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Electrophilically activated nitroalkanes in the synthesis of substituted 1,3,4-oxadiazoles from amino acid derivatives. Chem Heterocycl Compd (N Y) 2022. [DOI: 10.1007/s10593-022-03053-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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2
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Hamdani SS, Khan BA, Hameed S, Batool F, Saleem HN, Mughal EU, Saeed M. Synthesis and evaluation of novel S-benzyl- and S-alkylphthalimide- oxadiazole -benzenesulfonamide hybrids as inhibitors of dengue virus protease. Bioorg Chem 2020; 96:103567. [PMID: 32062063 DOI: 10.1016/j.bioorg.2020.103567] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 01/01/2020] [Accepted: 01/02/2020] [Indexed: 12/18/2022]
Abstract
Direct acting antiviral drugs (DAADs) are becoming therapeutics of choice for the treatment of viral infections. Successful development of anti HIV and HCV drugs by targeting the viral proteases has provided impetus for discovering newer DAADs. Dengue virus (DENV) protease, which is composed of two nonstructural proteins, NS2B and NS3pro, can be likewise exploited for discovering new anti-dengue therapeutics. In this study, we have linked together two pharmaceutically interesting motifs, namely 1,3,4-oxadiazole and benzenesulfonamide in two alternative series to develop novel S-benzylated and S-alkylphthalimidated hybrids. For the first series of hybrids, 4-aminobenzoic acid (1) was reacted with substituted benzenesulfonyl chlorides via its amino group, whereas the carboxylic acid side was elaborated to sulfonamido-1,3,4-oxadiazole-2-thiols (6a/b) in three steps. At this stage, the intermediates 6a/b were bifurcated to either S-alkylphthalimidated (8a-j) or S-benzylated (9a-c) hybrids by reacting with corresponding halides. For the alternative series of hybrids, the carboxylic acid group of probenecid (10) was similarly elaborated to sulfonamido-1,3,4-oxadiazole-2-thiols (13), and diverged to S-alkylphthalimidated (14a-f) and S-benzylated hybrids (15a-e). Bioactivity assays demonstrated that 8g and 8h are the most potent inhibitors among the synthesized analogs, exhibiting the IC50 values of 13.9 μM and 15.1 μM, respectively. Computational assessment predicted the binding of the inhibitors at an allosteric site developed in the open conformation of DENV2 NS2B/NS3pro. Taken together these findings point out that the synthesized hybrid inhibitors possess a great potential for further antiviral drug development.
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Affiliation(s)
- Syeda Shamila Hamdani
- Department of Chemistry, University of Azad Jammu and Kashmir, Muzaffarabad 13100 AJK, Pakistan; Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Bilal Ahmad Khan
- Department of Chemistry, University of Azad Jammu and Kashmir, Muzaffarabad 13100 AJK, Pakistan.
| | - Shahid Hameed
- Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Farwa Batool
- Department of Chemistry and Chemical Engineering, Syed Babar Ali School of Science and Engineering, Lahore University of Management Sciences, Lahore 54792 Pakistan
| | - Hafiza Nosheen Saleem
- Department of Chemistry and Chemical Engineering, Syed Babar Ali School of Science and Engineering, Lahore University of Management Sciences, Lahore 54792 Pakistan
| | | | - Muhammad Saeed
- Department of Chemistry and Chemical Engineering, Syed Babar Ali School of Science and Engineering, Lahore University of Management Sciences, Lahore 54792 Pakistan.
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Kumar D, Kumar V, Marwaha R, Singh G. Oxadiazole-An Important Bioactive Scaffold for Drug Discovery and Development Process Against HIV and Cancer- A Review. ACTA ACUST UNITED AC 2019. [DOI: 10.2174/1573407213666171017160359] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Acquired immunodeficiency syndrome (AIDS) and cancer treatment have been
a major task for research scientists and pharmaceutical industry for the last many years. Seeking to the
development, many promising chemical entities especially five-membered heterocyclic rings like oxadiazole
have revealed good anticancer and anti HIV activities. The current review enlists some recently
developed anti-HIV and anti-cancer oxadiazole moieties.
Methods:
on the basis of structural modification for the syntheses of new oxadiazole analogs, the new
anti-HIV and anti-cancer agents have been summarized, which can improve treatment of AIDs and cancer.
Results:
The oxadiazole ring is more potent in comparison to some other heterocyclic rings (five and
six membered) towards anti-HIV and anti-cancer activities. The important mechanisms involved for anti
HIV and anticancer activity are mainly inhibition of enzymes like protease, HIV-integrase, telomerase,
histone deacetylase, methionine amino peptidase, thymidylate synthase and focal adhesion kinase and
inhibition of some growth factors.
Conclusion:
By reviving the past literature about 50 most potent oxadiazole derivatives, depending
upon activity and structural modifications, have been selected as potent anti-HIV, and anti-cancer
agents. Thus, oxadiazole seems to be a ‘privileged structure’ for further screening and syntheses of the
new drug analogs against life threatening HIV and cancer like diseases.
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Affiliation(s)
- Davinder Kumar
- College of Pharmacy, PGIMS, University of Health Sciences, Rohtak-124001, India
| | - Virender Kumar
- College of Pharmacy, PGIMS, University of Health Sciences, Rohtak-124001, India
| | - Rakesh Marwaha
- Department of Pharmaceutical sciences, M. D University Rohtak-124001, India
| | - Gajendra Singh
- College of Pharmacy, PGIMS, University of Health Sciences, Rohtak-124001, India
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Andleeb H, Khan I, Franconetti A, Tahir MN, Simpson J, Hameed S, Frontera A. Diverse structural assemblies of U-shaped hydrazinyl-sulfonamides: experimental and theoretical analysis of non-covalent interactions stabilizing solid state conformations. CrystEngComm 2019. [DOI: 10.1039/c8ce01917g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The preparation and structures of five new U-shaped hydrazinyl-sulfonamides are reported.
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Affiliation(s)
- Hina Andleeb
- Department of Chemistry
- Quaid-i-Azam University
- Islamabad-45320
- Pakistan
| | - Imtiaz Khan
- Department of Chemistry
- Quaid-i-Azam University
- Islamabad-45320
- Pakistan
- School of Chemistry & Manchester Institute of Biotechnology
| | - Antonio Franconetti
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma de Mallorca (Baleares)
- Spain
| | | | - Jim Simpson
- Department of Chemistry
- University of Otago
- Dunedin
- New Zealand
| | - Shahid Hameed
- Department of Chemistry
- Quaid-i-Azam University
- Islamabad-45320
- Pakistan
| | - Antonio Frontera
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma de Mallorca (Baleares)
- Spain
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Anti-inflammatory, anti-rheumatic and analgesic activities of 2-(5-mercapto-1,3,4-oxadiazol-2-yl)-N-propylbenzenesulphonamide (MOPBS) in rodents. Inflammopharmacology 2018; 26:1037-1049. [DOI: 10.1007/s10787-018-0446-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 01/29/2018] [Indexed: 01/08/2023]
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Navin P, Sarvil P, Amit P, Divyesh P, Dhansukh R, Moo-Puc R, Rivera G. Synthesis and biological evaluation of newer 1,3,4-oxadiazoles incorporated with benzothiazepine and benzodiazepine moieties. ACTA ACUST UNITED AC 2017; 72:133-146. [PMID: 28182579 DOI: 10.1515/znc-2016-0129] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Accepted: 12/28/2016] [Indexed: 11/15/2022]
Abstract
A series of thiazepines and diazepines having 1,3,4-oxadiazole moiety were synthesized, and they were analyzed for their in vitro antimicrobial activity against several bacteria (Staphylococcus aureus, Staphylococcus pyogenes, Escherichia coli, and Pseudomonas aeruginosa) and fungi (Candida albicans, Aspergillus niger, and Aspergillus Clavatus) and protozoa (Entamoeba histolytica, Giardia lamblia, Trypanosoma cruzi and Leishmania mexicana). Few of the selected compounds were tested for their antitubercular activity. However, it was noticed that the potency of final analogs against each strain placed reliance on the type of substituent present on aryl ring of oxadiazole as well as presence of thiophene, pyridine, and furan at benzothiazepines and benzodiazepines. The biological screening identified that some of the compounds were found to possess good antimicrobial and antitubercular (62.5-100 μg/mL of MIC) activity.
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Affiliation(s)
- Patel Navin
- Organic Research Laboratory, Department of Chemistry, Veer Narmad South Gujarat University, Udhana-Magdalla Road, Surat-395 007, Gujarat, India, E-mail:
| | - Patel Sarvil
- Organic Research Laboratory, Department of Chemistry, Veer Narmad South Gujarat University, Udhana-Magdalla Road, Surat-395 007, Gujarat, India
| | - Purohit Amit
- Organic Research Laboratory, Department of Chemistry, Veer Narmad South Gujarat University, Udhana-Magdalla Road, Surat-395 007, Gujarat, India
| | - Patel Divyesh
- Department of Chemistry, Faculty of Science, The M.S. University of Baroda, Vadodara-390 002, Gujarat, India
| | - Rajani Dhansukh
- Microcare Laboratory and Tuberculosis Diagnosis and Research Center, Surat, India
| | - Rosa Moo-Puc
- Unidad Medica de Alta Especialidad, Instituto Mexicano del Seguro Social, Merida 97150, México
| | - Gildardo Rivera
- Centro de Biotecnología Genómica, Instituto Politécnico Nacional, Reynosa 88710, México
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El-Sabbagh OI. Synthesis of some new benzisothiazolone and benzenesulfonamide derivatives of biological interest starting from saccharin sodium. Arch Pharm (Weinheim) 2013; 346:733-42. [PMID: 24038507 DOI: 10.1002/ardp.201300110] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2013] [Revised: 07/23/2013] [Accepted: 07/26/2013] [Indexed: 11/08/2022]
Abstract
Two new series of benzenesulfonamide (4a-f, 5a-b, 6, 7) and 1,2-benzisothiazol-3(2H)-one-1,1-dioxide (9a-c, 10, 12a-d) derivatives were prepared starting from saccharin sodium. The novel compounds were characterized using elemental analyses and different spectroscopic methods. Assessment of the antiviral activities of these novel compounds against a broad panel of viruses in different cell cultures revealed that only the thiazole derivatives belonging to the benzisothiazol-3(2H)-one-1,1-dioxide series are the active ones. All thiazole derivatives 12a-d showed activity against both varicella-zoster virus, especially TK(-) VZV strain 07-1, and the cytomegalovirus strains AD-169 and Davis in human embryonic lung (HEL) cell culture.
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Affiliation(s)
- Osama I El-Sabbagh
- Faculty of Pharmacy, Pharmaceutical Chemistry Department, Taif University, Taif, Saudi Arabia; Faculty of Pharmacy, Medicinal Chemistry Department, Zagazig University, Zagazig, Egypt
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Farman M, Khanum S, Hameed S, Jones PG, Ahmad T. 4-Eth-oxy-benzohydrazide. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o2955-6. [PMID: 23125739 PMCID: PMC3470326 DOI: 10.1107/s1600536812038998] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2012] [Accepted: 09/12/2012] [Indexed: 11/26/2022]
Abstract
The title compound, C9H12N2O2, is approximately planar (r.m.s. deviation = 0.13 Å for all non-H atoms). The carbonyl O atom is involved as acceptor in three different hydrogen-bond interactions. One N—H⋯O and the C—H⋯O(carbonyl) contact together with a weak C—H⋯O(ethoxy) interaction link the molecules into sheets parallel to (102). These are further linked into a three-dimensional network via the remaining C—H⋯O(carbonyl) hydrogen bond and a C(methylene)—H⋯π interaction
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Affiliation(s)
- Muhammad Farman
- Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
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Ton TMU, Himawan F, Chang JWW, Chan PWH. Copper(II) triflate catalyzed amination of 1,3-dicarbonyl compounds. Chemistry 2012; 18:12020-7. [PMID: 22890890 DOI: 10.1002/chem.201201219] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2012] [Indexed: 11/11/2022]
Abstract
A method to prepare α,α-acyl amino acid derivatives efficiently by Cu(OTf)(2)+1,10-phenanthroline (1,10-phen)-catalyzed amination of 1,3-dicarbonyl compounds with PhI=NSO(2) Ar is described. The mechanism is thought to initially involve aziridination of the enolic form of the substrate, formed in situ through coordination to the Lewis acidic metal catalyst, by the putative copper-nitrene/imido species generated from the reaction of the metal catalyst with the iminoiodane source. Subsequent ring opening of the resultant aziridinol adduct under the Lewis acidic conditions then provided the α-aminated product. The utility of this method was exemplified by the enantioselective synthesis of a precursor of 3-styryl-2-benzoyl-L-alanine.
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Affiliation(s)
- Thi My Uyen Ton
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
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10
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Ethyl 2,6-Dimethoxybenzoate: Synthesis, Spectroscopic and X-ray Crystallographic Analysis. CRYSTALS 2012. [DOI: 10.3390/cryst2020521] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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11
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Syed T, Hameed S, Jones PG. (S)-N-[1-(5-Benzyl-sulfan-yl-1,3,4-oxa-diazol-2-yl)-2-phenyl-eth-yl]-4-methyl-benzene-sulfonamide. Acta Crystallogr Sect E Struct Rep Online 2011; 67:o2875-6. [PMID: 22219915 PMCID: PMC3247610 DOI: 10.1107/s1600536811040669] [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: 09/23/2011] [Accepted: 10/03/2011] [Indexed: 11/30/2022]
Abstract
The title compound, C(24)H(23)N(3)O(3)S(2), crystallizes with two independent mol-ecules in the asymmetric unit. They differ essentially in the orientation of the tolyl rings, between which there is π-π stacking (centroid-centroid distance = 3.01 Å). The absolute configuration was confirmed by the determination of the Flack parameter [x = 0.008 (9)]. In the crystal, mol-ecules are connected by two classical N-H⋯N hydrogen bonds and two weak but very short C-H⋯O(sulfon-yl) inter-actions, forming layers lying parallel to the bc plane.
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Affiliation(s)
- Tayyaba Syed
- Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Shahid Hameed
- Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Peter G. Jones
- Institut for Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
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12
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Syed T, Hameed S, Jones PG. (S)-N-{1-[5-(4-Chloro-benzyl-sulfanyl)-1,3,4-oxadiazol-2-yl]eth-yl}-4-methyl-benzene-sulfonamide. Acta Crystallogr Sect E Struct Rep Online 2011; 67:o2793. [PMID: 22064948 PMCID: PMC3201458 DOI: 10.1107/s1600536811039134] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2011] [Accepted: 09/23/2011] [Indexed: 11/27/2022]
Abstract
The title compound, C18H18ClN3O3S2, adopts by folding the form of a distorted disc. Interplanar angles are 29.51 (7) and 63.43 (7)° from the five-membered ring to the aromatic systems and 34.80 (6)° between these two latter rings. The absolute configuration was confirmed by determination of the Flack parameter. In the crystal, the molecules are linked by four hydrogen bonds, one classical (N—H⋯N) and three ‘weak’ (C—H⋯O), forming layers parallel to the ac plane; these are in turn linked in the third dimension by Cl⋯N [3.1689 (16) Å] and Cl⋯O [3.3148 (13) Å] contacts to the heterocyclic ring.
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