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Bhat RM, Hegde V, Budagumpi S, Adimule V, Keri RS. Benzimidazole-Oxadiazole Hybrids-Development in Medicinal Chemistry: An Overview. Chem Biol Drug Des 2024; 104:e14609. [PMID: 39155152 DOI: 10.1111/cbdd.14609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 07/22/2024] [Accepted: 08/05/2024] [Indexed: 08/20/2024]
Abstract
To increase the success rate of drug discovery, one practical strategy is to begin molecular hybridisation. The presence of two or more pharmacophores in a single unit leads to a pharmacological potency greater than the sum of each individual moiety's potency. Heterocyclic compounds are very widely distributed in nature and are essential for life activities. Benzimidazole and oxadiazole are privileged structures in medicinal chemistry and are widely used in drug discovery and development due to their vast biological properties. The drug-like properties (like pharmacokinetics and pharmacodynamics) of the individual scaffolds can be improved by benzimidazole-oxadiazole chimeric molecules via a molecular hybridisation approach. Benzimidazole and oxadiazole cores can either be fused or incorporated using either functional groups/bonds. Over the last few decades, drug discovery scientists have predicted that these moieties could be interconnected to yield a novel or modified hybrid compound. Benzimidazole and oxadiazole hybrids were identified as the most potent anticancer, antimicrobial, anti-inflammatory, antioxidant, anticonvulsant, antidepressant, antihypertensive and antitubercular agents. In this context, the present review describes the biological properties of benzimidazole-oxadiazole (1,3,4 and 1,2,4) hybrids, their possible structure-activity relationship and the mechanism of action studies presented. This review article is intended to stimulate fresh ideas in the search for rational designs of more active and less toxic benzimidazole-oxadiazole hybrid prospective therapeutic candidates, as well as more effective diagnostic agents and pathologic probes.
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Affiliation(s)
- Raveendra Madhukar Bhat
- Centre for Nano and Material Sciences, Jain (Deemed-To-Be University), Bangalore, Karnataka, India
- Aurigene Pharmaceutical Services, Bangalore, Karnataka, India
| | - Venkatraman Hegde
- Centre for Nano and Material Sciences, Jain (Deemed-To-Be University), Bangalore, Karnataka, India
- Aurigene Pharmaceutical Services, Bangalore, Karnataka, India
| | - Srinivasa Budagumpi
- Centre for Nano and Material Sciences, Jain (Deemed-To-Be University), Bangalore, Karnataka, India
| | - Vinayak Adimule
- Angadi Institute of Technology and Management (AITM), Belagavi, Karnataka, India
| | - Rangappa S Keri
- Centre for Nano and Material Sciences, Jain (Deemed-To-Be University), Bangalore, Karnataka, India
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2
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Bagratee T, Prawlall R, Ndlovu T, Sibisi S, Ndadane S, Shaik BB, Palkar MB, Gampa R, Karpoormath R. Exploring the Recent Pioneering Developments of Small Molecules in Antimalarial Drug Armamentarium: A Chemistry Prospective Appraisal. Chem Biodivers 2024; 21:e202400460. [PMID: 38759144 DOI: 10.1002/cbdv.202400460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 05/13/2024] [Accepted: 05/16/2024] [Indexed: 05/19/2024]
Abstract
Malaria is a very destructive and lethal parasitic disease that causes significant mortality worldwide, resulting in the loss of millions of lives annually. It is an infectious disease transmitted by mosquitoes, which is caused by different species of the parasite protozoan belonging to the genus Plasmodium. The uncontrolled intake of antimalarial drugs often employed in clinical settings has resulted in the emergence of numerous strains of plasmodium that are resistant to these drugs, including multidrug-resistant strains. This resistance significantly diminishes the effectiveness of many primary drugs used in the treatment of malaria. Hence, there is an urgent need for developing unique classes of antimalarial drugs that function with distinct mechanisms of action. In this context, the design and development of hybrid compounds that combine pharmacophoric properties from different lead molecules into a single unit gives a unique perspective towards further development of malaria drugs in the next generation. In recent years, the field of medicinal chemistry has made significant efforts resulting in the discovery and synthesis of numerous small novel compounds that exhibit potent antimalarial properties, while also demonstrating reduced toxicity and desirable efficacy. In light of this, we have reviewed the progress of hybrid antimalarial agents from 2021 up to the present. This manuscript presents a comprehensive overview of the latest advancements in the medicinal chemistry pertaining to small molecules, with a specific focus on their potential as antimalarial agents. As possible antimalarial drugs that might target both the dual stage and multi-stage stages of the parasite life cycle, these small hybrid molecules have been studied. This review explores a variety of physiologically active compounds that have been described in the literature in order to lay a strong foundation for the logical design and eventual identification of antimalarial drugs based on lead frameworks.
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Affiliation(s)
- Tameika Bagratee
- Department of Pharmaceutical Chemistry, Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal (Westville), Durban, 4000, South Africa
| | - Ritika Prawlall
- Department of Pharmaceutical Chemistry, Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal (Westville), Durban, 4000, South Africa
| | - Thabani Ndlovu
- Department of Pharmaceutical Chemistry, Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal (Westville), Durban, 4000, South Africa
| | - Sinqobile Sibisi
- Department of Pharmaceutical Chemistry, Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal (Westville), Durban, 4000, South Africa
| | - Sisa Ndadane
- Department of Pharmaceutical Chemistry, Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal (Westville), Durban, 4000, South Africa
| | - Baji Baba Shaik
- Department of Pharmaceutical Chemistry, Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal (Westville), Durban, 4000, South Africa
| | - Mahesh B Palkar
- Department of Pharmaceutical Chemistry, Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal (Westville), Durban, 4000, South Africa
- Department of Pharmaceutical Chemistry, SVKM's NMIMS, Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, Vile Parle (West), Mumbai, 400056, Maharashtra, India
| | - Raghavachary Gampa
- Department of Pharmaceutical Chemistry, Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal (Westville), Durban, 4000, South Africa
| | - Rajshekhar Karpoormath
- Department of Pharmaceutical Chemistry, Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal (Westville), Durban, 4000, South Africa
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Raghu MS, Yogesh Kumar K, Shamala T, Alharti FA, Prashanth MK, Jeon BH. Synthesis, antitubercular profile and molecular docking studies of quinazolinone-based pyridine derivatives against drug-resistant tuberculosis. J Biomol Struct Dyn 2024; 42:3307-3317. [PMID: 37261798 DOI: 10.1080/07391102.2023.2217928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 05/03/2023] [Indexed: 06/02/2023]
Abstract
The promising quinazolinone-based pyridine derivatives (4a-j) were synthesized and subsequently tested for their antimycobacterial activities against the various drug-sensitive and drug-resistant Mycobacterium tuberculosis (Mtb) strains to combat infectious diseases and address growing concerns about the devastating effects of tuberculosis (TB). Utilizing 1H NMR, 13C NMR, and mass spectra, the structural and molecular confirmation of the synthesized compounds were deciphered. With minimum inhibitory concentration (MIC) values ranging from 0.31 to 19.13 μM, the results showed that compounds 4e and 4f showed promise anti-TB action against both drug-sensitive and drug-resistant TB strains. To study the cytotoxicity of synthesized molecules, normal Vero and mouse macrophage (RAW264.7) cell lines were utilized. Remarkably, it was revealed that at the highest concentration tested, none of the newly synthesized molecules were toxic to the Vero cell line. The binding patterns of the potent compounds 4b, 4e and 4f in the active site of the mycobacterial membrane protein Large 3 (MmpL3) protein are also revealed by molecular docking studies, which has contributed to the development of a structural rationale for Mtb inhibition. The physicochemical characteristics of the compounds were then predicted using theoretical calculations. Overall, the molecular docking results, physiochemical properties, and observed antimycobacterial activity all point to compound 4e with trifluoromethyl and compound 4f with nitro moiety as potential quinazolinone linked pyridine-based MmpL3 inhibitors.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- M S Raghu
- Department of Chemistry, New Horizon College of Engineering, Bengaluru, India
| | - K Yogesh Kumar
- Department of Chemistry, Faculty of Engineering and Technology, Jain University, Ramanagara, India
| | - T Shamala
- Department of Chemistry, B N M Institute of Technology, Bengaluru, India
| | - Fahad A Alharti
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - M K Prashanth
- Department of Chemistry, B N M Institute of Technology, Bengaluru, India
| | - Byong-Hun Jeon
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul, Republic of Korea
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Kanchrana M, Gamidi RK, Kumari J, Sriram D, Basavoju S. Design, synthesis, anti-mycobacterial activity, molecular docking and ADME analysis of spiroquinoxaline-1,2,4-oxadiazoles via [3 + 2] cycloaddition reaction under ultrasound irradiation. Mol Divers 2024:10.1007/s11030-023-10790-9. [PMID: 38261121 DOI: 10.1007/s11030-023-10790-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 12/04/2023] [Indexed: 01/24/2024]
Abstract
The development of anti-tuberculosis (anti-TB) drugs has become a challenging task in medicinal chemistry. This is because Mycobacterium tuberculosis (TB), the pathogen that causes tuberculosis, has an increasing number of drug-resistant strains, and existing medication therapies are not very effective. This resistance significantly demands new anti-TB drug profiles. Here, we present the design and synthesis of a number of hybrid compounds with previously known anti-mycobacterial moieties attached to quinoxaline, quinoline, tetrazole, and 1,2,4-oxadiazole scaffolds. A convenient ultrasound methodology was employed to attain spiroquinoxaline-1,2,4-oxadiazoles via [3 + 2] cycloaddition of quinoxaline Schiff bases and aryl nitrile oxides at room temperature. This approach avoids standard heating and column chromatography while producing high yields and shorter reaction times. The target compounds 3a-p were well-characterized, and their in vitro anti-mycobacterial activity (anti-TB) was evaluated. Among the screened compounds, 3i displayed promising activity against the Mycobacterium tuberculosis cell line H37Rv, with an MIC99 value of 0.78 µg/mL. However, three compounds (3f, 3h, and 3o) exhibited potent activity with MIC99 values of 6.25 µg/mL. To further understand the binding interactions, the synthesized compounds were docked against the tuberculosis protein 5OEQ using in silico molecular docking. Moreover, the most active compounds were additionally tested for their cytotoxicity against the RAW 264.7 cell line, and the cytotoxicity of compounds 3f, 3h, 3i, and 3o was 27.3, 28.9, 26.4, and 30.2 µg/mL, respectively. These results revealed that the compounds 3f, 3h, 3i, and 3o were less harmful to humans. Furthermore, the synthesized compounds were tested for ADME qualities, and the results suggest that this series is useful for producing innovative and potent anti-tubercular medicines in the future.
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Affiliation(s)
- Madhu Kanchrana
- Department of Chemistry, National Institute of Technology Warangal, Hanamkonda, Telangana, 506004, India
| | - Rama Krishna Gamidi
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, Maharashtra, 411008, India
| | - Jyothi Kumari
- Department of Pharmacy, Birla Institute of Technology and Science-Pilani, Hyderabad, Telangana, 500078, India
| | - Dharmarajan Sriram
- Department of Pharmacy, Birla Institute of Technology and Science-Pilani, Hyderabad, Telangana, 500078, India
| | - Srinivas Basavoju
- Department of Chemistry, National Institute of Technology Warangal, Hanamkonda, Telangana, 506004, India.
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5
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Chaudhary T, Upadhyay PK, Kataria R. Anti-inflammatory and Antimicrobial Potential of 1, 3, 4-oxadiazoles and its Derivatives: A Review. Curr Org Synth 2024; 21:1014-1020. [PMID: 38037905 DOI: 10.2174/0115701794265887231014061317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 08/19/2023] [Accepted: 09/15/2023] [Indexed: 12/02/2023]
Abstract
1, 3, 4-oxadiazole and its derivatives have significant anti-inflammatory and antimicrobial property. Their precise mechanism of action is not known but it is postulated that they act by inhibiting the biosynthesis of certain prostaglandins. 1, 3, 4-oxadiazoles are a class of heterocyclic compounds with wide variety of biological and pharmacological activities. They have been reported to possess analgesic, antimicrobial, antipyretic and anti-inflammatory properties. These compounds are also active against a number of other inflammatory conditions such as arthritis, gout etc. A wide variety of these compounds have been synthesized and some of them are under clinical trials. In this review article, anti-inflammatory and antimicrobial activity of the 1, 3, 4- oxadiazole shall be discussed.
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Affiliation(s)
- Tarun Chaudhary
- Department of Medicinal Chemistry, Institute of Pharmaceutical Research, GLA University, Mathura, 281406, Uttar Pradesh, India
| | - Prabhat Kumar Upadhyay
- Department of Medicinal Chemistry, Institute of Pharmaceutical Research, GLA University, Mathura, 281406, Uttar Pradesh, India
| | - Ritu Kataria
- Department of Chemistry, G.V.M College of Pharmacy, Sonipat, Haryana, 131001, India
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Liu J, Cheng Y, Yuan L, Liu T, Ruan Y, Ren Y, Li L, Jiang S, Xiao Y, Chen J. Discovery and Crystallography Study of Novel Biphenyl Ether and Oxadiazole Thioether (Non-Arylmethylamine)-Based Small-Molecule PD-1/PD-L1 Inhibitors as Immunotherapeutic Agents. J Med Chem 2023; 66:13172-13188. [PMID: 37674362 DOI: 10.1021/acs.jmedchem.3c01141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/08/2023]
Abstract
Current small-molecule PD-1/PD-L1 inhibitors are mainly based on the arylmethylamine/biphenyl core scaffold. Herein, we designed for the first time a series of non-arylmethylamine analogues (oxadiazole thioether derivatives) as small-molecule PD-1/PD-L1 inhibitors. Among them, compound LP23 exhibited the most potent PD-L1 inhibitory activity with an IC50 of 16.7 nM, 3.2-fold better than the lead BMS-202 (IC50 = 53.6 nM). The X-ray crystal structure of LP23 in complex with PD-L1 was solved at a resolution of 2.6 Å, which further confirmed the high binding affinity of LP23 to PD-L1. In the HepG2/Jurkat T cell co-culture model, LP23 effectively promoted HepG2 cell death by restoring the immune function of T cells. In addition, LP23 showed excellent in vivo antitumor efficacy (TGI = 88.6% at 30 mg/kg) and benign toxicity profiles in a B16-F10 tumor model by modulating PD-L1. In summary, LP23 represents the first non-arylmethylamine-based small-molecule PD-1/PD-L1 inhibitor worthy of further investigation.
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Affiliation(s)
- Jin Liu
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China
- Key Laboratory of Tropical Biological Resources of Ministry of Education and One Health Institute, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, China
| | - Yao Cheng
- State Key Laboratory of Natural Medicines and Department of Pharmacology, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
- Chongqing Innovation Institute of China Pharmaceutical University, Chongqing 401135, China
| | - Lin Yuan
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China
| | - Ting Liu
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China
| | - Yong Ruan
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China
| | - Yichang Ren
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China
| | - Ling Li
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China
| | - Sheng Jiang
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Yibei Xiao
- State Key Laboratory of Natural Medicines and Department of Pharmacology, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
- Chongqing Innovation Institute of China Pharmaceutical University, Chongqing 401135, China
| | - Jianjun Chen
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China
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Yadav V, Boshoff HI, Trifonov L, Roma JSO, Ioerger TR, Barry CE, Oh S. Synthesis and Structure-Activity Relationships of a New Class of Oxadiazoles Targeting DprE1 as Antitubercular Agents. ACS Med Chem Lett 2023; 14:1275-1283. [PMID: 37736177 PMCID: PMC10510505 DOI: 10.1021/acsmedchemlett.3c00295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 08/09/2023] [Indexed: 09/23/2023] Open
Abstract
The continuing prevalence of drug-resistant tuberculosis threatens global TB control programs, highlighting the need to discover new drug candidates to feed the drug development pipeline. In this study, we describe a high-throughput screening hit (4-benzylpiperidin-1-yl)(1-(5-phenyl-1,3,4-oxadiazol-2-yl)piperidin-4-yl)methanone (P1) as a potent antitubercular agent. Structure-activity guided synthesis led to the discovery of several analogs with high in vitro potency. P1 was found to have promising potency against many drug-resistant strains, as well as drug-susceptible clinical isolates. It also showed cidality against Mtb growing in host macrophages. Whole genome sequencing of genomic DNA from resistant mutants raised to P1 revealed mutations in decaprenylphosphoryl-β-d-ribose 2'-oxidase (DprE1). This novel oxadiazole scaffold expands the set of chemical tools for targeting a well-validated pathway to treat tuberculosis.
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Affiliation(s)
- Veena
D. Yadav
- Tuberculosis
Research Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases
(NIAID), National Institutes of Health (NIH), Bethesda, Maryland 20892, United States
| | - Helena I. Boshoff
- Tuberculosis
Research Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases
(NIAID), National Institutes of Health (NIH), Bethesda, Maryland 20892, United States
| | - Lena Trifonov
- Tuberculosis
Research Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases
(NIAID), National Institutes of Health (NIH), Bethesda, Maryland 20892, United States
| | - Jose Santinni O. Roma
- Tuberculosis
Research Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases
(NIAID), National Institutes of Health (NIH), Bethesda, Maryland 20892, United States
| | - Thomas R. Ioerger
- Department
of Computer Science and Engineering, Texas
A&M University, College
Station, Texas 77843, United States
| | - Clifton E. Barry
- Tuberculosis
Research Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases
(NIAID), National Institutes of Health (NIH), Bethesda, Maryland 20892, United States
| | - Sangmi Oh
- Tuberculosis
Research Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases
(NIAID), National Institutes of Health (NIH), Bethesda, Maryland 20892, United States
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Irfan A, Faisal S, Zahoor AF, Noreen R, Al-Hussain SA, Tuzun B, Javaid R, Elhenawy AA, Zaki MEA, Ahmad S, Abdellattif MH. In Silico Development of Novel Benzofuran-1,3,4-Oxadiazoles as Lead Inhibitors of M. tuberculosis Polyketide Synthase 13. Pharmaceuticals (Basel) 2023; 16:829. [PMID: 37375776 DOI: 10.3390/ph16060829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 05/24/2023] [Accepted: 05/26/2023] [Indexed: 06/29/2023] Open
Abstract
Benzofuran and 1,3,4-oxadiazole are privileged and versatile heterocyclic pharmacophores which display a broad spectrum of biological and pharmacological therapeutic potential against a wide variety of diseases. This article reports in silico CADD (computer-aided drug design) and molecular hybridization approaches for the evaluation of the chemotherapeutic efficacy of 16 S-linked N-phenyl acetamide moiety containing benzofuran-1,3,4-oxadiazole scaffolds BF1-BF16. This virtual screening was carried out to discover and assess the chemotherapeutic efficacy of BF1-BF16 structural motifs as Mycobacterium tuberculosis polyketide synthase 13 (Mtb Pks13) enzyme inhibitors. The CADD study results revealed that the benzofuran clubbed oxadiazole derivatives BF3, BF4, and BF8 showed excellent and remarkably significant binding energies against the Mtb Pks13 enzyme comparable with the standard benzofuran-based TAM-16 inhibitor. The best binding affinity scores were displayed by 1,3,4-oxadiazoles-based benzofuran scaffolds BF3 (-14.23 kcal/mol), BF4 (-14.82 kcal/mol), and BF8 (-14.11 kcal/mol), in comparison to the binding affinity score of the standard reference TAM-16 drug (-14.61 kcal/mol). 2,5-Dimethoxy moiety-based bromobenzofuran-oxadiazole derivative BF4 demonstrated the highest binding affinity score amongst the screened compounds, and was higher than the reference Pks13 inhibitor TAM-16 drug. The bindings of these three leads BF3, BF4, and BF8 were further confirmed by the MM-PBSA investigations in which they also exhibited strong bindings with the Pks13 of Mtb. Moreover, the stability analysis of these benzofuran-1,3,4-oxadiazoles in the active sites of the Pks13 enzyme was achieved through molecular dynamic (MD) simulations at 250 ns virtual simulation time, which indicated that these three in silico predicted bio-potent benzofuran tethered oxadiazole molecules BF3, BF4, and BF8 demonstrated stability with the active site of the Pks13 enzyme.
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Affiliation(s)
- Ali Irfan
- Department of Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan
| | - Shah Faisal
- Department of Chemistry, Islamia College University Peshawar, Peshawar 25120, Pakistan
| | - Ameer Fawad Zahoor
- Department of Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan
| | - Razia Noreen
- Department of Biochemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan
| | - Sami A Al-Hussain
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 13623, Saudi Arabia
| | - Burak Tuzun
- Plant and Animal Production Department, Technical Sciences Vocational School of Sivas, Sivas Cumhuriyet University, Sivas 58140, Turkey
| | - Rakshanda Javaid
- Department of Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan
| | - Ahmed A Elhenawy
- Chemistry Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo 11884, Egypt
- Chemistry Department, Faculty of Science and Art, AlBaha University, Mukhwah, Al Bahah 65731, Saudi Arabia
| | - Magdi E A Zaki
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 13623, Saudi Arabia
| | - Sajjad Ahmad
- Department of Health and Biological Sciences, Abasyn University, Peshawar 25000, Pakistan
| | - Magda H Abdellattif
- Department of Chemistry, College of Science, Taif University, Taif 21944, Saudi Arabia
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Pflégr V, Stolaříková J, Pál A, Korduláková J, Krátký M. Novel pyrimidine-1,3,4-oxadiazole hybrids and their precursors as potential antimycobacterial agents. Future Med Chem 2023; 15:1049-1067. [PMID: 37555280 DOI: 10.4155/fmc-2023-0096] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2023] Open
Abstract
Background: Molecular hybridization and isostery are proven approaches in medicinal chemistry, and as such we used them to design novel compounds that we investigated as potential antimycobacterials to combat drug-resistant strains. Methods & results: Prepared N-alkyl-2-(pyrimidine-5-carbonyl)hydrazine-1-carboxamides were cyclized to N-alkyl-5-(pyrimidin-5-yl)-1,3,4-oxadiazol-2-amines along with their analogues. A total of 48 compounds were tested against Mycobacterium tuberculosis H37Rv, Mycobacterium avium and Mycobacterium kansasii, with oxadiazoles and C8-C12 alkyls being the most effective from a concentration of 2 μM. Multidrug-resistant strains were inhibited at same concentrations as the susceptible strain. For the most potent N-dodecyl-5-(pyrimidin-5-yl)-1,3,4-oxadiazol-2-amine, the mechanism of action related to cell wall biosynthesis was investigated. Conclusion: Pyrimidine-1,3,4-oxadiazole hybrids are unique antimycobacterial agents inhibiting mainly M. tuberculosis strains without cross-resistance to current drugs and are thus promising drug candidates.
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Affiliation(s)
- Václav Pflégr
- Department of Organic & Bioorganic Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Jiřina Stolaříková
- Laboratory for Mycobacterial Diagnostics & Tuberculosis, Regional Institute of Public Health in Ostrava, Partyzánské náměstí 7, Ostrava, Czech Republic
| | - Adrián Pál
- Department of Biochemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynská dolina CH-1, Ilkovičova 6, 842 15, Bratislava, Slovakia
| | - Jana Korduláková
- Department of Biochemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynská dolina CH-1, Ilkovičova 6, 842 15, Bratislava, Slovakia
| | - Martin Krátký
- Department of Organic & Bioorganic Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
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Preetham R, Vijaya Kumar MS, Swaroop TR, Kiran KR, Sukrutha KP, Sadashiva MP. A novel and effective method for the synthesis 1,3,4-oxadiazoles from carbimidothioates and benzohydrazides: An unexpected cyclization. SYNTHETIC COMMUN 2023. [DOI: 10.1080/00397911.2023.2187306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
Affiliation(s)
- Ramesh Preetham
- Department of Studies in Chemistry, University of Mysore, Mysuru, Karnataka, India
- Department of Chemistry, Malnad College of Engineering, Hassan, Karnataka, India
| | - Malahalli S. Vijaya Kumar
- Department of Polymer Science and Technology, JSS Science and Technology University, Mysuru, Karnataka, India
| | | | - Kuppalli R. Kiran
- Department of Studies in Chemistry, University of Mysore, Mysuru, Karnataka, India
| | - Kodipura P. Sukrutha
- Department of Studies in Chemistry, University of Mysore, Mysuru, Karnataka, India
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DFT Study of Regio- and Stereoselective 13DC Reaction between Diazopropane and Substituted Chalcone Derivatives: Molecular Docking of Novel Pyrazole Derivatives as Anti-Alzheimer's Agents. Molecules 2023; 28:molecules28041899. [PMID: 36838888 PMCID: PMC9964806 DOI: 10.3390/molecules28041899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 02/09/2023] [Accepted: 02/11/2023] [Indexed: 02/19/2023] Open
Abstract
In the present work, a combination of experimental and density functional theory (DFT) investigation of the (3+2) cycloaddition reactions of diazopropane with chalcone derivatives was reported. All calculations were performed using several DFT approaches (B3LYP, M06, M06-2X) and 6-311+G(d, p) basis set. Based on the NMR, MS analyses and IRC calculations, the pyrazole derivatives are the kinetic adducts over the oxadiazoles. The use of two equivalents of diazopropane leads to thermodynamical products. A molecular docking analysis was performed to investigate the efficiency of the obtained products against selected drug targets in anti-Alzheimer ligand-receptor interactions. We revealed that the ligands selected were bound mainly to the catalytic (CAS) and peripheral (PAS) anionic sites of acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE) inhibitors, respectively. The selected ligands 1, 3, 4 and P14 may act as the best inhibitors against Alzheimer's disease (AD).
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12
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Gnanavelu K, K S VK, Eswaran S, Sivashanmugam K. Novel quinoline-piperazine hybrids: the design, synthesis and evaluation of antibacterial and antituberculosis properties. RSC Med Chem 2023; 14:183-189. [PMID: 36760744 PMCID: PMC9890665 DOI: 10.1039/d2md00260d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 10/20/2022] [Indexed: 12/12/2022] Open
Abstract
A communicable disease such as tuberculosis (TB), which takes ∼10 million lives worldwide every year, is one of the major concerns for future generations. The intake of multiple antibiotics is increasing because of the emergence of multiple drug-resistant TB (MDR-TB) to pathogens which do not respond to the first-line TB drugs. Even though numerous drugs are available on the market, there is a huge need for MDR-TB drugs. Herein, our emphasis was to synthesise a series of 2,4,6-substituted quinoline conjugated piperazine coupled sulfonamides, as well as amides, and to study and evaluate their in vitro antibacterial activity against both susceptible and resistant pathogens of Gram-positive and Gram-negative bacteria. Furthermore, their antituberculosis activity was assessed against non-virulent, virulent and MDR pathogens. Few compounds displayed inhibitory activity against bacterial growth, but two compounds displayed significant inhibitory activity against all the TB strains (lowest MIC of 10g is 0.07 μM and 11e is 1.1 μM), which are more effective than other 1st line and 2nd line TB drugs. These two compounds are less cytotoxic, and could be developed as antibiotics or MDR-TB drugs by improving their hydrophilicity.
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Affiliation(s)
- Karunanidhi Gnanavelu
- Anthem Biosciences Pvt. Ltd. #49, Bommasandra Industrial Area, Bommasandra Bangalore 560099 Karnataka India
- School of Bio-Sciences and Technology, Vellore Institute of Technology Vellore Tamil Nadu 632014 India
| | - Vinay Kumar K S
- Anthem Biosciences Pvt. Ltd. #49, Bommasandra Industrial Area, Bommasandra Bangalore 560099 Karnataka India
| | - Sumesh Eswaran
- Anthem Biosciences Pvt. Ltd. #49, Bommasandra Industrial Area, Bommasandra Bangalore 560099 Karnataka India
| | - Karthikeyan Sivashanmugam
- School of Bio-Sciences and Technology, Vellore Institute of Technology Vellore Tamil Nadu 632014 India
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13
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Shelke DE, Thorat BR, Mali SN, Dhabarde SS. Synthesis, In Silico and In Vitro Antimycobacterial Studies on Substituted Benzofuran Derivatives. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2022. [DOI: 10.1134/s1068162023010259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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14
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Abdelrahman MA, Almahli H, Al-Warhi T, Majrashi TA, Abdel-Aziz MM, Eldehna WM, Said MA. Development of Novel Isatin-Tethered Quinolines as Anti-Tubercular Agents against Multi and Extensively Drug-Resistant Mycobacterium tuberculosis. Molecules 2022; 27:molecules27248807. [PMID: 36557937 PMCID: PMC9781264 DOI: 10.3390/molecules27248807] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/07/2022] [Accepted: 12/09/2022] [Indexed: 12/14/2022] Open
Abstract
We describe the design and synthesis of two isatin-tethered quinolines series (Q6a-h and Q8a-h), in connection with our research interest in developing novel isatin-bearing anti-tubercular candidates. In a previous study, a series of small molecules bearing a quinoline-3-carbohydrazone moiety was developed as anti-tubercular agents, and compound IV disclosed the highest potency with MIC value equal to 6.24 µg/mL. In the current work, we adopted the bioisosteric replacement approach to replace the 3,4,5-trimethoxy-benzylidene moiety in the lead compound IV with the isatin motif, a privileged scaffold in the TB drug discovery, to furnish the first series of target molecules Q6a-h. Thereafter, the isatin motif was N-substituted with either a methyl or benzyl group to furnish the second series Q8a-h. All of the designed quinoilne-isatin conjugates Q6a-h and Q8a-h were synthesized and then biologically assessed for anti-tubercular actions towards drug-susceptible, MDR, and XDR strains. Superiorly, the N-benzyl-bearing compound Q8b possessed the best activities against the examined M. tuberculosis strains with MICs equal 0.06, 0.24, and 1.95 µg/mL, respectively.
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Affiliation(s)
- Mohamed A. Abdelrahman
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Egyptian Russian University, Badr City 11829, Egypt
- Correspondence: (M.A.A.); (W.M.E.)
| | - Hadia Almahli
- Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, UK
| | - Tarfah Al-Warhi
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Taghreed A. Majrashi
- Department of Pharmacognosy, College of Pharmacy, King Khalid University, Abha 61441, Saudi Arabia
| | - Marwa M. Abdel-Aziz
- The Regional Center for Mycology and Biotechnology, Al-Azhar University, Cairo 11651, Egypt
| | - Wagdy M. Eldehna
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh 33516, Egypt
- School of Biotechnology, Badr University in Cairo, Cairo 11829, Egypt
- Correspondence: (M.A.A.); (W.M.E.)
| | - Mohamed A. Said
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Egyptian Russian University, Badr City 11829, Egypt
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Benzo[ d]thiazole-2-carboxamides as new antituberculosis chemotypes inhibiting mycobacterial ATP phosphoribosyl transferase. Future Med Chem 2022; 14:1847-1864. [PMID: 36444737 DOI: 10.4155/fmc-2022-0226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Aims: The screening of antimycobacterial benzo[d]thiazole-2-carboxamides against ATP-phosphoribosyl transferase (ATP-PRTase) was conducted. Materials & methods: The antitubercular potential of compounds 1 and 2 against ATP-PRTase was assessed through the determination of half maximal effective concentration (EC50) and binding constant (Kd), as well as competitive inhibitory studies and studies of perturbation of secondary structure, molecular modeling and L-histidine complementation assay. Results & conclusion: Compounds 1n and 2a significantly inhibited ATP-PRTase as evidenced by their EC50 and Kd values and the perturbation of the secondary structure study. Compound 1n exhibited stronger competitive inhibition toward ATP compared with 2a. The inhibition of the growth of Mycobacterium tuberculosis by targeting the L-histidine biosynthesis pathway and molecular modeling studies further supported the inhibition of ATP-PRTase.
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16
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Synthesis, Anticancer Activity and Molecular Docking Studies of Novel N-Mannich Bases of 1,3,4-Oxadiazole Based on 4,6-Dimethylpyridine Scaffold. Int J Mol Sci 2022; 23:ijms231911173. [PMID: 36232475 PMCID: PMC9570134 DOI: 10.3390/ijms231911173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 09/19/2022] [Accepted: 09/20/2022] [Indexed: 11/17/2022] Open
Abstract
Cancer is one of the greatest challenges in modern medicine today. Difficult and long-term treatment, the many side effects of the drugs used and the growing resistance to treatment of neoplastic cells necessitate new approaches to therapy. A very promising targeted therapy is based on direct impact only on cancer cells. As a continuation of our research on new biologically active molecules, we report herein the design, synthesis and anticancer evaluation of a new series of N-Mannich-base-type hybrid compounds containing morfoline or different substituted piperazines moieties, a 1,3,4-oxadiazole ring and a 4,6-dimethylpyridine core. All compounds were tested for their potential cytotoxicity against five human cancer cell lines, A375, C32, SNB-19, MCF-7/WT and MCF-7/DX. Two of the active N-Mannich bases (compounds 5 and 6) were further evaluated for growth inhibition effects in melanoma (A375 and C32), and normal (HaCaT) cell lines using clonogenic assay and a population doubling time test. The apoptosis was determined with the neutral version of comet assay. The confocal microscopy method enabled the visualization of F-actin reorganization. The obtained results demonstrated that compounds 5 and 6 have cytotoxic and proapoptotic effects on melanoma cells and are capable of inducing F-actin depolarization in a dose-dependent manner. Moreover, computational chemistry approaches, molecular docking and electrostatic potential were employed to study non-covalent interactions of the investigated compounds with four receptors. It was found that all the examined molecules exhibit a similar binding affinity with respect to the chosen reference drugs.
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17
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Metre TV, Joshi SD, Kodasi B, Bayannavar PK, Nesaragi AR, Madar SF, Mavazzan AR, Kamble RR. L-proline catalyzed ring transformation of 5-substituted tetrazole to 1,3,4-oxadiazoles as anti-tubercular agents. SYNTHETIC COMMUN 2022. [DOI: 10.1080/00397911.2022.2097874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
| | - Shrinivas D. Joshi
- Department of Pharmaceutical Chemistry, S.E.T’s College of Pharmacy, Sangolli Rayanna Nagar, Dharwad, India
| | - Barnabas Kodasi
- Department of Chemistry, Karnatak University, Dharwad, India
| | | | | | - Suresh F. Madar
- Department of Chemistry, Karnatak University, Dharwad, India
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18
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De S, Aamna B, Sahu R, Parida S, Behera SK, Dan AK. Seeking heterocyclic scaffolds as antivirals against dengue virus. Eur J Med Chem 2022; 240:114576. [PMID: 35816877 PMCID: PMC9250831 DOI: 10.1016/j.ejmech.2022.114576] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 06/24/2022] [Accepted: 06/25/2022] [Indexed: 12/20/2022]
Abstract
Dengue is one of the most typical viral infection categorized in the Neglected Tropical Diseases (NTDs). It is transmitted via the female Aedes aegypti mosquito to humans and majorly puts risk to the lives of more than half of the world. Recent advancements in medicinal chemistry have led to the design and development of numerous potential heterocyclic scaffolds as antiviral drug candidates for the inhibition of the dengue virus (DENV). Thus, in this review, we have discussed the significance of inhibitory and antiviral activities of nitrogen, oxygen, and mixed (nitrogen-sulfur and nitrogen-oxygen) heterocyclic scaffolds that are published in the last seven years (2016–2022). Furthermore, we have also discussed the probable mechanisms of action and the diverse structure-activity relationships (SARs) of the heterocyclic scaffolds. In addition, this review has elaborately outlined the mechanism of viral infection and the life cycle of DENV in the host cells. The wide set of heterocycles and their SARs will aid in the development of pharmaceuticals that will allow the researchers to synthesize the promising anti-dengue drug candidate in the future.
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19
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Yang R, Cao W, Liu S, Li Q, Sun Y, Liang C, Ren W, Liu Y, Meng J, Li C. Evaluation of a novel inhibitor of aspartate semialdehyde dehydrogenase as a potent antitubercular agent against Mycobacterium tuberculosis. J Antibiot (Tokyo) 2022; 75:333-340. [DOI: 10.1038/s41429-022-00520-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 03/10/2022] [Accepted: 03/11/2022] [Indexed: 11/09/2022]
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20
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Lin B, Yao Y, Huang Y, Weng Z. 2,2,2-Trifluoroacetaldehyde O-(Aryl)oxime: A Precursor of Trifluoroacetonitrile. Org Lett 2022; 24:2055-2058. [PMID: 35266394 DOI: 10.1021/acs.orglett.2c00637] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The preparation of 2,2,2-trifluoroacetaldehyde O-(aryl)oxime, a previously inaccessible precursor of trifluoroacetonitrile, via reaction of hydroxylamine and trifluoroacetaldehyde hydrate is reported. This precursor released CF3CN in quantitative yield under mildly basic conditions. The precursor was successfully used in the synthesis of trifluoromethylated oxadiazoles. The facile, cost-effective, scalable, and recyclable procedure makes these trifluoroacetonitrile precursors generally applicable.
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Affiliation(s)
- Bo Lin
- Fujian Engineering Research Center of New Chinese Lacquer Material, Ocean College, Minjiang University, Fuzhou 350108, China.,Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Yunfei Yao
- Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Yangjie Huang
- Fujian Engineering Research Center of New Chinese Lacquer Material, Ocean College, Minjiang University, Fuzhou 350108, China
| | - Zhiqiang Weng
- Fujian Engineering Research Center of New Chinese Lacquer Material, Ocean College, Minjiang University, Fuzhou 350108, China.,Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
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21
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Synthesis of some novel isatin-thiazole conjugates and their computational and biological studies. Struct Chem 2022. [DOI: 10.1007/s11224-022-01892-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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22
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Desai NC, Somani HC, Mehta HK, Jadeja DJ, Khasiya AG, Khedkar VM. Microwave-assisted organic synthesis, antimycobacterial activity, structure-activity relationship and molecular docking studies of some novel indole-oxadiazole hybrids. SAR AND QSAR IN ENVIRONMENTAL RESEARCH 2022; 33:89-109. [PMID: 35102805 DOI: 10.1080/1062936x.2022.2032333] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 01/17/2022] [Indexed: 06/14/2023]
Abstract
Multidrug-resistant tuberculosis (MDR-TB) is a severe threat to mankind because most drugs are ineffective in inhibiting tubercular strains. Due to the increase of MDR-TB, many first and second-line drugs are ineffective against tubercular strains. To combat the resistance of currently accessible drugs, structural changes must be made on a regular basis. Thus, in the search for new antimycobacterial drugs, a series of 1-(2-(1H-indol-3-yl)-5-phenyl-1,3,4-oxadiazol-3(2H)-yl)-3-phenylprop-2-en-1-ones (5a-o) have been developed, synthesized, characterized, and screened for antimycobacterial activity. The synthetic approach includes imine generation and cyclization using both conventional and microwave methods to create hybrid molecules with indole and oxadiazole motifs. The set of synthesized compounds have demonstrated some promising activity against tubercular strains of Mycobacterium tuberculosis (ATCC 25177) and M. bovis (ATCC 35734). Compound 5l inhibited M. bovis strain 100% in 10 µg/mL concentration, while compound 5m inhibited M. tuberculosis strain 90.4% in 30 µg/mL concentration. Molecular docking study against mycobacterial enoyl reductase (InhA) could provide well-clustered solutions to the binding modes and affinity for these molecules as compound 5l showed glide score of -12.275 and glide energy of -54.937 kcal/mol.
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Affiliation(s)
- N C Desai
- Division of Medicinal Chemistry, Department of Chemistry, Maharaja Krishnakumarsinhji Bhavnagar University, Bhavnagar, India
| | - H C Somani
- Division of Medicinal Chemistry, Department of Chemistry, Maharaja Krishnakumarsinhji Bhavnagar University, Bhavnagar, India
| | - H K Mehta
- Division of Medicinal Chemistry, Department of Chemistry, Maharaja Krishnakumarsinhji Bhavnagar University, Bhavnagar, India
| | - D J Jadeja
- Division of Medicinal Chemistry, Department of Chemistry, Maharaja Krishnakumarsinhji Bhavnagar University, Bhavnagar, India
| | - A G Khasiya
- Division of Medicinal Chemistry, Department of Chemistry, Maharaja Krishnakumarsinhji Bhavnagar University, Bhavnagar, India
| | - V M Khedkar
- Department of Pharmaceutical Chemistry, School of Pharmacy, Vishwakarma University, Pune, India
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23
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Frejat FOA, Cao Y, Zhai H, Abdel-Aziz SA, Gomaa HA, Youssif BG, Wu C. Novel 1,2,4-oxadiazole/pyrrolidine hybrids as DNA gyrase and topoisomerase IV inhibitors with potential antibacterial activity. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2021.103538] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
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24
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Synthesis, characterization, DFT calculation, antifungal, antioxidant, CT-DNA/pBR322 DNA interaction and molecular docking studies of heterocyclic analogs. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.131248] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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25
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Unsal Tan O, Zengin M. Insights into the chemistry and therapeutic potential of acrylonitrile derivatives. Arch Pharm (Weinheim) 2021; 355:e2100383. [PMID: 34763365 DOI: 10.1002/ardp.202100383] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 10/21/2021] [Accepted: 10/22/2021] [Indexed: 12/20/2022]
Abstract
Acrylonitrile is a fascinating scaffold widely found in many natural products, drugs, and drug candidates with various biological activities. Several drug molecules such as entacapone, rilpivirine, teriflunomide, and so forth, bearing an acrylonitrile moiety have been marketed. In this review, diverse synthetic strategies for constructing desired acrylonitriles are discussed, and the different biological activities and medicinal significance of various acrylonitrile derivatives are critically evaluated. The information gathered is expected to provide rational guidance for the development of clinically useful agents from acrylonitriles.
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Affiliation(s)
- Oya Unsal Tan
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
| | - Merve Zengin
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
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26
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Nava-Ramirez JC, Santana-Krimskaya SE, Franco-Molina MA, Ortega-Villarreal AS, Lopez I, Michaelis DJ, Hernandez-Fernandez E. Synthesis of α,β-unsaturated benzotriazolyl-1,3,4-oxadiazole derivatives: anticancer activity, cytotoxicity, and cell imaging. IEEE Trans Nanobioscience 2021; 21:125-134. [PMID: 34428148 DOI: 10.1109/tnb.2021.3100888] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A series of ten α,β-unsaturated benzotriazolyl-1,3,4-oxadiazole derivatives was synthesized and all compounds were evaluated in vitro against three breast cancer cell lines (MCF-7, MDA-MB-231 and 4T1) at different concentrations (0.1, 0.5, 1, 2, 3, 4 and 5 mg/mL). The results showed that compounds 6a, 6c, 6d, 6f, 6g, and 6i displayed acceptable anticancer activity, where compound 6f was the most active on the three cell lines (IC50 = 0.80, 0.07, and 0.30 mg/mL, respectively). Regarding the cytotoxicity assay, the compounds exhibited modest toxicity on murine splenocytes and peripheral human blood cells at the highest concentration tested (5 mg/mL). Compound 6f was further evaluated at different concentrations showing moderate cytotoxicity at the 5 mg/mL concentration and negligible cytotoxicity at the minimum concentration evaluated (0.05 mg/mL). Finally, the compounds 6a, 6c, 6d, 6f, 6g, 6i, and 6j were evaluated as fluorescence markers due to their ability to be internalized into MCF-7 cells.
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27
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Fekadu G, Chow DYW, You JHS. The pharmacotherapeutic management of pulmonary tuberculosis: an update of the state-of-the-art. Expert Opin Pharmacother 2021; 23:139-148. [PMID: 34402698 DOI: 10.1080/14656566.2021.1967930] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
INTRODUCTION Pulmonary tuberculosis (TB) remains an important global health challenge of the 21st century, and the emerging resistance against anti-TB drugs is still a growing concern. And while there was a significant cumulative reduction in the incidence of TB between 2015 and 2019, 2.8% of all TB cases in 2019 were reported to be drug resistant. AREA COVERED This review provides the reader with an update on pharmacotherapy for patients with TB susceptible or resistant to drug therapy. The authors also include promising investigational drugs herein. Finally, the authors share with the reader their expert opinions on the current state of the art and their future perspectives. EXPERT OPINION The current pharmacotherapeutic management aims to enhance favorable treatment outcomes and reduce treatment-related adverse events. One approach is to use shorter and all-oral regimens for eligible patients. Traditional longer regimens for most patients are also optimized to lower incidence of treatment failure and serious adverse events.
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Affiliation(s)
- Ginenus Fekadu
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, NT, Hong Kong
| | - Dilys Yan-Wing Chow
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, NT, Hong Kong
| | - Joyce H S You
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, NT, Hong Kong
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28
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Bashir B, Shahid W, Ashraf M, Saleem M, Aziz-Ur-Rehman, Muzaffar S, Imran M, Amjad H, Bhattarai K, Riaz N. Identification of phenylcarbamoylazinane-1,3,4-oxadiazole amides as lipoxygenase inhibitors with expression analysis and in silico studies. Bioorg Chem 2021; 115:105243. [PMID: 34403937 DOI: 10.1016/j.bioorg.2021.105243] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 07/16/2021] [Accepted: 08/02/2021] [Indexed: 12/26/2022]
Abstract
In search for new anti-inflammatory agents that inhibit the enzymes of arachidonic acid pathway as the drug targets, the present article describes the screening of 1,3,4-oxadiazole analogues against lipoxygenase (LOX) enzyme. The work is based on the synthesis of new N-alkyl/aralky/aryl derivatives (6a-o) of 2-(4-phenyl-5-(1-phenylcarbamoylpiperidine)-4H-1,3,4-oxadiazol-3-ylthio)acetamide which were obtained by the reaction of 1,3,4-oxadiazole (3) with various electrophiles (5a-o), in KOH. The synthesized analogues showed potent to moderate inhibitory activity against the soybean 15-LOX enzyme; especially 6g, 6b, 6a and 6l displayed the potent inhibitory potential with IC50 values 7.15 ± 0.26, 9.32 ± 0.42, 15.83 ± 0.45 & 18.37 ± 0.53 µM, respectively, while excellent to moderate inhibitory profiles with IC50 values in the range of 26.13-98.21 µM were observed from the compounds 6k, 6m, 6j, 6o, 6h, 6f, 6n and 6c. Most of the active compounds exhibited considerable cell viability against blood mononuclear cells (MNCs) at 0.25 mM by MTT assay except 6f, 6h, 6k and 6m which showed around 50% cell viability. Flow cytometry studies of the selected compounds 6a, 6j and 6n revealed that these caused 79.5-88.51% early apoptotic changes in MNCs compared with 4.26% for control quercetin at their respective IC50 values. The relative expression of 5-LOX gene was monitored in MNCs after treatment with these three molecules and all down-regulated the enzyme activity. In silico ADME and molecular docking studies further supported these studies of oxadiazole derivatives and considered it as potential 'lead' compounds in drug discovery and development.
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Affiliation(s)
- Bushra Bashir
- Institute of Chemistry, Baghdad-ul-Jadeed Campus, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Wardah Shahid
- Institute of Chemistry, Baghdad-ul-Jadeed Campus, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Muhammad Ashraf
- Institute of Chemistry, Baghdad-ul-Jadeed Campus, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan.
| | - Muhammad Saleem
- Institute of Chemistry, Baghdad-ul-Jadeed Campus, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Aziz-Ur-Rehman
- Department of Chemistry, Government College University Lahore, Lahore 54000, Pakistan
| | - Saima Muzaffar
- Institute of Chemistry, Baghdad-ul-Jadeed Campus, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Muhammad Imran
- Institute of Chemistry, Baghdad-ul-Jadeed Campus, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Hira Amjad
- Department of Chemistry, Government College University Lahore, Lahore 54000, Pakistan
| | - Keshab Bhattarai
- Department of Pharmaceutical Biology, Auf der Morgenstelle 8, 72076, University of Tuebingen, Tuebingen, Germany
| | - Naheed Riaz
- Institute of Chemistry, Baghdad-ul-Jadeed Campus, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan.
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Melo de Oliveira VN, Flávia do Amaral Moura C, Peixoto ADS, Gonçalves Ferreira VP, Araújo HM, Lapa Montenegro Pimentel LM, Pessoa CDÓ, Nicolete R, Versiani Dos Anjos J, Sharma PP, Rathi B, Pena LJ, Rollin P, Tatibouët A, Nascimento de Oliveira R. Synthesis of alkynylated 1,2,4-oxadiazole/1,2,3-1H-triazole glycoconjugates: Discovering new compounds for use in chemotherapy against lung carcinoma and Mycobacterium tuberculosis. Eur J Med Chem 2021; 220:113472. [PMID: 33940463 DOI: 10.1016/j.ejmech.2021.113472] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 04/08/2021] [Accepted: 04/09/2021] [Indexed: 11/25/2022]
Abstract
A total of forty-three compounds were synthesized, including thirty-two new ones. Among those compounds, seventeen were selected and tested on human tumor cell lines: PC-3 (prostate adenocarcinoma), HCT-116 (colorectal tumor), NCIH-460 (lung carcinoma), SKMEL-103 (melanoma) and AGP-01 (gastric tumor). Alkynylated 1,2,4-oxadiazoles 2m, 3g and 3k exhibited antiproliferative activities against NCIH-460 in culture. Alkynylated N-cyclohexyl-1,2,4-oxadiazoles 3a-m and bis-heterocycle glucoglycero-1,2,3-triazole-N-cyclohexyl-1,2,4-oxadiazole derivatives 5a-k and 6-11 were evaluated for their in vitro efficacy towards Mycobacterium tuberculosis (Mtb) H37Ra and H37Rv strains. In general, glycerosugars conjugated to 1,2,4-oxadiazole via a 1,2,3-triazole linkage (5a, 5e, 5j, 5k, and 7) showed in vitro inhibitory activity against Mtb (H37Rv). The largest molecules bis-triazoles 10 and 11, proved inactive against TB. Probably, the absence of the N-cyclohexyl group in compound 8 and 1,2,4-oxadiazole nucleus in compound 9 were responsible for its low activity. Glucoglycero-triazole-oxadiazole derivatives 5e (10 μM) and 7 (23.9 μM) were the most promising antitubercular compounds, showing a better selective index than when tested against RAW 264.7 and HepG2 cells. Vero cell were used to investigate cytotoxicity of compounds 5a, 5h, 5j, 5k, and these compounds showed good cell viability. Further, in silico studies were performed for most active compounds (5e and 7) with potential drug targets, DprE1 and InhA of Mtb to understand possible interactions aided with molecular dynamic simulation (100ns).
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Affiliation(s)
| | | | | | - Vanessa Pinheiro Gonçalves Ferreira
- Laboratorio de Oncologia Experimental, Nucleo de Pesquisa Em Desenvolvimento de Medicamentos (NPDM), Universidade Federal Do Ceara, Fortaleza, Brazil; Oswaldo Cruz Foundation (Fiocruz), Eusebio, Brazil
| | - Héverton Mendes Araújo
- Laboratorio de Oncologia Experimental, Nucleo de Pesquisa Em Desenvolvimento de Medicamentos (NPDM), Universidade Federal Do Ceara, Fortaleza, Brazil; Oswaldo Cruz Foundation (Fiocruz), Eusebio, Brazil
| | | | - Claudia do Ó Pessoa
- Laboratorio de Oncologia Experimental, Nucleo de Pesquisa Em Desenvolvimento de Medicamentos (NPDM), Universidade Federal Do Ceara, Fortaleza, Brazil
| | - Roberto Nicolete
- Laboratorio de Oncologia Experimental, Nucleo de Pesquisa Em Desenvolvimento de Medicamentos (NPDM), Universidade Federal Do Ceara, Fortaleza, Brazil; Oswaldo Cruz Foundation (Fiocruz), Eusebio, Brazil
| | | | - Prem Prakash Sharma
- Laboratory for Translational Chemistry and Drug Discovery, Department of Chemistry, Hansraj College University Enclave, University of Delhi, Delhi, India
| | - Brijesh Rathi
- Laboratory for Translational Chemistry and Drug Discovery, Department of Chemistry, Hansraj College University Enclave, University of Delhi, Delhi, India
| | - Lindomar José Pena
- Department of Virology, Oswaldo Cruz Foundation, Fiocruz, 50740-465, Recife, PE, Brazil
| | - Patrick Rollin
- Universite D'Orleans et CNRS, ICOA, UMR 7311, BP 6759, F-45067, Orleans, France
| | - Arnaud Tatibouët
- Universite D'Orleans et CNRS, ICOA, UMR 7311, BP 6759, F-45067, Orleans, France
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Verma SK, Verma R, Kumar KSS, Banjare L, Shaik AB, Bhandare RR, Rakesh KP, Rangappa KS. A key review on oxadiazole analogs as potential methicillin-resistant Staphylococcus aureus (MRSA) activity: Structure-activity relationship studies. Eur J Med Chem 2021; 219:113442. [PMID: 33878562 DOI: 10.1016/j.ejmech.2021.113442] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 02/22/2021] [Accepted: 04/02/2021] [Indexed: 01/03/2023]
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) is becoming dangerous to human beings due to easy transmission mode and leading to the difficult-to-treat situation. The rapid resistance development of MRSA to many approved antibiotics is of major concern. There is a lot of scope to develop novel, efficient, specific, and nontoxic drug candidates to fight against MRSA isolates. The interesting molecular structure and adaptable feature of oxadiazole moiety which are bioisosteres of esters and amides, and these functional groups show improved resistance to esterases mediated hydrolytic cleavage, attracting researchers to develop required novel antibiotics based on oxadiazole core. This review summarizes the developments of oxadiazole-containing derivatives as potent antibacterial agents against multidrug-resistant MRSA strains and discussing the structure-activity relationship (SAR) in various directions. The current survey is the highlight of the present scenario of oxadiazole hybrids on MRSA studies, covering articles published from 2011 to 2020. This collective information may become a good platform to plan and develop new oxadiazole-based small molecule growth inhibitors of MRSA with minimal side effects.
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Affiliation(s)
- Santosh Kumar Verma
- School of Chemistry and Chemical Engineering, Yulin University, Yulin, 719000, Shaanxi, PR China; Shaanxi Key Laboratory of Low Metamorphic Coal Clean Utilization, Yulin University, Yulin, 719000, Shaanxi, PR China
| | - Rameshwari Verma
- School of Chemistry and Chemical Engineering, Yulin University, Yulin, 719000, Shaanxi, PR China; Shaanxi Key Laboratory of Low Metamorphic Coal Clean Utilization, Yulin University, Yulin, 719000, Shaanxi, PR China.
| | | | - Laxmi Banjare
- School of Pharmaceutical Sciences, Guru Ghasidas Central University, Bilaspur, Koni, 495009, Chhattisgarh, India
| | - Afzal B Shaik
- Department of Pharmaceutical Chemistry, Vignan Pharmacy College, Jawaharlal Nehru Technological University, Vadlamudi, 522213, Andhra Pradesh, India
| | - Richie R Bhandare
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, Ajman University, Ajman, United Arab Emirates; Centre of Medical and Bio-allied Health Sciences Research, Ajman Uniersity, Ajman, United Arab Emirates
| | - Kadalipura P Rakesh
- School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan, 430073, PR China
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Banik BK, Sahoo BM, Kumar BVVR, Panda KC, Jena J, Mahapatra MK, Borah P. Green Synthetic Approach: An Efficient Eco-Friendly Tool for Synthesis of Biologically Active Oxadiazole Derivatives. Molecules 2021; 26:molecules26041163. [PMID: 33671751 PMCID: PMC7927091 DOI: 10.3390/molecules26041163] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/30/2020] [Accepted: 01/07/2021] [Indexed: 11/23/2022] Open
Abstract
Green synthetic protocol refers to the development of processes for the sustainable production of chemicals and materials. For the synthesis of various biologically active compounds, energy-efficient and environmentally benign processes are applied, such as microwave irradiation technology, ultrasound-mediated synthesis, photo-catalysis (ultraviolet, visible and infrared irradiation), molecular sieving, grinding and milling techniques, etc. Thesemethods are considered sustainable technology and become valuable green protocol to synthesize new drug molecules as theyprovidenumerous benefits over conventional synthetic methods.Based on this concept, oxadiazole derivatives are synthesized under microwave irradiation technique to reduce the formation of byproduct so that the product yield can be increased quantitatively in less reaction time. Hence, the synthesis of drug molecules under microwave irradiation follows a green chemistry approach that employs a set of principles to minimize or remove the utilization and production of hazardous toxic materials during the design, manufacture and application of chemical substances.This approach plays a major role in controlling environmental pollution by utilizing safer solvents, catalysts, suitable reaction conditions and thereby increases the atom economy and energy efficiency. Oxadiazole is a five-membered heterocyclic compound that possesses one oxygen and two nitrogen atoms in the ring system.Oxadiazole moiety is drawing considerable interest for the development of new drug candidates with potential therapeutic activities including antibacterial, antifungal, antiviral, anticonvulsant, anticancer, antimalarial, antitubercular, anti-asthmatic, antidepressant, antidiabetic, antioxidant, antiparkinsonian, analgesic and antiinflammatory, etc. This review focuses on different synthetic approaches of oxadiazole derivatives under microwave heating method and study of their various biological activities.
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Affiliation(s)
- Bimal Krishna Banik
- Department of Mathematics and Natural Sciences, College of Sciences and Human Studies, Prince Mohammad Bin Fahd University, Al Khobar 31952, Saudi Arabia
- Correspondence: (B.K.B.); (B.M.S.)
| | - Biswa Mohan Sahoo
- Roland Institute of Pharmaceutical Sciences, Biju Patnaik University of Technology Nodal Centre of Research, Berhampur 760010, India; (B.V.V.R.K.); (K.C.P.); (J.J.)
- Correspondence: (B.K.B.); (B.M.S.)
| | - Bera Venkata Varaha Ravi Kumar
- Roland Institute of Pharmaceutical Sciences, Biju Patnaik University of Technology Nodal Centre of Research, Berhampur 760010, India; (B.V.V.R.K.); (K.C.P.); (J.J.)
| | - Krishna Chandra Panda
- Roland Institute of Pharmaceutical Sciences, Biju Patnaik University of Technology Nodal Centre of Research, Berhampur 760010, India; (B.V.V.R.K.); (K.C.P.); (J.J.)
| | - Jasma Jena
- Roland Institute of Pharmaceutical Sciences, Biju Patnaik University of Technology Nodal Centre of Research, Berhampur 760010, India; (B.V.V.R.K.); (K.C.P.); (J.J.)
| | | | - Preetismita Borah
- CSIR-Central Scientific Instruments Organization, Chandigarh 160030, India;
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