Medicinal Chemistry最新文献

HDAC8 is associated with several disease conditions as well as various cancers of several organs and hematological malignancies. To counter such pathophysiological and disease conditions, inhibition of HDAC8 may be a promising approach for anticancer drug development. In this article, a detail of arylcarboxamide-based potential HDAC8 inhibitors has been outlined. Considering their binding pattern of interactions along with the chemical features, effective and selective novel HDAC8 inhibitors can be designed further. Therefore, modification of these compounds provides greater possibilities for the development of novel HDAC8 inhibitors. Nevertheless, structural modification of such arylcarboxamide derivatives may be able to produce potent dual-inhibitory compounds along with HDAC8 inhibition. Thus, this article is quite useful for exploring and identifying several possibilities for arylcarboxamide-based HDAC8 inhibitors. Moreover, it can be concluded that further study of the arylcarboxamide-based HDAC8 inhibitors can be effectively used for the treatment of different cancerous and non-cancerous diseases.

Indazole, a heterocyclic molecule, has emerged as a useful scaffold in synthetic and medicinal chemistry due to its broad biological activity and ease of synthesis. This article thoroughly analyzes unique synthetic methods used to diversify indazole derivatives, such as metal-catalyzed reactions, ecologically friendly approaches, and novel multicomponent reactions. These advances have increased the efficiency and selectivity of indazole synthesis and its structural variety, paving the path for new biological applications. Furthermore, indazole-based compounds have demonstrated promising biological activities, particularly as anticancer, antibacterial, and anti-inflammatory medicines. This review summarizes the present state of indazole research, focusing on synthetic techniques and biological features that make indazole an attractive target for future drug discovery.

Introduction: A series of novel 2-((3,5-diphenylpyrazin-2-yl)amino)-1-(piperidin-1- yl/pyrrolidin-1-yl)ethanone derivatives (5a-5l) were synthesized and evaluated for their tuberculosis activity using the standard strain H37Rv and two other clinically isolated multidrug-resistant strains with different resistances.

Methods: All compounds 5a-5l showed promising results in tuberculosis activity. Among them, 5g and 5i demonstrated remarkable activity at 5 μg/mL against H37Rv and three other MDR strains. The compounds 5c, 5d, and 5f were sensitive, showing inhibition between 15-25 μg/mL against M. tuberculosis growth. In-silico docking studies were conducted for 5a-5l using the 2FUM protein of M. tuberculosis.

Results: These studies revealed that compounds 5g and 5i exhibited strong interactions with the MTB protein, with binding energies of -9.85 kcal/mol and -10.74 kcal/mol, respectively, and inhibitory concentrations of 0.38 μM and 0.77 μM.

Conclusion: Moreover, these motifs also displayed good binding energy coupled with favorable minimum inhibitory concentrations (MIC).

Cancer is the second leading cause of mortality globally and is characterized by a multifactorial etiology. Drug resistance and multidrug resistance are the reasons for the failure of many anticancer drugs that are in clinical practice now. The current review is a complete review of benzimidazole hybrids with different heterocyclic rings, which are potential anticancer agents. We reviewed around 70 research works of benzimidazole hybrids published in high-impact journals, along with a short discussion of structural features responsible for its activity against various cancers. This review highlighted benzimidazole hybrids as targeted anticancer agents with effects on multiple targets. Researchers working on targeted medications for cancer treatment will benefit from this review when designing new scaffolds with benzimidazole moieties.

Introduction: Liver cancer is considered one of the most common types of cancer and a major cause of ephemerality worldwide having a higher prevalence rate in Asia and sub-Saharan Africa. The alpha-fetoprotein (AFP) is a serum glycoprotein that belongs to a class of oncodevelopmental proteins and is also involved in tumor formation.

Methods: In the current effort, a hybrid approach of virtual screening followed by pharmacophore generation and molecular dynamic simulation analyses were performed. The screened top-ranked 10 docked compounds from the selected anti-cancer compound library were utilized to generate the ligand-based pharmacophore. Virtual screening was performed two-dimensional similarity search against the selected natural compound library based on their physicochemical properties. It was observed that all the compounds from the anti-cancer compound library and natural compound library showed similar binding resides.

Results: Therefore, the top-ranked screened compounds that showed the least binding energy and highest binding affinity against AFP, obtained through the anti-cancer drug library and natural compound library were reported. The molecular docking analyses revealed that Leu-219, His-222, Lys-242, Lys-246, His-316, Glu-318, Ala-366, Val-367, Gly-475, Ile-479, Ala-471, Asp-478 were observed as potential residues for interaction.

Conclusion: The observed results of virtual screening, molecular docking, and MD simulation analyses entail noteworthy observations illustrating that NC002 was a potent inhibitor. The proposed compound NC002 may have potential against liver cancer by targeting AFP based on MD simulation analyses, PCA, and MM-GBSA.

Background: Glioblastoma Multiforme (GBM), a highly aggressive and prevalent brain cancer with a higher incidence in males, has limited treatment success due to drug resistance, inadequate targeting and penetration of cancer cells, and an incomplete understanding of its molecular pathways. GBM is a highly aggressive brain cancer with limited treatment options. This study investigates the anticancer potential of synthesized pyrazole compounds against GBM cells.

Methods: A series of pyrazole derivatives were synthesized and tested for their efficacy against GBM using MTT assays. Molecular docking studies were conducted to explore the binding interactions of these compounds with GBM receptors.

Results: Compounds 3 and 5 demonstrated significant anticancer activity, reducing cell viability more effectively than the control group. MTT assay results confirmed their potency. Molecular docking studies revealed strong binding interactions with GBM receptors, highlighting their potential as anticancer agents.

Conclusion: The study evaluated the anticancer activity of synthesized compounds on human GBM cells, with compounds 3 and 5 showing the most promising results. Pyrazole 3 significantly reduced cell viability at high concentrations, while both pyrazoles 3 and 5 required higher doses to achieve substantial effects, as indicated by their IC₅₀ values. Molecular docking studies confirmed strong binding interactions with the GBM receptor, and the pharmacokinetic properties suggest their potential as anticancer agents. These results highlight compounds 3 and 5 as candidates for further investigation.

Pyrazoline is a 5-membered ring that has two adjacent nitrogen. It has gained advanced attention from medical and organic chemists due to very low cytotoxic activities. It is applicable and more applied in research fields and has various pharmacological activities, including cardiovascular, anti-tumor, and anti-cancer properties. In this review, the main objective is to study the pharmacological aspects of pyrazoline and its derivative analogs. The present synthetic pyrazolines are better scaffolds, which show more biological and medicinal characteristics. These compounds exhibit diverse pharmacological activities, showcasing their potential as promising candidates for cancer therapy. Pyrazolines demonstrate remarkable anti-proliferative and apoptosis-inducing effects on cancer cells, attributed to their distinctive molecular structure. This review highlights the growing significance of pyrazolines in medicinal chemistry, emphasizing their role in designing novel anticancer agents. The multifaceted properties of pyrazolines offer a compelling foundation for further research, driving innovation in the quest for effective and targeted anticancer drugs.

Introduction: Furoxan and benzofuroxan are compounds containing an N-oxide function, known for their diverse pharmacological properties, including antimicrobial and antiinflammatory effects. This study aimed to investigate these activities using an in-house library of N-oxide compounds.

Method: Twenty compounds were tested against both Gram-positive and Gram-negative bacteria, including Cutibacterium acnes (C. acnes), a microorganism implicated in the development of acne vulgaris. One compound, (E)-4-(3-((2-(3-hydroxybenzoyl)hydrazone)methyl)phenoxy)-3- (phenylsulfonyl)-1,2,5-oxadiazol-2-N-oxide (compound 15), exhibited selective antimicrobial activity against C. acnes, with a Minimum Inhibitory Concentration (MIC) value of 2 μg/mL. Indirect measurement of Nitric Oxide (NO) release showed that compound 15 and isosorbide dinitrate, when treated with L-cysteine, produced nitrite levels of 20.1% and 9.95%, respectively. Using a NO scavenger (PTIO) in combination with compound 15 in a culture of C. acnes resulted in reduced antimicrobial activity, indicating that NO release is part of its mechanism of action. Cytotoxicity assessments using murine macrophages showed cellular viability above 70% at concentrations up to 0.78 μg/mL.

Results: Measurements of Interleukin-1 beta (IL1-β) and Tumor Necrosis Factor-alpha (TNF-α) indicated that compound 15 did not reduce the levels of these pro-inflammatory cytokines. Sustained NO production by inducible Nitric Oxide Synthase (iNOS) in macrophages or neutrophils has been found to be involved in the inflammatory process in acne vulgaris and lead to toxicity in surrounding tissues. Nitrite levels in the supernatant of murine macrophages were found to be decreased at a concentration of 0.78 μg/mL of compound 15, indicating an anti-inflammatory effect. In vivo studies were conducted using Balb/c nude mice inoculated subcutaneously with C. acnes. Cream and gel formulations of compound 15 were applied to treat the animals, along with commercially available anti-acne drugs, for 14 days. Animals treated with a cream base containing 5% of compound 15 exhibited less acanthosis with mild inflammatory infiltration compared to other groups, highlighting its anti-inflammatory properties.

Conclusion: Similar results were observed in the benzoyl peroxide group, demonstrating that compound 15 presented comparable anti-inflammatory activity to the FDA-approved drug. These promising results suggest that compound 15 has a dual mechanism of action, with selective antimicrobial activity against C. acnes and notable anti-inflammatory properties, making it a potential prototype for developing new treatments for acne vulgaris.

Background: Ethacrynic acid is a dynamic agent holding alpha-beta unsaturated carbonyl unit in its structure which imparts superiority and extraordinary advantage of displaying multiple biological activities such as anticancer, antiviral, anti-malarial effect, diuretic effect and inhibits the Glutathione-s-transferase p1-1 enzyme which produces hindrance in the pathway of apoptosis. Ethacrynic acid is an inhibitor of Glutathione-s-transferases. EtA by itself act as an anticancer agent at higher concentration and also increases effectiveness of other compounds used in cancer treatment by preventing their detoxification, all these facts attracted our attention to develop and evaluate novel structural analogues of ethacrynic acid for their inhibitory effect on GSTs and anti-cancer activity in breast cancer.

Objective: By attending rational drug design perspectives the research is aimed to develop and evaluate novel structural analogues of ethacrynic acid as Inhibitors of GSTs enzyme and with antibreast cancer activity.

Methods: Designed compounds were synthesized as per convenient route shown in the scheme of synthesis. Molecular docking studies were done against GSTP1-1 (PDB:3HJO). Structures of novel synthesized molecules were confirmed by spectral characterization such as FTIR, ¹HNMR, ¹³CNMR and Mass spectrometry. ADME studies were done to ensure safety and drug like properties of the compounds. Ten structural analogues of ethacrynic acid were synthesized and evaluated for their inhibitory effect on activity of Glutathione-s-transferases which was measured by performing assay method. In-vitro anti-breast cancer activity was done on MCF-7 and MDAMB-231 cell line by MTT assay.

Results: Compound A3, A5 and A6 were found with greater inhibition of the activity of GSTs and maximum anti-proliferative activity in breast cancer.

Conclusion: We have effectively developed novel compounds possessing structural resemblance with ethacrynic acid Compounds of the series has shown moderate to higher inhibitory effect on GSTs and anti-proliferative activity in breast cancer. The compound A3 was found to be promising agent with high level of potency in each biological response. The research studies presented here may be an enlightening path in development of novel therapeutic agents with high level of inhibition in the activity of GSTs and anti-breast cancer effect.

Despite significant progress in oncology therapeutics, cancer remains a leading cause of mortality worldwide. Chronic myeloid leukemia, which accounts for 15% of all adult leukemia cases, is characterized by chromosomal abnormalities involving the fusion of the Bcr and Abl genes to form the Bcr-Abl oncogene. Current drug treatment of the disease involves the use of Bcr-Abl tyrosine kinase inhibitors belonging to the first, second, and third generations. However, the toxicity and resistance associated with the use of imatinib, a first-generation Bcr-Abl inhibitor, in cases where the T315I mutation exists, necessitates the need for new tyrosine kinase inhibitors. This review focuses on recent synthetic compounds that exhibit potential as inhibitors of the Bcr-Abl protein which could be utilized in chemotherapy. Herein, we evaluated and summarized 36 studies published in the last few years that reported on newly synthesized and biologically evaluated novel small molecules with different heterocyclic scaffolds as Bcr-Abl tyrosine kinase inhibitors. The intricacy of the structure of newly synthesized compounds and the fact that each compound contains more than one scaffold makes it difficult to infer the potentially active core or scaffold. However, investigating different combined scaffolds enhances the chance of successfully developing novel drug candidates. Overall, the information provided in this review can be beneficial to researchers with an interest in chronic myeloid leukemia and tyrosine kinase inhibitors.