochemical attributes of triazole and its application. A comparative analysis involving triazole isomers and other heterocycles provides guiding insights for the subsequent design of triazoles, with the hope of offering valuable considerations for designing other heterocycles in medicinal chemistry.


Assuntos
Química Farmacêutica , Triazóis , Triazóis/química , Triazóis/síntese química , Química Farmacêutica/métodos , Humanos , Antifúngicos/química , Antifúngicos/farmacologia , Antifúngicos/síntese química , Solubilidade , Isomerismo , Animais
2.
Int J Mol Sci ; 25(9)2024 Apr 23.
Artigo em Inglês | MEDLINE | ID: mdl-38731811

RESUMO

Recently studied N-(ß-d-glucopyranosyl)-3-aryl-1,2,4-triazole-5-carboxamides have proven to be low micromolar inhibitors of glycogen phosphorylase (GP), a validated target for the treatment of type 2 diabetes mellitus. Since in other settings, the bioisosteric replacement of the 1,2,4-triazole moiety with imidazole resulted in significantly more efficient GP inhibitors, in silico calculations using Glide molecular docking along with unbound state DFT calculations were performed on N-(ß-d-glucopyranosyl)-arylimidazole-carboxamides, revealing their potential for strong GP inhibition. The syntheses of the target compounds involved the formation of an amide bond between per-O-acetylated ß-d-glucopyranosylamine and the corresponding arylimidazole-carboxylic acids. Kinetics experiments on rabbit muscle GPb revealed low micromolar inhibitors, with the best inhibition constants (Kis) of ~3-4 µM obtained for 1- and 2-naphthyl-substituted N-(ß-d-glucopyranosyl)-imidazolecarboxamides, 2b-c. The predicted protein-ligand interactions responsible for the observed potencies are discussed and will facilitate the structure-based design of other inhibitors targeting this important therapeutic target. Meanwhile, the importance of the careful consideration of ligand tautomeric states in binding calculations is highlighted, with the usefulness of DFT calculations in this regard proposed.


Assuntos
Inibidores Enzimáticos , Glicogênio Fosforilase , Imidazóis , Simulação de Acoplamento Molecular , Cinética , Coelhos , Animais , Inibidores Enzimáticos/química , Inibidores Enzimáticos/farmacologia , Inibidores Enzimáticos/síntese química , Glicogênio Fosforilase/antagonistas & inibidores , Glicogênio Fosforilase/metabolismo , Glicogênio Fosforilase/química , Imidazóis/química , Imidazóis/síntese química , Imidazóis/farmacologia , Simulação por Computador , Relação Estrutura-Atividade , Triazóis/química , Triazóis/farmacologia , Triazóis/síntese química
3.
Bioorg Chem ; 147: 107363, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38657527

RESUMO

Environment-benign, multicomponent synthetic methodologies are vital in modern pharmaceutical research and facilitates multi-targeted drug development via synergistic approach. Herein, we reported green and efficient synthesis of pyrano[2,3-c]pyrazole fused spirooxindole linked 1,2,3-triazoles using a tea waste supported copper catalyst (TWCu). The synthetic approach involves a one-pot, five-component reaction using N-propargylated isatin, hydrazine hydrate, ethyl acetoacetate, malononitrile/ethyl cyanoacetate and aryl azides as model substrates. Mechanistically, the reaction was found to proceed via in situ pyrazolone formation followed by Knoevenagel condensation, azide alkyne cycloaddition and Michael's addition reactions. The molecules were developed using structure-based drug design. The primary goal is to identifying anti-oxidant molecules with potential ability to modulate α-amylase and DPP4 (dipeptidyl-peptidase 4) activity. The anti-oxidant analysis, as determined via DPPH, suggested that the synthesized compounds, A6 and A10 possessed excellent anti-oxidant potential compared to butylated hydroxytoluene (BHT). In contrast, compounds A3, A5, A8, A9, A13, A15, and A18 were found to possess comparable anti-oxidant potential. Among these, A3 and A13 possessed potential α-amylase inhibitory activity compared to the acarbose, and A3 further emerged as dual inhibitors of both DPP4 and α-amylase with anti-oxidant potential. The relationship of functionalities on their anti-oxidant and enzymatic inhibition was explored in context to their SAR that was further corroborated using in silico techniques and enzyme kinetics.


Assuntos
Antioxidantes , Dipeptidil Peptidase 4 , Hipoglicemiantes , Pirazóis , Triazóis , alfa-Amilases , Pirazóis/química , Pirazóis/farmacologia , Pirazóis/síntese química , Antioxidantes/farmacologia , Antioxidantes/química , Antioxidantes/síntese química , Triazóis/química , Triazóis/farmacologia , Triazóis/síntese química , Hipoglicemiantes/química , Hipoglicemiantes/farmacologia , Hipoglicemiantes/síntese química , Relação Estrutura-Atividade , alfa-Amilases/antagonistas & inibidores , alfa-Amilases/metabolismo , Dipeptidil Peptidase 4/metabolismo , Estrutura Molecular , Humanos , Relação Dose-Resposta a Droga , Inibidores da Dipeptidil Peptidase IV/química , Inibidores da Dipeptidil Peptidase IV/farmacologia , Inibidores da Dipeptidil Peptidase IV/síntese química , Simulação de Acoplamento Molecular , Picratos/antagonistas & inibidores , Compostos de Espiro/química , Compostos de Espiro/farmacologia , Compostos de Espiro/síntese química , Oxindóis/farmacologia , Oxindóis/química , Oxindóis/síntese química , Benzopiranos , Nitrilas
4.
J Am Chem Soc ; 146(18): 12672-12680, 2024 May 08.
Artigo em Inglês | MEDLINE | ID: mdl-38683141

RESUMO

A bioconjugation strategy is reported that allows the derivatization of tyrosine side chains through triazolinedione-based "Y-clicking". Blocked triazolinedione reagents were developed that, in contrast to classical triazolinedione reagents, can be purified before use, can be stored for a long time, and allow functionalization with a wider range of cargoes and labels. These reagents are bench-stable at room temperature but steadily release highly reactive triazolinediones upon heating to 40 °C in buffered media at physiological pH, showing a sharp temperature response over the 0 to 40 °C range. This conceptually interesting strategy, which is complementary to existing photo- or electrochemical bioorthogonal bond-forming methods, not only avoids the classical synthesis and handling difficulties of these highly reactive click-like reagents but also markedly improves the selectivity profile of the tyrosine conjugation reaction itself. It avoids oxidative damage and "off-target" tryptophan labeling, and it even improves site-selectivity in discriminating between different tyrosine side chains on the same protein or different polypeptide chains. In this research article, we describe the stepwise development of these reagents, from their short and modular synthesis to small-molecule model bioconjugation studies and proof-of-principle bioorthogonal chemistry on peptides and proteins.


Assuntos
Triazóis , Tirosina , Tirosina/química , Triazóis/química , Triazóis/síntese química , Temperatura , Química Click , Estrutura Molecular
5.
Bioorg Med Chem ; 105: 117727, 2024 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-38669736

RESUMO

The human phosphatidylinositol 4-phosphate 5-kinase type I α (hPIP5K1α) plays a key role in the development of prostate cancer. In this work, seventeen derivatives of the natural diterpene totarol were prepared by copper(I)-catalysed Huisgen 1,3-dipolar cycloaddition reaction of the correspondingO-propargylated totarol with aryl or alkyl azides and screened for their inhibitory activities toward hPIP5K1α. Five compounds, 3a, 3e, 3f, 3i, and 3r, strongly inhibited the enzyme activity with IC50 values of 1.44, 0.46, 1.02, 0.79, and 3.65 µM, respectively, with the most potent inhibitor 3e 13-[(1-(3-nitrophenyl)triazol-4yl)methoxy]-totara-8,11,13-triene). These compounds were evaluated on their antiproliferative effects in a panel of prostate cancer cell lines. Compound 3r inhibited the proliferation of LNCaP, PC3 and DU145 cells at 20 µM, strongly, but also has strong cytotoxic effects on all tested cells.


Assuntos
Antineoplásicos , Proliferação de Células , Ensaios de Seleção de Medicamentos Antitumorais , Fosfotransferases (Aceptor do Grupo Álcool) , Triazóis , Humanos , Triazóis/química , Triazóis/farmacologia , Triazóis/síntese química , Proliferação de Células/efeitos dos fármacos , Relação Estrutura-Atividade , Antineoplásicos/farmacologia , Antineoplásicos/química , Antineoplásicos/síntese química , Linhagem Celular Tumoral , Estrutura Molecular , Diterpenos/farmacologia , Diterpenos/química , Diterpenos/síntese química , Relação Dose-Resposta a Droga , Neoplasias da Próstata/tratamento farmacológico , Neoplasias da Próstata/patologia , Masculino , Inibidores de Proteínas Quinases/farmacologia , Inibidores de Proteínas Quinases/química , Inibidores de Proteínas Quinases/síntese química , Simulação de Acoplamento Molecular
6.
Bioorg Chem ; 147: 107312, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38599053

RESUMO

A series of water-soluble PEGylated 1,2,4-triazoles 5-8 were successfully synthesized from methyl 5-(chloromethyl)-1-aryl-1H-1,2,4-triazole-3-carboxylates 1. All of the water-soluble PEGylated 1,2,4-triazoles were characterized by FT-IR and 1H NMR spectroscopy. The solubility, in vitro plasma stability, and anti-inflammatory activity were also determined and compared to original methyl 5-(halomethyl)-1-aryl-1H-1,2,4-triazole-3-carboxylates. For SAR study, all PEGylated 1,2,4-triazoles 5-8 performed potential anti-inflammatory activity on LPS-induced RAW 264.7 cells (IC50 = 3.42-7.81 µM). Moreover, the western blot result showed PEGylated 1,2,4-triazole 7d performed 5.43 and 2.37 folds inhibitory activity over iNOS and COX-2 expressions. On the other hand, the cell viability study revealed PEGylated 1,2,4-triazoles 7 and 8 with PEG molecular weight more than 600 presented better cell safety (cell viability > 95 %). Through the solubility and in vitro plasma stability studies, PEGylated 1,2,4-triazoles 7a-d exhibited higher hydrophilicity and prolonged 2.01 folds of half-life in compound 7d. Furthermore, the in vivo anti-inflammatory and gastric safety results indicated PEGylated 1,2,4-triazole 7d more effectively decreased the inflammatory response in edema and COX-2 expression and exhibited higher gastric safety than Indomethacin. Following the in vitro and in vivo study results, PEGylated 1,2,4-triazole 7d possessed favorable solubility, plasma stability features, safety, and significant anti-inflammatory activity to become the potential water-soluble anti-inflammatory candidate.


Assuntos
Polietilenoglicóis , Solubilidade , Triazóis , Água , Triazóis/química , Triazóis/farmacologia , Triazóis/síntese química , Animais , Camundongos , Água/química , Polietilenoglicóis/química , Relação Estrutura-Atividade , Edema/tratamento farmacológico , Edema/induzido quimicamente , Ciclo-Oxigenase 2/metabolismo , Sobrevivência Celular/efeitos dos fármacos , Células RAW 264.7 , Anti-Inflamatórios/farmacologia , Anti-Inflamatórios/síntese química , Anti-Inflamatórios/química , Estrutura Molecular , Lipopolissacarídeos/farmacologia , Lipopolissacarídeos/antagonistas & inibidores , Ratos , Anti-Inflamatórios não Esteroides/farmacologia , Anti-Inflamatórios não Esteroides/síntese química , Anti-Inflamatórios não Esteroides/química , Masculino , Relação Dose-Resposta a Droga , Carragenina
7.
Bioorg Chem ; 147: 107361, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38613924

RESUMO

Biologically important macromolecule 1, 1', 3, 3' Bis - [2,3,5,6-Tetramethyl-p-phenylenebis(methylene)] dibenzotriazlinium dibromide hydrate (BTD) was synthesized and characterized using FT-IR, NMR and single-crystal XRD (SCXRD). SCXRD revealed that the compound was crystallized as a monoclinic system and associated through weak intermolecular interactions like H-bonding and π- π stacking interactions. These weak intermolecular interactions in BTD were studied using Crystal Explorer and Gaussian. The calculated energies for the Highest Occupied Molecular Orbital (HOMO) and the Lowest Unoccupied Molecular Orbital (LUMO) showed the stability and reactivity of the title compound. Molecular electrostatic potential (MEP) surface analysis was used to investigate the crystal's nucleophilic and electrophilic reactive sites. The molecular shape and intermolecular interactions in the crystal structure were determined using Hirshfeld surface analysis and fingerprint plots. Anticancer, anti-bacterial and DNA binding ability of BTD were investigated by experimental and theoretical techniques. The obtained results suggest that BTD possesses better anti-cancer, anti-bacterial and DNA binding abilities. The mode of action of antibiotic and anticancer approach was discussed. This provides promising therapeutic advantages for further development.


Assuntos
Antineoplásicos , Antituberculosos , DNA , Simulação de Acoplamento Molecular , Triazóis , Antineoplásicos/farmacologia , Antineoplásicos/química , Antineoplásicos/síntese química , Triazóis/química , Triazóis/farmacologia , Triazóis/síntese química , Humanos , Ligantes , Antituberculosos/farmacologia , Antituberculosos/química , Antituberculosos/síntese química , Estrutura Molecular , DNA/química , DNA/metabolismo , Relação Estrutura-Atividade , Compostos Macrocíclicos/química , Compostos Macrocíclicos/farmacologia , Compostos Macrocíclicos/síntese química , Testes de Sensibilidade Microbiana , Relação Dose-Resposta a Droga , Ensaios de Seleção de Medicamentos Antitumorais , Mycobacterium tuberculosis/efeitos dos fármacos , Proliferação de Células/efeitos dos fármacos , Antibacterianos/farmacologia , Antibacterianos/química , Antibacterianos/síntese química
8.
Sci Rep ; 14(1): 9223, 2024 04 22.
Artigo em Inglês | MEDLINE | ID: mdl-38649732

RESUMO

A series of 20 novel gefitinib derivatives incorporating the 1,2,3-triazole moiety were designed and synthesized. The synthesized compounds were evaluated for their potential anticancer activity against EGFR wild-type human non-small cell lung cancer cells (NCI-H1299, A549) and human lung adenocarcinoma cells (NCI-H1437) as non-small cell lung cancer. In comparison to gefitinib, Initial biological assessments revealed that several compounds exhibited potent anti-proliferative activity against these cancer cell lines. Notably, compounds 7a and 7j demonstrated the most pronounced effects, with an IC50 value of 3.94 ± 0.17 µmol L-1 (NCI-H1299), 3.16 ± 0.11 µmol L-1 (A549), and 1.83 ± 0.13 µmol L-1 (NCI-H1437) for 7a, and an IC50 value of 3.84 ± 0.22 µmol L-1 (NCI-H1299), 3.86 ± 0.38 µmol L-1 (A549), and 1.69 ± 0.25 µmol L-1 (NCI-H1437) for 7j. These two compounds could inhibit the colony formation and migration ability of H1299 cells, and induce apoptosis in H1299 cells. Acute toxicity experiments on mice demonstrated that compound 7a exhibited low toxicity in mice. Based on these results, it is proposed that 7a and 7j could potentially be developed as novel drugs for the treatment of lung cancer.


Assuntos
Antineoplásicos , Apoptose , Proliferação de Células , Gefitinibe , Neoplasias Pulmonares , Triazóis , Humanos , Neoplasias Pulmonares/tratamento farmacológico , Neoplasias Pulmonares/patologia , Gefitinibe/farmacologia , Triazóis/farmacologia , Triazóis/química , Triazóis/síntese química , Apoptose/efeitos dos fármacos , Animais , Antineoplásicos/farmacologia , Antineoplásicos/química , Antineoplásicos/síntese química , Camundongos , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Carcinoma Pulmonar de Células não Pequenas/tratamento farmacológico , Carcinoma Pulmonar de Células não Pequenas/patologia , Ensaios Antitumorais Modelo de Xenoenxerto , Células A549 , Relação Estrutura-Atividade
9.
Chembiochem ; 25(10): e202400150, 2024 May 17.
Artigo em Inglês | MEDLINE | ID: mdl-38554039

RESUMO

1,2,3-triazole is an important building block in organic chemistry. It is now well known as a bioisostere for various functions, such as the amide or the ester bond, positioning it as a key pharmacophore in medicinal chemistry and it has found applications in various fields including life sciences. Attention was first focused on the synthesis of 1,4-disubstituted 1,2,3-triazole molecules however 1,4,5-trisubstituted 1,2,3-triazoles have now emerged as valuable molecules due to the possibility to expand the structural modularity. In the last decade, methods mainly derived from the copper(I)-catalyzed azide-alkyne cycloaddition (CuAAC) reaction have been developed to access halo-triazole compounds and have been applied to nucleosides, carbohydrates, peptides and proteins. In addition, late-stage modification of halo-triazole derivatives by metal-mediated cross-coupling or halo-exchange reactions offer the possibility to access highly functionalized molecules that can be used as tools for chemical biology. This review summarizes the synthesis, the functionalization, and the applications of 1,4,5-trisubstituted halo-1,2,3-triazoles in biologically relevant molecules.


Assuntos
Reação de Cicloadição , Triazóis , Triazóis/química , Triazóis/síntese química , Cobre/química , Catálise , Azidas/química , Alcinos/química , Alcinos/síntese química , Proteínas/química , Peptídeos/química , Peptídeos/síntese química , Química Click , Nucleosídeos/química , Nucleosídeos/síntese química , Carboidratos/química , Carboidratos/síntese química
10.
Chembiochem ; 25(9): e202300837, 2024 May 02.
Artigo em Inglês | MEDLINE | ID: mdl-38477021

RESUMO

Dipeptides of a new structure based on ß-triazolalanines and (L)-α-amino acids were synthesized and optimal conditions were developed that ensure both chemical and optical purity of the final products. Molecular docking was carried out and possible intermolecular interactions of dipeptides with potential targets were established. Based on these studies, the analgesic property of chosen dipeptides was studied and it was found that some compounds possess revealed antinociceptive activity in the tail-flick test.


Assuntos
Analgésicos , Dipeptídeos , Simulação de Acoplamento Molecular , Triazóis , Analgésicos/química , Analgésicos/farmacologia , Analgésicos/síntese química , Triazóis/química , Triazóis/farmacologia , Triazóis/síntese química , Dipeptídeos/química , Dipeptídeos/síntese química , Dipeptídeos/farmacologia , Animais , Camundongos , Masculino
11.
Chem Biodivers ; 21(5): e202400389, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38457745

RESUMO

A very interesting foundation for this study is the creation of new methods for modifying compounds with a 1,2,3-triazole and chalcone scaffolds, as these compounds are significant in organic synthesis, particularly in the synthesis of bioactive organic compounds. To contribute to the development of an efficient method for the conversion of antimicrobial and antituberculosis heterocyclics, a novel series of cyclohepta pyridinone fused 1,2,3-triazolyl chalcones were designed and synthesized. All the newly prepared scaffolds were characterized by FT-IR, NMR (1H & 13C) and mass spectrometry. Among the tested compounds, hybrids 8b, 8d, and 8f exhibited exceptional antibacterial susceptibilities with zone of inhibition 27.84±0.04, 32.27±0.02, and 38.26±0.01 mm against the tested E. faecalis bacteria, whereas 8d had better antitubercular potency against M. tuberculosis H37Rv strain with MIC value 5.25 µg/mL, compared to Streptomycin [MIC=5.01 µg/mL]. All the synthesized compounds were initially assessed in silico against the targeted protein i. e., DprE1 that indicated compound 8d, 8f and 8h along with several other 1,2,3-triazole compounds as possible inhibitors. Based on docking results, 8d showed that the amino acids His74(A), Lys76(A), Cys332(A), Asp331(A), Val307(A), Tyr357(A), Met226(A), Gln276(A), Gly75(A), Peo58(A), Leu259(A), and Lys309(A) exhibited highly stable binding to DprE1 receptor of Mycobacterium tuberculosis (PDB: 4G3 U). Moreover, these scaffolds physicochemical characteristics, filtration molecular properties, assessment of toxicity, and bioactivity scores were assessed in relation to ADME (absorption, distribution, metabolism, and excretion).


Assuntos
Antituberculosos , Desenho de Fármacos , Testes de Sensibilidade Microbiana , Simulação de Acoplamento Molecular , Mycobacterium tuberculosis , Triazóis , Antituberculosos/farmacologia , Antituberculosos/síntese química , Antituberculosos/química , Mycobacterium tuberculosis/efeitos dos fármacos , Triazóis/química , Triazóis/farmacologia , Triazóis/síntese química , Relação Estrutura-Atividade , Enterococcus faecalis/efeitos dos fármacos , Estrutura Molecular , Chalcona/química , Chalcona/farmacologia , Chalcona/síntese química , Chalconas/química , Chalconas/farmacologia , Chalconas/síntese química
12.
Chem Biodivers ; 21(5): e202302064, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38390665

RESUMO

Based on our previous research, a 3D-QSAR model (q2=0.51, ONC=5, r2=0.982, F=271.887, SEE=0.052) was established to predict the inhibitory effects of triazole Schiff base compounds on Fusarium graminearum, and its predictive ability was also confirmed through the statistical parameters. According to the results of the model design, 30 compounds with superior bioactivity compared to the template molecule 4 were obtained. Seven of these compounds (DES2-6, DES9-10) with improved biological activity and readily available raw materials were successfully synthesized. Their structures were confirmed through HRMS, NMR, and single crystal X-ray diffraction analysis (DES-5). The bioactivity of the final products was investigated through an in vitro antifungal assay. There was little difference in the EC50 values between the experimental and predicted values of the model, demonstrating the reliability of the model. Especially, DES-3 (EC50=9.915 mg/L) and DES-5 (EC50=9.384 mg/L) exhibited better inhibitory effects on Fusarium graminearum compared to the standard drug (SD) triadimenol (EC50=10.820 mg/L). These compounds could serve as potential new fungicides for future research. The interaction between the final products and isocitrate lyase (ICL) was investigated through molecular docking. Compounds with R groups that have a higher electron-donating capacity were found to be biologically active.


Assuntos
Antifúngicos , Fusarium , Testes de Sensibilidade Microbiana , Relação Quantitativa Estrutura-Atividade , Bases de Schiff , Triazóis , Bases de Schiff/química , Bases de Schiff/farmacologia , Bases de Schiff/síntese química , Triazóis/química , Triazóis/farmacologia , Triazóis/síntese química , Antifúngicos/farmacologia , Antifúngicos/síntese química , Antifúngicos/química , Fusarium/efeitos dos fármacos , Estrutura Molecular , Simulação de Acoplamento Molecular
13.
Chem Biodivers ; 21(5): e202400316, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38422224

RESUMO

New 1H-1,2,4-triazolyl derivatives were synthesized, and six of them were selected based on docking prediction for the investigation of their antimicrobial activity against five bacterial and eight fungal strains. All compounds demonstrated antibacterial activity with MIC lower than that of the ampicillin and chloramphenicol. In general, the most sensitive bacteria appeared to be P. fluorescens, while the plant pathogen X. campestris was the most resistant. The antifungal activity of the compounds was much better than the antibacterial activity. All compounds were more potent (6 to 45 times) than reference drugs ketoconazole and bifonazole with the best activity achieved by compound 4 a. A. versicolor, A. ochraceus, A.niger, and T.viride showed the highest sensitivity to compound 4 b, while, T. viride, P. funiculosum, and P.ochrochloron showed good sensitivity to compound 4 a. Molecular docking studies suggest that the probable mechanism of antibacterial activity involves the inhibition of the MurB enzyme of E. coli, while CYP51 of C. albicans appears to be involved in the mechanism of antifungal activity. It is worth mentioning that none of the tested compounds violated Lipinski's rule of five.


Assuntos
Antibacterianos , Antifúngicos , Testes de Sensibilidade Microbiana , Simulação de Acoplamento Molecular , Triazóis , Triazóis/química , Triazóis/farmacologia , Triazóis/síntese química , Antifúngicos/farmacologia , Antifúngicos/química , Antifúngicos/síntese química , Relação Estrutura-Atividade , Antibacterianos/farmacologia , Antibacterianos/química , Antibacterianos/síntese química , Fungos/efeitos dos fármacos , Bactérias/efeitos dos fármacos , Estrutura Molecular , Relação Dose-Resposta a Droga , Escherichia coli/efeitos dos fármacos , Anti-Infecciosos/farmacologia , Anti-Infecciosos/química , Anti-Infecciosos/síntese química
14.
Bioorg Chem ; 130: 106261, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-36399866

RESUMO

In this work, we have investigated the one pot strategy for the Cu(I)-mediated synthesis of new triazoles bearing nitroindazole moieties using different copper catalysts. The biological activity of newly synthesized nitroindazolyltriazoles towards Alzheimer's disease-related targets, namely cholinesterases, monoamine oxidases, and amyloid aggregation, were investigated. Predictions of target affinity, physicochemical parameters, gastrointestinal absorption and brain penetration were achieved by means of in silico tools.


Assuntos
Doença de Alzheimer , Indazóis , Triazóis , Doença de Alzheimer/tratamento farmacológico , Proteínas Amiloidogênicas , Encéfalo , Colinesterases , Monoaminoxidase , Indazóis/síntese química , Triazóis/síntese química , Cobre/química , Catálise
15.
Pak J Pharm Sci ; 35(1(Supplementary)): 209-217, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-35228179

RESUMO

1,2,4-triazoles are a major group of heterocyclic compounds. In the current work, a concise library of such triazoles synthesized through a multistep protocol. The synthesis involved hydrazinolysis of ethyl-2-(p-Cl-phenoxy) acetate followed by reflux with phenyl isothiocyanate to yield the intermediate 2-[2-(p-Cl-phenoxy)acetyl)-N-phenyl-hydrazinecarbothioamide. This intermediate was then cyclized to form 5-[p-(Cl-phenoxy)-methyl]-4-phenyl-4H-1,2,4-triazole-3-thiol (the parent moiety) at alkaline pH. In parallel, 3-bromopropionyl bromide was reacted with a series of phenylamines to yield N-(substituted-phenyl)bromopropanamides. In the final step, N-substitution of 5-[p-(Cl-phenoxy)-methyl]-4- phenyl-4H-1,2,4-triazole-3-thiol was carried out with N-(substituted-phenyl)bromopropanamides to give desired library of 3-[5-[(p-Cl-phenoxy)-methyl]-4- phenyl-4H-1,2,4-triazole-3-ylthio]-N-(substituted-phenyl) propan-amides (8a-l). The prepared moieties were identified via IR, NMR, & EIMS and evaluated for urease and anti-proliferative activities. 3-[5-[(p-Cl-phenoxy)-methyl]-4- phenyl-4H-1,2,4-triazole-3-ylthio]-N-(3-methyl-phenyl)propanamide 8k, was found to be most prominent hit as urease inhibitor (IC50= 42.57± 0.13 µM) using thiourea as standard (IC50= 21.25±0.15µM). The interaction of 8k with urease were studied using docking studies. Anti-proliferative activity results showed 8k as promising candidates and rest of the synthesized derivatives were found to be moderately anti-proliferative. Molecular docking results also displayed 8k, 8h, and 8c as potential hits for further study.


Assuntos
Antineoplásicos/síntese química , Antineoplásicos/farmacologia , Proliferação de Células/efeitos dos fármacos , Triazóis/síntese química , Triazóis/farmacologia , Urease/antagonistas & inibidores , Células HCT116 , Humanos , Modelos Moleculares , Simulação de Acoplamento Molecular , Estrutura Molecular , Conformação Proteica , Urease/química
16.
Bioorg Med Chem Lett ; 61: 128590, 2022 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-35108623

RESUMO

Neuraminidase (NA) is an ideal target for the development of anti-influenza drugs. In this paper, ZINC06057848 was screened out as a hit compound by docking-based virtual screening and molecular dynamics (MD) simulation. The modification and optimization of hit ZINC06057848 resulted in the discovery of a series of novel 1,3,4-triazole-containing NA inhibitors (5a-5j). Compound 5c exerts the best inhibitory activity (IC50 = 0.11 µM) against NA, which is comparable to the positive control oseltamivir carboxylate (OSC) (IC50 = 0.10 µM). Molecular docking analysis indicates that the good efficacy of inhibitor 5c may be attributed to the furan and triazole rings extending into 430-cavity and the ethylbenzene part occupying the active site. The results of this work may help in the development of new NA inhibitors.


Assuntos
Acetamidas/farmacologia , Desenho de Fármacos , Inibidores Enzimáticos/farmacologia , Neuraminidase/antagonistas & inibidores , Triazóis/farmacologia , Acetamidas/síntese química , Acetamidas/química , Relação Dose-Resposta a Droga , Avaliação Pré-Clínica de Medicamentos , Inibidores Enzimáticos/síntese química , Inibidores Enzimáticos/química , Humanos , Estrutura Molecular , Neuraminidase/metabolismo , Relação Estrutura-Atividade , Triazóis/síntese química , Triazóis/química
17.
J Enzyme Inhib Med Chem ; 37(1): 527-530, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-35220840

RESUMO

The advent of proteolysis-targeting chimaeras (PROTACs) mandates that new ligands for the recruitment of E3 ligases are discovered. The traditional immunomodulatory drugs (IMiDs) such as thalidomide and its analogues (all based on the phthalimide glutarimide core) bind to Cereblon, the substrate receptor of the CRL4ACRBN E3 ligase. We designed a thalidomide analogue in which the phthalimide moiety was replaced with benzotriazole, using an innovative synthesis strategy. Compared to thalidomide, the resulting "benzotriazolo thalidomide" has a similar binding mode, but improved properties, as revealed in crystallographic analyses, affinity assays and cell culture.


Assuntos
Antineoplásicos/farmacologia , Inibidores Enzimáticos/farmacologia , Triazóis/farmacologia , Ubiquitina-Proteína Ligases/antagonistas & inibidores , Antineoplásicos/síntese química , Antineoplásicos/química , Apoptose/efeitos dos fármacos , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Sobrevivência Celular/efeitos dos fármacos , Relação Dose-Resposta a Droga , Ensaios de Seleção de Medicamentos Antitumorais , Inibidores Enzimáticos/síntese química , Inibidores Enzimáticos/química , Humanos , Estrutura Molecular , Relação Estrutura-Atividade , Triazóis/síntese química , Triazóis/química , Ubiquitina-Proteína Ligases/metabolismo
18.
Molecules ; 27(3)2022 Jan 25.
Artigo em Inglês | MEDLINE | ID: mdl-35164037

RESUMO

Aseries of novel 1,4-disubstituted 1,2,3-triazoles were synthesized from an (R)-carvone terminal alkyne derivative via a Cu (I)-catalyzed azide-alkyne cycloaddition reaction using CuSO4,5H2O as the copper (II) source and sodium ascorbate as a reducing agent which reduces Cu (II) into Cu (I). All the newly synthesized 1,2,3-triazoles 9a-h were fully identified on the basis of their HRMS and NMR spectral data and then evaluated for their cell growth inhibition potential by MTS assay against HT-1080 fibrosarcoma, A-549 lung carcinoma, and two breast adenocarcinoma (MCF-7 and MDA-MB-231) cell lines. Compound 9d showed notable cytotoxic effects against the HT-1080 and MCF-7 cells with IC50 values of 25.77 and 27.89 µM, respectively, while compound 9c displayed significant activity against MCF-7 cells with an IC50 value of 25.03 µM. Density functional calculations at the B3LYP/6-31G* level of theory were used to confirm the high reactivity of the terminal alkyne as a dipolarophile. Quantum calculations were also used to investigate the mechanism of both the uncatalyzed and copper (I)-catalyzed azide-alkyne cycloaddition reaction (CuAAC). The catalyzed reaction gives complete regioselectivity via a stepwise mechanism streamlining experimental observations. The calculated free-energy barriers 4.33 kcal/mol and 29.35 kcal/mol for the 1,4- and 1,5-regioisomers, respectively, explain the marked regioselectivity of the CuAAC reaction.


Assuntos
Monoterpenos Cicloexânicos/química , Triazóis/química , Espectroscopia de Ressonância Magnética Nuclear de Carbono-13 , Linhagem Celular Tumoral , Reação de Cicloadição , Monoterpenos Cicloexânicos/farmacologia , Teoria da Densidade Funcional , Ensaios de Seleção de Medicamentos Antitumorais , Humanos , Técnicas In Vitro , Espectroscopia de Prótons por Ressonância Magnética , Triazóis/síntese química , Triazóis/farmacologia
19.
Molecules ; 27(3)2022 Feb 02.
Artigo em Inglês | MEDLINE | ID: mdl-35164286

RESUMO

Ultrasound- and microwave-assisted green synthetic strategies were applied to furnish benzofuran-oxadiazole 5a-g and benzofuran-triazole 7a-h derivatives in good to excellent yields (60-96%), in comparison with conventional methods (36-80% yield). These synthesized derivatives were screened for hemolysis, thrombolysis and anticancer therapeutic potential against an A549 lung cancer cell line using an MTT assay. Derivatives 7b (0.1%) and 5e (0.5%) showed the least toxicity against RBCs. Hybrid 7f showed excellent thrombolysis activity (61.4%) when compared against reference ABTS. The highest anticancer activity was displayed by the 5d structural hybridwith cell viability 27.49 ± 1.90 and IC50 6.3 ± 0.7 µM values, which were considerably lower than the reference drug crizotinib (IC50 8.54 ± 0.84 µM). Conformational analysis revealed the spatial arrangement of compound 5d, which demonstrated its significant potency in comparison with crizotinib; therefore, scaffold 5d would be a promising anticancer agent on the basis of cytotoxicity studies, as well as in silico modeling studies.


Assuntos
Antineoplásicos/farmacologia , Benzofuranos/farmacologia , Oxidiazóis/farmacologia , Triazóis/farmacologia , Células A549 , Antineoplásicos/síntese química , Antineoplásicos/química , Benzofuranos/síntese química , Benzofuranos/química , Sobrevivência Celular/efeitos dos fármacos , Técnicas de Química Sintética , Hemólise/efeitos dos fármacos , Humanos , Micro-Ondas , Simulação de Acoplamento Molecular , Neoplasias/tratamento farmacológico , Oxidiazóis/síntese química , Oxidiazóis/química , Triazóis/síntese química , Triazóis/química
20.
J Med Chem ; 65(3): 2571-2592, 2022 02 10.
Artigo em Inglês | MEDLINE | ID: mdl-35060744

RESUMO

Peroxisome proliferator-activator receptors α/δ (PPARα/δ) are regarded as potential therapeutic targets for nonalcoholic steatohepatitis (NASH). However, PPARα/δ dual agonist GFT-505 exhibited poor anti-NASH effects in a phase III clinical trial, probably due to its weak PPARα/δ agonistic activity and poor metabolic stability. Other reported PPARα/δ dual agonists either exhibited limited potency or had unbalanced PPARα/δ agonistic activity. Herein, we report a series of novel triazolone derivatives as PPARα/δ dual agonists. Among them, compound H11 exhibited potent and well-balanced PPARα/δ agonistic activity (PPARα EC50 = 7.0 nM; PPARδ EC50 = 8.4 nM) and a high selectivity over PPARγ (PPARγ EC50 = 1316.1 nM) in PPAR transactivation assays. The crystal structure of PPARδ in complex with H11 revealed a unique PPARδ-agonist interaction. H11, which had excellent PK properties and a good safety profile, showed potent in vivo anti-NASH effects in preclinical models. Together, H11 holds a great promise for treating NASH or other inflammatory and fibrotic diseases.


Assuntos
Anti-Inflamatórios/uso terapêutico , Hepatopatia Gordurosa não Alcoólica/tratamento farmacológico , PPAR alfa/agonistas , PPAR delta/agonistas , Triazóis/uso terapêutico , Animais , Anti-Inflamatórios/síntese química , Anti-Inflamatórios/metabolismo , Anti-Inflamatórios/farmacocinética , Tetracloreto de Carbono , Desenho de Fármacos , Inflamação/tratamento farmacológico , Inflamação/patologia , Fígado/efeitos dos fármacos , Fígado/patologia , Cirrose Hepática/induzido quimicamente , Cirrose Hepática/tratamento farmacológico , Cirrose Hepática/patologia , Masculino , Camundongos Endogâmicos C57BL , Microssomos Hepáticos/efeitos dos fármacos , Estrutura Molecular , Hepatopatia Gordurosa não Alcoólica/patologia , PPAR alfa/metabolismo , PPAR delta/metabolismo , Ratos Sprague-Dawley , Relação Estrutura-Atividade , Triazóis/síntese química , Triazóis/metabolismo , Triazóis/farmacocinética
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