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Taha M, Uddin N, Saad SM, Iqbal N, Fareed G, Anouar EH, Hassan MH, Almandil NB, Salahuddin M, Khan KM, Wadood A, Rahman AU. An effort to find new α -amylase inhibitors as potent antidiabetics compounds based on indole-based-thiadiazole analogs. J Biomol Struct Dyn 2022; 40:13103-13114. [PMID: 34569449 DOI: 10.1080/07391102.2021.1982774] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Inhibition of α-amylase enzyme is of key significance for the therapy of diabetes mellitus (DM). Numerous indole-based compounds have earlier been described for broad range of bioactivities. From our previous study, we knew that indole and thiadiazole are potent inhibitors of diabetics II. We design the hybrid molecules of them and synthesized 18 derivatives of indole-based-thiadiazole (1-18). All synthesized compounds were characterized using different spectroscopic methods and evaluated for their α-amylase inhibitory activities. All synthetic compounds, except 4, 13, 15 and 16, were found to be strongly active (IC50 values in the range of 0.80 ± 0.05 - 9.30 ± 0.20 µM) than the standard drug, acarbose (IC50 = 11.70 ± 0.10 µM). Nevertheless, compound 18 was found to be inactive. The modes of binding interactions of five most active compounds 2, 3, 5, 10 and 17 were also studies through molecular docking study. In brief, current study identifies a novel class of α-amylase inhibitors which can be further studied for the treatment of hyperglycemia and obesity.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Muhammad Taha
- Department of Clinical Pharmacy, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Nizam Uddin
- Department of Chemistry, University of Karachi, Karachi, Pakistan
| | | | - Naveed Iqbal
- Department of Chemistry, University of Poonch, Rawalakot, Pakistan
| | - Ghulam Fareed
- Pharmaceutical Research Center, PCSIR Laboratories Complex Karachi, Karachi, Pakistan
| | - El Hassane Anouar
- Department of Chemistry, College of Science and Humanities in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Maya Haj Hassan
- Department of Biology, Faculty of Sciences, Lebanese University, Zahle Lebanon
| | - Noor Barak Almandil
- Department of Clinical Pharmacy, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Mohammed Salahuddin
- Department of Clinical Pharmacy, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Khalid Mohammed Khan
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Abdul Wadood
- Department of Biochemistry, Abdul Wali Khan University Mardan, Mardan, Pakistan
| | - Ashfaq Ur Rahman
- Department of Biochemistry, Abdul Wali Khan University Mardan, Mardan, Pakistan
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Diverse Biological Activities of 1,3,4-Thiadiazole Scaffold. CHEMISTRY 2022. [DOI: 10.3390/chemistry4040107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The chemistry of 1,3,4-thiadiazole is one of the most interesting scaffolds for synthesizing new drug molecules due to their numerous pharmacological activities. Several modifications in the thiadiazole ring have been made, proving it to be more potent and highly effective with a less toxic scaffold for various biological activities. There are several marketed drugs containing 1,3,4-thiadiazole ring in their structure. In this review article, we have tried to compile the newly synthesized 1,3,4-thiadiazole derivatives possessing important pharmaceutical significance since 2014.
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de Lócio LL, do Nascimento APS, Santos MB, Gomes JNS, de Medeiros E Silva YMS, Albino SL, Dos Santos VL, de Moura RO. Application of Heterocycles as an Alternative for the Discovery of New Anti-ulcer Compounds: A Mini-Review. Curr Pharm Des 2022; 28:1373-1388. [PMID: 35549862 DOI: 10.2174/1381612828666220512095559] [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: 11/18/2021] [Accepted: 02/06/2022] [Indexed: 11/22/2022]
Abstract
Peptic ulcer is a lesion located in the esophagus, stomach, and upper intestine, caused by an imbalance between acid secretion and the release of protective mucus. This pathology is prevalent in approximately 14% of the world population and is commonly treated with proton pump inhibitors and type 2 histaminergic receptor antagonists, however, these drugs present concerning side effects that may lead to gastric cancer. In this sense, this research aimed to present the main heterocyclics studied in recent years. The screening method for the choice of articles was based on the selection of publications between 2000 and 2021 present in the Science Direct, Web of Science, Capes, and Scielo databases, by using the descriptors ''new derivatives'', "heterocyclics" "antiulcerogenic", "gastroprotective" and "antisecretor". This research showed that the most used rings in the development of antiulcer drugs were benzimidazole, quinazoline, thiazole, and thiadiazole. The results also portray several types of modern in silico, in vitro and in vivo assays, as well as the investigation of different mechanisms of action, with emphasis on proton pump inhibition, type 2 histaminergic receptor blockers, potassium competitive acid blockers, type E prostaglandin agonism, anti-secretory activity and antioxidant action. Additionally, the review evidenced the presence of the nitrogen atom in the heterocyclic ring as a determinant of the potential of the compound. This research suggests new alternatives for the treatment of gastric lesions, which may be more potent and cause fewer side effects than the currently used, and tend to evolve into more advanced studies in the coming years.
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Affiliation(s)
- Lucas Linhares de Lócio
- State University of Paraíba, R. Baraúnas, 351, Cidade Universitária, Campina Grande, Paraíba, 58429-500, Brasil
| | | | - Mirelly Barbosa Santos
- State University of Paraíba, R. Baraúnas, 351, Cidade Universitária, Campina Grande, Paraíba, 58429-500, Brasil
| | - Joilly Nilce Santana Gomes
- State University of Paraíba, R. Baraúnas, 351, Cidade Universitária, Campina Grande, Paraíba, 58429-500, Brasil
| | | | - Sonaly Lima Albino
- State University of Paraíba, R. Baraúnas, 351, Cidade Universitária, Campina Grande, Paraíba, 58429-500, Brasil
| | - Vanda Lúcia Dos Santos
- State University of Paraíba, R. Baraúnas, 351, Cidade Universitária, Campina Grande, Paraíba, 58429-500, Brasil
| | - Ricardo Olímpio de Moura
- State University of Paraíba, R. Baraúnas, 351, Cidade Universitária, Campina Grande, Paraíba, 58429-500, Brasil
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Velmurugan K, Don D, Kannan R, Selvaraj C, VishnuPriya S, Selvaraj G, Singh SK, Nandhakumar R. Synthesis, antibacterial, anti-oxidant and molecular docking studies of imidazoquinolines. Heliyon 2021; 7:e07484. [PMID: 34286142 PMCID: PMC8273425 DOI: 10.1016/j.heliyon.2021.e07484] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 06/26/2021] [Accepted: 07/01/2021] [Indexed: 12/24/2022] Open
Abstract
Quinoline and imidazole derivatives have been playing a significant role in functional bioactivities and were potentially used as antibacterial, antifungal, anticancer, and anti-inflammatory drugs. Owing to the limitation of drug resistance, herein we synthesized thio-, chloro-, and hydroxyl-functionalized various imidazoquinolines by molecular hybridization approach. All the imidazoquinoline derivatives were examined for their antibacterial activity against selected bacterial pathogens by the agar well diffusion method. In addition, the anti-oxidant efficacy of imidazoquinolines was also tested using ferric reducing antioxidant power (FRAP). Among them, electron-withdrawing (-Cl) substituent containing imidazoquinoline 5f showed higher antibacterial and anti-oxidant activities than other imidazoquinolines and reached the effectiveness of the standard. In addition, compounds 4f, 5e, and 3f showed moderate antibacterial activity and other derivatives displayed weak activity against various pathogens. Molecular docking studies were also performed on selected imidazoquinoline derivatives (3f, 4f, and 5f), which showed high docking score and strong binding energy values. These results revealed that thio-imidazoquinoline could assist as a prototype for the designing of multidrug-resistant antibiotics against various microbial organisms.
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Affiliation(s)
- K Velmurugan
- Department of Applied Chemistry, Karunya Institute of Technology and Sciences (Deemed-to-be University), Karunya Nagar, Coimbatore, 641 114, India
| | - Derin Don
- Department of Applied Chemistry, Karunya Institute of Technology and Sciences (Deemed-to-be University), Karunya Nagar, Coimbatore, 641 114, India
| | - Rajesh Kannan
- Department of Microbiology, Bharathidasan Univeristy, Tiruchirappalli, 620 024, India
| | - C Selvaraj
- Computer Aided Drug Design and Molecular Modeling Lab, Department of Bioinformatics, Science Block, Alagappa University, Karaikudi, 630004, Tamil Nadu, India
| | - S VishnuPriya
- Department of Medical Neurobiology, Institute for Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School, Jerusalem, 91120, Israel
| | - G Selvaraj
- Centre for Interdisciplinary Sciences-Computational Life Sciences, College of Food Science and Technology, Henan University of Technology, Zhengzhou, China
| | - S K Singh
- Computer Aided Drug Design and Molecular Modeling Lab, Department of Bioinformatics, Science Block, Alagappa University, Karaikudi, 630004, Tamil Nadu, India
| | - R Nandhakumar
- Department of Applied Chemistry, Karunya Institute of Technology and Sciences (Deemed-to-be University), Karunya Nagar, Coimbatore, 641 114, India
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Ismail MF, Madkour HMF, Salem MS, Mohamed AMM, Aly AF. Design, synthesis and insecticidal activity of new 1,3,4-thiadiazole and 1,3,4-thiadiazolo[3,2-a]pyrimidine derivatives under solvent-free conditions. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1945106] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Mahmoud F. Ismail
- Department of Chemistry, Faculty of Science, Ain Shams University, Cairo, Egypt Abbassia
| | - Hassan M. F. Madkour
- Department of Chemistry, Faculty of Science, Ain Shams University, Cairo, Egypt Abbassia
| | - Marwa S. Salem
- Department of Chemistry, Faculty of Science, Ain Shams University, Cairo, Egypt Abbassia
| | - Ali M. M. Mohamed
- Department of Chemistry, Faculty of Science, Ain Shams University, Cairo, Egypt Abbassia
| | - Aly Fahmy Aly
- Central Agricultural Pesticide Lab., Pesticide Formulations Department, Agricultural research Center, Giza, Egypt Dokky
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Ngoc Toan V, Dinh Thanh N, Minh Tri N. 1,3,4-Thiadiazoline−coumarin hybrid compounds containing D-glucose/D-galactose moieties: Synthesis and evaluation of their antiproliferative activity. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103053] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
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Mohammed SJ, Salih AK, Rashid MAM, Omer KM, Abdalkarim KA. Synthesis, Spectroscopic Studies and Keto-Enol Tautomerism of Novel 1,3,4-Thiadiazole Derivative Containing 3-Mercaptobutan-2-one and Quinazolin-4-one Moieties. Molecules 2020; 25:molecules25225441. [PMID: 33233669 PMCID: PMC7699804 DOI: 10.3390/molecules25225441] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 10/05/2020] [Accepted: 10/06/2020] [Indexed: 11/16/2022] Open
Abstract
In this study, a novel 1,3,4-thiadiazole derivative containing 3-mercaptobutan-2-one and quinazolin-4-one moieties (Compound 3) is synthesized by the coupling of 2-amino-1,3,4-thiadiazole-5-(3-mercaptobutan-2-one) (Compound 1) with 2-Phenyl-4H-3,1-benzoxazin-4-one (Compound 2) in one molecule moiety. Compound 3 is found to exist as two types of intra-molecular hydrogen bonding with keto-enol tautomerism characters, which is further confirmed using FTIR, 1H-NMR, 13C-NMR, mass spectrometer, and UV-Visible spectra. The 1H-NMR and UV-Visible spectra of Compound 3 are investigated in different solvents such as methanol, chloroform, and DMSO. Compound 3 exhibits keto-enol tautomeric forms in solvents with different percentage ratios depending on the solvent polarity. The 1H-NMR and UV-Visible spectral results show that Compound 3 favors the keto over the enol form in polar aprotic solvents such as DMSO and the enol over the keto form in non-polar solvents such as chloroform. The 13C-NMR spectrum gives two singles at δ 204.5 ppm, due to ketonic carbon, and δ 155.5 ppm, due to enolic carbon, confirming the keto-enol tautomerism of Compound 3. Furthermore, the molecular ion at m/z 43 and m/z 407 in the mass spectrum of Compound 3 and fragmentation mechanisms proposed reveal the existence of the keto and enol forms, respectively.
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Affiliation(s)
- Sewara J. Mohammed
- Department of Chemistry, College of Science, University of Sulaimani, Qlyasan Street, Kurdistan Regional Government, Sulaimani 46002, Iraq; (A.K.S.); (M.A.M.R.); (K.A.A.)
- Correspondence: (S.J.M.); (K.M.O.); Tel.: +964-770-193-2570 (S.J.M.); +964-770-505-6061 (K.M.O.)
| | - Akam K. Salih
- Department of Chemistry, College of Science, University of Sulaimani, Qlyasan Street, Kurdistan Regional Government, Sulaimani 46002, Iraq; (A.K.S.); (M.A.M.R.); (K.A.A.)
| | - Mohammad Amin M. Rashid
- Department of Chemistry, College of Science, University of Sulaimani, Qlyasan Street, Kurdistan Regional Government, Sulaimani 46002, Iraq; (A.K.S.); (M.A.M.R.); (K.A.A.)
| | - Khalid M. Omer
- Department of Chemistry, College of Science, University of Sulaimani, Qlyasan Street, Kurdistan Regional Government, Sulaimani 46002, Iraq; (A.K.S.); (M.A.M.R.); (K.A.A.)
- Komar Research Center (KRC), Komar University of Science and Technology, Kurdistan Regional Government, Sulaimani 46002, Iraq
- Correspondence: (S.J.M.); (K.M.O.); Tel.: +964-770-193-2570 (S.J.M.); +964-770-505-6061 (K.M.O.)
| | - Karzan A. Abdalkarim
- Department of Chemistry, College of Science, University of Sulaimani, Qlyasan Street, Kurdistan Regional Government, Sulaimani 46002, Iraq; (A.K.S.); (M.A.M.R.); (K.A.A.)
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