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Synthesis, Characterization, Crystal Structure and DFT Calculations of DysprosiumIII - (E)-Ethyl-4-(2-Hydroxybenzylidene Amino)Benzoate. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Tariq S, Mutahir S, Khan MA, Mutahir Z, Hussain S, Ashraf M, Bao X, Zhou B, Stark CB, Khan IU. Synthesis, in vitro cholinesterase inhibition, molecular docking, DFT and ADME studies of novel 1,3,4-oxadiazole 2-thiol derivatives. Chem Biodivers 2022; 19:e202200157. [PMID: 35767725 DOI: 10.1002/cbdv.202200157] [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] [Received: 02/18/2022] [Accepted: 06/29/2022] [Indexed: 11/11/2022]
Abstract
A sequence of 1,3,4-oxadiazole 2-thiol derivatives bearing various alkyl or aryl moieties was designed, synthesized, and characterized by modern spectroscopic methods to yield 17 compounds ( 6a - 6q ) which were screened for acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) enzymes in search of 'lead' compounds for the treatment of Alzheimer disease (AD). The compounds 6q, 6p, 6k, 6o, and 6l showed inhibitory capability against AChE and BChE, with IC 50 values ranging from 11.730.49 to 27.360.29 µM for AChE and 21.830.39 to 39.430.44 µM for BChE, inhibiting both enzymes within a limited range. The SAR ascertained that the substitution of the aromatic moiety had a profound effect on the AChE and BChE inhibitory potential as compared to the aliphatic substitutions which were supported by the molecular docking studies. In silico ADME studies reinforced the drug-likeness of most of the synthesized molecules. These results were additionally supplemented by the molecular orbital analysis (HOMO-LUMO) and electrostatic potential maps got from DFT calculations. ESP maps expose that on all structures, there are two potential binding sites conquered by the most positive and most negative districts.
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Affiliation(s)
- Sidrah Tariq
- Government College University Lahore, Department of Chemitry, Anarkaly Lahore, 54000, Lahore, PAKISTAN
| | - Sadaf Mutahir
- University of Sialkot, Department of Chemitry, Daska Road Sialkot, Sialkot, PAKISTAN
| | - Muhammad Asim Khan
- Nanjing University of Science and Technology, School of Chemical Engineering, Xiaolingwei 200, Nanjing 210094, 210000, China, 210000, Nanjing, CHINA
| | - Zeeshan Mutahir
- University of the Punjab Quaid-i-Azam Campus: University of the Punjab, Institute of Biochemistry and Biotechnology, University of the Punjab, 54590 Lahore, Pakistan, Lahore, PAKISTAN
| | - Safdar Hussain
- Islamia University: The Islamia University of Bahawalpur Pakistan, Department of Chemitry, Bahwalpur, Bahwalpur, PAKISTAN
| | - Muhammad Ashraf
- Islamia University: The Islamia University of Bahawalpur Pakistan, Department of Chemitry, Bahwalpur, Government College University Lahore, 54000, Bahwalpur, PAKISTAN
| | - Xiaofang Bao
- Nanjing University of Science and Technology, School of Chemical Engineering, Room No. 104. 2nd Old Chemical Building, School of Chemical Engineering, 210094, 210094, Nanjing, CHINA
| | - Baojing Zhou
- Nanjing University of Science and Technology, School of Chemical Engineering, Room No. 104. 2nd Old Chemical Building, School of Chemical Engineering, 210094, 210094, Nanjing, CHINA
| | - Christian Bw Stark
- Universitat Hamburg Zentralbibliothek Recht: Universitat Hamburg, Fachbereich Chemie, Institut für Organische Chemie, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany, Hamburg, GERMANY
| | - Islam Ullah Khan
- University of Mianwali, Department of Chemistry/VC Office, VC Office, Department of Chemistry, University of Mianwali, Pakistan, Mianwali, PAKISTAN
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Synthesis, X-ray Single-Crystal Analysis, and Anticancer Activity Evaluation of New Alkylsulfanyl-Pyridazino[4,5-b]indole Compounds as Multitarget Inhibitors of EGFR and Its Downstream PI3K-AKT Pathway. CRYSTALS 2022. [DOI: 10.3390/cryst12030353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Abstract
The alkylation of 3,5-dihydro-4H-pyridazino[4,5-b]indole-4-thione with benzyl bromide, ethyl chloroacetate, and allyl bromide in the presence of potassium carbonate (K2CO3) yielded new alkylsulfanylpyridazino[4,5-b]indole derivatives (i.e., compounds 4–6). Hydrazinolysis of ester 6 resulted in hydrazide 7. The structure of compound 6 was verified by X-ray single-crystal analysis. Among the synthesized compounds, compound 6 exhibited the most promising cytotoxicity toward MCF-7 cells with an IC50 value of 12 µM. It showed potential inhibition activity toward EGFR, PI3K, and AKT in MCF-7 cells, with 0.26-, 0.49-, and 0.31-fold reductions in concentration compared to an untreated control. Additionally, it showed apoptosis-inducing activity in MCF-7 cells (47.98-fold); overall apoptosis increased to 38.87% compared to 0.81% in the untreated control, which disrupted the cell cycle at pre-G1 and S phases. Moreover, compound 6 exhibited good binding affinities toward the tested proteins (EGFR, PI3K, and AKT) and had binding energies ranging from −15.87 to −24.87 Kcal/mol. It also formed good interactions with essential amino acids inside the binding sites. Hence, compound 6 is recommended as an anti-breast cancer chemotherapeutic due to its effects on the EGFR-PI3K-AKT pathway.
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Synthesis of New Ursane-Type Hybrids with Morpholinomethyl-, Dialkylamino-, and Hydroxyl-Substituted Azoles. Chem Nat Compd 2022. [DOI: 10.1007/s10600-022-03597-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Long B, Tian B, Tang Q, Hu X, Han L, Wang Z, Wang C, Wu Y, Yu Y, Gan Z. A KHSO4 mediated facile synthesis of 2-amino-1,3,4-oxadiazole derivatives. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132382] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Glomb T, Świątek P. Antimicrobial Activity of 1,3,4-Oxadiazole Derivatives. Int J Mol Sci 2021; 22:6979. [PMID: 34209520 PMCID: PMC8268636 DOI: 10.3390/ijms22136979] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 06/25/2021] [Accepted: 06/25/2021] [Indexed: 01/09/2023] Open
Abstract
The worldwide development of antimicrobial resistance forces scientists to search for new compounds to which microbes would be sensitive. Many new structures contain the 1,3,4-oxadiazole ring, which have shown various antimicrobial activity, e.g., antibacterial, antitubercular, antifungal, antiprotozoal and antiviral. In many publications, the activity of new compounds exceeds the activity of already known antibiotics and other antimicrobial agents, so their potential as new drugs is very promising. The review of active antimicrobial 1,3,4-oxadiazole derivatives is based on the literature from 2015 to 2021.
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Affiliation(s)
| | - Piotr Świątek
- Department of Medicinal Chemistry, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211, 50-556 Wroclaw, Poland;
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