1
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Punna SK, Arockiaraj M, Rajeshkumar V. I 2-catalyzed tandem sp 3 C-H oxidation and annulation of aryl methyl ketones with amidoximes for the synthesis of 5-aroyl-1,2,4-oxadiazoles. Org Biomol Chem 2024; 22:7478-7484. [PMID: 39189408 DOI: 10.1039/d4ob01221f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/28/2024]
Abstract
A metal-free, iodine-catalyzed protocol has been developed for constructing biologically significant 5-aroyl 1,2,4-oxadiazole scaffolds using aryl methyl ketones and amidoximes. The strategy produces structurally diverse 5-aroyl 1,2,4-oxadiazoles in good to excellent yields, with a broad substrate scope that includes drug derived substrates. The reaction proceeds through iodine/DMSO-mediated oxidation of aryl methyl ketones, followed by imine formation and subsequent cyclization to yield the desired products. Additionally, this protocol has successfully produced the carbonyl analogs of ataluren and tioxazafen and has facilitated some intriguing late-stage transformations.
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Affiliation(s)
- Shiva Kumar Punna
- Organic Synthesis & Catalysis Lab, Department of Chemistry, National Institute of Technology Warangal, Hanumakonda-506004, Telangana, India.
| | - Mariyaraj Arockiaraj
- Organic Synthesis & Catalysis Lab, Department of Chemistry, National Institute of Technology Warangal, Hanumakonda-506004, Telangana, India.
| | - Venkatachalam Rajeshkumar
- Organic Synthesis & Catalysis Lab, Department of Chemistry, National Institute of Technology Warangal, Hanumakonda-506004, Telangana, India.
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Abd El-Lateef HM, Khalaf MM, Gouda M, Abdelhamid AA, Gad MA. Synthesis and Biological Evaluation of Benzamide Compounds as Insecticides Agents Against Spodoptera Frugiperda (Lepidoptera: Noctuidae). Chem Biodivers 2024; 21:e202400948. [PMID: 38899798 DOI: 10.1002/cbdv.202400948] [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: 04/19/2024] [Revised: 06/13/2024] [Accepted: 06/17/2024] [Indexed: 06/21/2024]
Abstract
Due to its severe damage, Spodoptera frugiperda is receiving attention as one of the biggest dangers to world food security. Although there are numerous insecticides that are widely and successfully used to control S. frugiperda, they do not have an immediate effect. In our work focusing for synthesized twelve novel benzamide derivatives and examined their insecticidal effectiveness against S. frugiperda larvae in their second & fourth larvae instars, with the aim of further improving the insecticidal activity based on combination principles. Several spectroscopic methods, including elemental analysis, NMR & infrared spectroscopy, were employed for confirming the structure of the newly designed products. It has been discovered that most compounds show good of promising efficacy. With an LC50 of 24.8 mg/L for larvae in the second instar & 56.2 mg/L for larvae in the fourth instar, compound 23 was the most active. Among all compounds 11, 22 and 20 exhibited excellent results. Furthermore, a number of biological and histopathological properties of the demonstration compounds of the produced goods under laboratory conditions were also examined. This work further demonstrates the anti-proliferation of S. frugiperda and offers fresh ideas for the manufacture of benzamide derivatives.
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Affiliation(s)
- Hany M Abd El-Lateef
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa, 31982, Saudi Arabia
- Department of Chemistry, Faculty of Science, Sohag University, Sohag, 82524, Egypt
| | - Mai M Khalaf
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa, 31982, Saudi Arabia
- Department of Chemistry, Faculty of Science, Sohag University, Sohag, 82524, Egypt
| | - M Gouda
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa, 31982, Saudi Arabia
| | - Antar A Abdelhamid
- Department of Chemistry, Faculty of Science, Sohag University, Sohag, 82524, Egypt
- Chemistry Department, Faculty of Science, Al-Baha University, Al-Baha, 1988, Saudi Arabia
| | - Mohamed A Gad
- Research Institute of Plant Protection, Agricultural Research Center, 12619, Giza, Egypt
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Asiri BMK. Novel Aryl Thioamides Derivatives as Insect Growth Regulators Analogues against Spodoptera littoralis (Lepidoptera: Noctuidae): Design, Synthesis, Insecticidal Activity and Biochemical Impacts. Chem Biodivers 2024; 21:e202400776. [PMID: 38733168 DOI: 10.1002/cbdv.202400776] [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: 03/29/2024] [Revised: 05/09/2024] [Accepted: 05/10/2024] [Indexed: 05/13/2024]
Abstract
A significant reason for developing innovative insecticidal active agents is the exponential rise in resistance to traditional chemical pesticides. Exploring new classes of insecticidal compounds with distinct mechanisms of action is one way to address this difficulty. So that, novel aryl thioamides derivatives 3-15 has been synthesized viaone-pot, three-component reaction of aroyl chloride, ammonium thiocyanate, and aromatic amines in dry acetone. The newly synthesized compounds' structures were validated by various spectroscopic methods, including elemental analysis, 1H-NMR, 13C NMR, and infrared spectroscopy. Under laboratory circumstances, the synthesized compounds showed good and broad-spectrum insecticidal activities toward S. littorali. When compared to other synthetic target compounds, 2,4-dichloro-N-[(3-fluorophenyl)carbamothioyl]benzamide 11, 2,4-dichloro-N-[(3-fluorophenyl)carbamothioyl]benzenecarbothioamide 13 showed good insecticidal activity, with 46.33 mg/L and LC50 values of 49.25 mg/L for 2nd instar larvae. Furthermore, the compound 3 was the least toxic in controlling the second and fourth instar larvae of S. littoralis on tomato leaves. Additionally, several histopathological and biochemical features of the some synthesized compounds under laboratory circumstances were also examined.
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Affiliation(s)
- Badriah M K Asiri
- Department of Biological Sciences, College of Science, University of Jeddah, Jeddah, Saudi Arabia
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4
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Dokla EME, Abutaleb NS, Milik SN, Kandil EAEA, Qassem OM, Elgammal Y, Nasr M, McPhillie MJ, Abouzid KAM, Seleem MN, Imming P, Adel M. SAR investigation and optimization of benzimidazole-based derivatives as antimicrobial agents against Gram-negative bacteria. Eur J Med Chem 2023; 247:115040. [PMID: 36584632 DOI: 10.1016/j.ejmech.2022.115040] [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: 09/09/2022] [Revised: 12/03/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022]
Abstract
Antibiotic-resistant bacteria represent a serious threat to modern medicine and human life. Only a minority of antibacterial agents are active against Gram-negative bacteria. Hence, the development of novel antimicrobial agents will always be a vital need. In an effort to discover new therapeutics against Gram-negative bacteria, we previously reported a structure-activity-relationship (SAR) study on 1,2-disubstituted benzimidazole derivatives. Compound III showed a potent activity against tolC-mutant Escherichia coli with an MIC value of 2 μg/mL, representing a promising lead for further optimization. Building upon this study, herein, 49 novel benzimidazole compounds were synthesized to investigate their antibacterial activity against Gram-negative bacteria. Our design focused on three main goals, to address the low permeability of our compounds and improve their cellular accumulation, to expand the SAR study to the unexplored ring C, and to optimize the lead compound (III) by modification of the methanesulfonamide moiety. Compounds (25a-d, 25f-h, 25k, 25l, 25p, 25r, 25s, and 26b) exhibited potent activity against tolC-mutant E. coli with MIC values ranging from 0.125 to 4 μg/mL, with compound 25d displaying the highest potency among the tested compounds with an MIC value of 0.125 μg/mL. As its predecessor, III, compound 25d exhibited an excellent safety profile without any significant cytotoxicity to mammalian cells. Time-kill kinetics assay indicated that 25d exhibited a bacteriostatic activity and significantly reduced E. coli JW55031 burden as compared to DMSO. Additionally, combination of 25d with colistin partially restored its antibacterial activity against Gram-negative bacterial strains (MIC values ranging from 4 to 16 μg/mL against E. coli BW25113, K. pneumoniae, A. baumannii, and P. aeruginosa). Furthermore, formulation of III and 25d as lipidic nanoparticles (nanocapsules) resulted in moderate enhancement of their antibacterial activity against Gram-negative bacterial strains (A. Baumannii, N. gonorrhoeae) and compound 25d demonstrated superior activity to the lead compound III. These findings establish compound 25d as a promising candidate for treatment of Gram-negative bacterial infections and emphasize the potential of nano-formulations in overcoming poor cellular accumulation in Gram-negative bacteria where further optimization and investigation are warranted to improve the potency and broaden the spectrum of our compounds.
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Affiliation(s)
- Eman M E Dokla
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Abbassia, Cairo, 11566, Egypt; Institute für Pharmazie, Martin-Luther-Universität Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, Halle (Saale), 06120, Germany.
| | - Nader S Abutaleb
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA; Department of Microbiology and Immunology, Zagazig University, Zagazig, 44519, Egypt
| | - Sandra N Milik
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Abbassia, Cairo, 11566, Egypt; School of Chemistry, University of Leeds, Leeds, LS2 9JT, United Kingdom
| | - Ezzat A E A Kandil
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Abbassia, Cairo, 11566, Egypt
| | - Omar M Qassem
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Abbassia, Cairo, 11566, Egypt; Purdue University Institute of Drug Discovery, Purdue University, West Lafayette, IN, 47907, USA
| | - Yehia Elgammal
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA
| | - Maha Nasr
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Abbassia, Cairo, 11566, Egypt
| | - Martin J McPhillie
- School of Chemistry, University of Leeds, Leeds, LS2 9JT, United Kingdom
| | - Khaled A M Abouzid
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Abbassia, Cairo, 11566, Egypt
| | - Mohamed N Seleem
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA; Center for Emerging, Zoonotic and Arthropod-borne Pathogens, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA
| | - Peter Imming
- Institute für Pharmazie, Martin-Luther-Universität Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, Halle (Saale), 06120, Germany
| | - Mai Adel
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Abbassia, Cairo, 11566, Egypt.
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Bairi S, AlagarsamyVeerachamy, Sunder Rachamalla S, Laxminarayana E. Synthesis and Biological Evaluation of Ary 1,2,4-Oxadiazole Incorporated (2-(Oxazol)-1H-imidazoles as Anticancer Agents. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Tu MT, Shao YY, Yang S, Sun BL, Wang YY, Tan CX, Wang XD. Structure-Based Bioisosterism Design, Synthesis, Biological Activity and Toxicity of 1,2,4-Oxadiazole Substituted Benzamides Analogues Containing Pyrazole Rings. Molecules 2022; 27:molecules27154692. [PMID: 35897869 PMCID: PMC9330712 DOI: 10.3390/molecules27154692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/15/2022] [Accepted: 07/19/2022] [Indexed: 11/30/2022] Open
Abstract
In order to discover pesticidal lead compounds with high activity and low toxicity, a series of novel benzamides substituted with pyrazole-linked 1,2,4-oxadiazole were designed via bioisosterism. The chemical structures of the target compounds were confirmed via 1H NMR, 13C NMR and HRMS analysis. The preliminary bioassay showed that most compounds exhibited good lethal activities against Mythimna separate, Helicoverpa armigera, Ostrinia nubilalis and Spodoptera frugiperda at 500 mg/L. Particularly in the case of Mythimna separate, compound 14q (70%) exhibited obvious insecticidal activity. In addition, compound 14h demonstrated good fungicidal activity against Pyricularia oryae with an inhibition rate of 77.8%, and compounds 14e, 14k, 14n and 14r also showed certain antifungal activities (55.6–66.7%). The zebrafish toxicity test showed that the LC50 of compound 14h was 14.01 mg/L, which indicated that it may be used as a potential leading compound for further structural optimization.
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Affiliation(s)
- Min-Ting Tu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (M.-T.T.); (Y.-Y.S.); (S.Y.); (B.-L.S.); (Y.-Y.W.)
| | - Ying-Ying Shao
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (M.-T.T.); (Y.-Y.S.); (S.Y.); (B.-L.S.); (Y.-Y.W.)
| | - Sen Yang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (M.-T.T.); (Y.-Y.S.); (S.Y.); (B.-L.S.); (Y.-Y.W.)
| | - Bin-Long Sun
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (M.-T.T.); (Y.-Y.S.); (S.Y.); (B.-L.S.); (Y.-Y.W.)
| | - Ying-Ying Wang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (M.-T.T.); (Y.-Y.S.); (S.Y.); (B.-L.S.); (Y.-Y.W.)
| | - Cheng-Xia Tan
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (M.-T.T.); (Y.-Y.S.); (S.Y.); (B.-L.S.); (Y.-Y.W.)
- Correspondence: (C.-X.T.); (X.-D.W.); Tel./Fax: +86-571-8832-0238 (C.-X.T.)
| | - Xue-Dong Wang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
- Correspondence: (C.-X.T.); (X.-D.W.); Tel./Fax: +86-571-8832-0238 (C.-X.T.)
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Yang S, Ren CL, Ma TY, Zou WQ, Dai L, Tian XY, Liu XH, Tan CX. 1,2,4-Oxadiazole-Based Bio-Isosteres of Benzamides: Synthesis, Biological Activity and Toxicity to Zebrafish Embryo. Int J Mol Sci 2021; 22:ijms22052367. [PMID: 33673430 PMCID: PMC7956408 DOI: 10.3390/ijms22052367] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 02/17/2021] [Accepted: 02/24/2021] [Indexed: 02/07/2023] Open
Abstract
To discover new compounds with broad spectrum and high activity, we designed a series of novel benzamides containing 1,2,4-oxadiazole moiety by bioisosterism, and 28 benzamides derivatives with antifungal activity were synthesized. These compounds were evaluated against four fungi: Botrytis cinereal, FusaHum graminearum, Marssonina mali, and Thanatephorus cucumeris. The results indicated that most of the compounds displayed good fungicidal activities, especially against Botrytis cinereal. For example, 10a (84.4%), 10d (83.6%), 10e (83.3%), 10f (83.1%), 10i (83.3%), and 10l (83.6%) were better than pyraclostrobin (81.4%) at 100 mg/L. In addition, the acute toxicity of 10f to zebrafish embryo was 20.58 mg/L, which was classified as a low-toxicity compound.
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Affiliation(s)
| | | | | | | | | | | | | | - Cheng-Xia Tan
- Correspondence: ; Tel.: +86-571-8832-0238; Fax: +86-571-8832-0238
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Yang S, Tian XY, Ma TY, Dai L, Ren CL, Mei JC, Liu XH, Tan CX. Synthesis and Biological Activity of Benzamides Substituted with Pyridine-Linked 1,2,4-Oxadiazole. Molecules 2020; 25:molecules25153500. [PMID: 32752024 PMCID: PMC7435590 DOI: 10.3390/molecules25153500] [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: 07/15/2020] [Revised: 07/28/2020] [Accepted: 07/31/2020] [Indexed: 02/08/2023] Open
Abstract
To find pesticidal lead compounds with high activity, a series of novel benzamides substituted with pyridine-linked 1,2,4-oxadiazole were designed by bioisosterism, and synthesized easily via esterification, cyanation, cyclization and aminolysis reactions. The structures of the target compounds were confirmed by 1H-NMR, 13C-NMR and HRMS. The preliminary bioassay showed that most compounds had good larvicidal activities against mosquito larvae at 10 mg/L, especially compound 7a, with a larvicidal activity as high as 100%, and even at 1 mg/L was still 40%; at 50 mg/L, all the target compounds showed good fungicidal activities against the eight tested fungi. Moreover, compound 7h exhibited better inhibitory activity (90.5%) than fluxapyroxad (63.6%) against Botrytis cinereal. Therefore, this type of compound can be further studied.
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Perupogu N, Kumar DR, Ramachandran D. Anticancer activity of newly synthesized 1,2,4-Oxadiazole linked 4-(Oxazolo[5,4-d]pyrimidine derivatives. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.cdc.2020.100363] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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10
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Kala P, Khasim Sharif S, Murali Krishna CH, Ramachandran D. Design, synthesis, and anticancer evaluation of 1,2,4-oxadiazole functionalized quinoline derivatives. Med Chem Res 2019. [DOI: 10.1007/s00044-019-02467-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Liu Q, Zhu R, Gao S, Ma SH, Tang HJ, Yang JJ, Diao YM, Wang HL, Zhu HJ. Structure-based bioisosterism design, synthesis, insecticidal activity and structure-activity relationship (SAR) of anthranilic diamide analogues containing 1,2,4-oxadiazole rings. PEST MANAGEMENT SCIENCE 2017; 73:917-924. [PMID: 27427282 DOI: 10.1002/ps.4363] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 06/21/2016] [Accepted: 07/12/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND Anthranilic diamide derivatives are among the most important classes of synthetic insecticides. Moreover, the 1,2,4-oxadiazole heterocycle, a bioisostere of amide, has been extensively used in pesticides. In order to discover novel molecules with high insecticidal activities, a series of anthranilic diamide analogues containing 1,2,4-oxadiazole rings were designed and synthesised. RESULTS A series of novel anthranilic diamide derivatives containing 1,2,4-oxadiazole were obtained, and confirmed by 1 H and 13 C nuclear magnetic resonance and high-resolution mass spectrometry. The structure of 3-bromo-N-(4-chloro-2-methyl-6-{3-[(methylsulphonyl)methyl]-1,2,4-oxadiazol-5-yl}phenyl)-1-(3-chloropyridin-2-yl)-1H-pyrazole-5-carboxamide was further characterised by X-ray diffraction analysis. In addition, bioassays showed that most of the newly synthesised compounds displayed 100% mortality against Plutella xylostella at 100 mg L-1 , and compound 3IIl showed 90% larvicidal activities at a concentration of 0.5 mg L-1 . The LC50 value of 3IIl was 0.20 mg L-1 , which indicated that it may be used as a potential leading compound for further structural optimisation. Furthermore, brief comparative molecular field analysis (CoMFA) models were established to study the structure-activity relationships (SARs) of the title compounds. CONCLUSION Compound 3IIl may be used as a potential leading compound for further structural optimisation, and SARs and CoMFA models could provide reliable clues for further structural optimisation. © 2016 Society of Chemical Industry.
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Affiliation(s)
- Qi Liu
- Department of Applied Chemistry, College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, China
| | - Rui Zhu
- Department of Applied Chemistry, College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, China
| | - Shang Gao
- Department of Applied Chemistry, College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, China
| | - Shi-Han Ma
- Department of Applied Chemistry, College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, China
| | - Hai-Jun Tang
- Department of Applied Chemistry, College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, China
| | - Jian-Jun Yang
- Department of Applied Chemistry, College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, China
| | - Ya-Mei Diao
- Jiangsu Pesticide Research Institute Co Ltd, Nanjing, China
| | - Hong-Lei Wang
- Jiangsu Pesticide Research Institute Co Ltd, Nanjing, China
| | - Hong-Jun Zhu
- Department of Applied Chemistry, College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, China
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Voronova AA, Baikov SV, Krasovskaya GG, Kolobov AV, Kofanov ER. Some regularities of the synthesis of ethyl 3-aryl-1,2,4-oxadiazole-5-carboxylates. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2014. [DOI: 10.1134/s1070428014110232] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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13
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14
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15
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Anusevicius K, Vaickelioniene R, Mickevicius V, Mikulskiene G. Synthesis of Bis Azole, Diazole, and Triazole Derivatives fromN-(4-Chloro/Iodophenyl)-N-carboxyethyl-β-alanine Dihydrazides. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.1070] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kazimieras Anusevicius
- Department of Organic Chemistry; Kaunas University of Technology; LT-50254 Kaunas; Lithuania
| | - Rita Vaickelioniene
- Department of Organic Chemistry; Kaunas University of Technology; LT-50254 Kaunas; Lithuania
| | - Vytautas Mickevicius
- Department of Organic Chemistry; Kaunas University of Technology; LT-50254 Kaunas; Lithuania
| | - Gema Mikulskiene
- Department of the Biochemistry of Xenobiotics; Vilnius University Institute of Biochemistry; LT-08662 Vilnius; Lithuania
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Bassyouni FA, Saleh TS, ElHefnawi MM, El-Moez SIA, El-Senousy WM, Abdel-Rehim ME. Synthesis, pharmacological activity evaluation and molecular modeling of new polynuclear heterocyclic compounds containing benzimidazole derivatives. Arch Pharm Res 2012; 35:2063-75. [DOI: 10.1007/s12272-012-1204-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2011] [Revised: 08/19/2011] [Accepted: 09/15/2011] [Indexed: 11/29/2022]
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17
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Reactions of nitroxides. Part X: Antifungal activity of selected sulfur and selenium derivatives of 2,2,6,6-tetramethylpiperidine. Bioorg Med Chem Lett 2011; 21:514-6. [DOI: 10.1016/j.bmcl.2010.10.092] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2010] [Revised: 10/18/2010] [Accepted: 10/19/2010] [Indexed: 11/18/2022]
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18
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dos Anjos JV, Neves Filho RA, do Nascimento SC, Srivastava RM, de Melo SJ, Sinou D. Synthesis and cytotoxic profile of glycosyl–triazole linked to 1,2,4-oxadiazole moiety at C-5 through a straight-chain carbon and oxygen atoms. Eur J Med Chem 2009; 44:3571-6. [DOI: 10.1016/j.ejmech.2009.03.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2008] [Revised: 02/27/2009] [Accepted: 03/06/2009] [Indexed: 12/01/2022]
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19
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Kemnitzer W, Kuemmerle J, Zhang HZ, Kasibhatla S, Tseng B, Drewe J, Cai SX. Discovery of 3-aryl-5-aryl-1,2,4-oxadiazoles as a new series of apoptosis inducers. 2. Identification of more aqueous soluble analogs as potential anticancer agents. Bioorg Med Chem Lett 2009; 19:4410-5. [DOI: 10.1016/j.bmcl.2009.05.052] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2009] [Revised: 05/13/2009] [Accepted: 05/14/2009] [Indexed: 11/26/2022]
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20
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Zhang HZ, Kasibhatla S, Kuemmerle J, Kemnitzer W, Ollis-Mason K, Qiu L, Crogan-Grundy C, Tseng B, Drewe J, Cai SX. Discovery and Structure−Activity Relationship of 3-Aryl-5-aryl-1,2,4-oxadiazoles as a New Series of Apoptosis Inducers and Potential Anticancer Agents. J Med Chem 2005; 48:5215-23. [PMID: 16078840 DOI: 10.1021/jm050292k] [Citation(s) in RCA: 178] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We have identified 5-(3-chlorothiophen-2-yl)-3-(4-trifluoromethylphenyl)-1,2,4-oxadiazole (1d) as a novel apoptosis inducer through our caspase- and cell-based high-throughput screening assay. Compound 1d has good activity against several breast and colorectal cancer cell lines but is inactive against several other cancer cell lines. In a flow cytometry assay, treatment of T47D cells with 1d resulted in arrest of cells in the G(1) phase, followed by induction of apoptosis. SAR studies of 1d showed that the 3-phenyl group can be replaced by a pyridyl group, and a substituted five-member ring in the 5-position is important for activity. 5-(3-Chlorothiophen-2-yl)-3-(5-chloropyridin-2-yl)-1,2,4-oxadiazole (4l) has been found to have in vivo activity in a MX-1 tumor model. Using a photoaffinity agent, the molecular target has been identified as TIP47, an IGF II receptor binding protein. Therefore, our cell-based chemical genetics approach for the discovery of apoptosis inducers can identify potential anticancer agents as well as their molecular targets.
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Affiliation(s)
- Han-Zhong Zhang
- Maxim Pharmaceuticals Inc., 6650 Nancy Ridge Drive, San Diego, CA 92121, USA
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Cottrell DM, Capers J, Salem MM, DeLuca-Fradley K, Croft SL, Werbovetz KA. Antikinetoplastid activity of 3-aryl-5-thiocyanatomethyl-1,2,4-oxadiazoles. Bioorg Med Chem 2004; 12:2815-24. [PMID: 15142541 DOI: 10.1016/j.bmc.2004.03.054] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2003] [Revised: 03/19/2004] [Accepted: 03/24/2004] [Indexed: 10/26/2022]
Abstract
A series of 5-thiocyanatomethyl- and 5-alkyl-3-aryl-1,2,4-oxadiazoles were synthesized and evaluated for their activity against kinetoplastid parasites. Formation of the oxadiazole ring was accomplished through the reaction of benzamidoximes with acyl chlorides, while the thiocyanate group was inserted by reacting the appropriate 5-halomethyl oxadiazole with ammonium thiocyanate. The thiocyanate-containing compounds possessed low micromolar activity against Leishmania donovani and Trypanosoma brucei, while the 5-alkyl oxadiazoles were less active against these parasites. 3-(4-Chlorophenyl)-5-(thiocyanatomethyl)-1,2,4-oxadiazole (compound 4b) displayed modest selectivity for L. donovani axenic amastigote-like parasites over J774 macrophages, PC3 prostate cancer cells, and Vero cells (6.4-fold, 3.8-fold, and 9.1-fold, respectively), while 3-(3,4-dichlorophenyl)-5-(thiocyanatomethyl)-1,2,4-oxadiazole (compound 4 h) showed 30-fold selectivity against Vero cells but was not selective against PC3 cells. In a murine model of visceral leishmaniasis, compound 4b decreased liver parasitemia caused by L. donovani by 48% when given in five daily i.v. doses at 5mg/kg and by 61% when administered orally for 5 days at 50 mg/kg. These results indicate that aromatic thiocyanates hold promise for the treatment of leishmanial infections if the selectivity of these compounds can be improved.
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Affiliation(s)
- Denise M Cottrell
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, 500 West 12th Avenue, Columbus, OH 43210, USA
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Parrish DA, Mathias LJ. Five- and six-membered ring opening of pyroglutamic diketopiperazine. J Org Chem 2002; 67:1820-6. [PMID: 11895398 DOI: 10.1021/jo0160928] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A variety of ring-opening reactions of pyroglutamic diketopiperazine at both the five-membered and six-membered rings is described. Mild, basic conditions facilitate nucleophilic attack by amines at the diketopiperazine carbonyls giving pyroglutamides in excellent yield. Reaction with nucleophiles under acidic conditions give bis-glutamate derivatives of 2,5-diketopiperazine (DKP). These reactions provide simple, two-step sequences to pyroglutamides and symmetrical diketopiperazines from commercial pyroglutamic acid with control of product dictated by reaction conditions, catalyst, and nucleophile.
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Affiliation(s)
- Dennis A Parrish
- School of Polymers and High Performance Materials, The University of Southern Mississippi, Hattiesburg, Mississippi 39406-0076, USA
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Chapter 17. Antiparasitic Agents. ANNUAL REPORTS IN MEDICINAL CHEMISTRY 1991. [DOI: 10.1016/s0065-7743(08)61204-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register]
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