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Li Y, Luo Z, Liu W, Chen W, Wang J, Zhu G, Guo B, Tang L, Fan L. Design and Synthesis of Novel Phthalide Derivatives containing 1,3,4-Oxadiazole/1,2,4-Triazole Units as Potential Antifungal Agents. Chem Biodivers 2024; 21:e202400043. [PMID: 38361278 DOI: 10.1002/cbdv.202400043] [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: 01/10/2024] [Revised: 01/30/2024] [Accepted: 01/30/2024] [Indexed: 02/17/2024]
Abstract
Four series of novel 1,3,4-oxadiazole/1,2,4-triazole hybrids of phthalide derivatives were designed and synthesized to search for novel potential antifungal agents. Preliminary antifungal activity assay results showed that compounds 4 a, 4 b, 4 m, 5 b, 5 f, 5 h, and 7 h exhibited moderate to excellent inhibitory activity against some phytopathogenic fungi. Among them, compound 5 b displayed the most outstanding antifungal effects against V. mali and S. sclerotiorum, with the EC50 mean of 3.96 μg/mL and 5.60 μg/mL, respectively, which was superior to those of commercial fungicides hymexazol and chlorothalonil. Furthermore, compound 5 b could completely suppress the spore germination of V. mali at a concentration of 10 μg/mL. Finally, molecular docking revealed that the potential target for the antifungal activity of compound 5 b was succinate dehydrogenase (SDH). This research provides novel candidate compounds for the prevention of phytopathogenic fungi.
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Affiliation(s)
- Yong Li
- College of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Provincial Key Laboratory of Pathogenesis and Drug Research on Common Chronic Diseases, Guizhou Medical University, Guiyang, 561113, People's Republic of China
| | - Zhongfu Luo
- College of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Provincial Key Laboratory of Pathogenesis and Drug Research on Common Chronic Diseases, Guizhou Medical University, Guiyang, 561113, People's Republic of China
| | - Wenjing Liu
- College of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Provincial Key Laboratory of Pathogenesis and Drug Research on Common Chronic Diseases, Guizhou Medical University, Guiyang, 561113, People's Republic of China
| | - Wenzhang Chen
- College of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Provincial Key Laboratory of Pathogenesis and Drug Research on Common Chronic Diseases, Guizhou Medical University, Guiyang, 561113, People's Republic of China
| | - Jianta Wang
- College of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Provincial Key Laboratory of Pathogenesis and Drug Research on Common Chronic Diseases, Guizhou Medical University, Guiyang, 561113, People's Republic of China
| | - Gaofeng Zhu
- College of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Provincial Key Laboratory of Pathogenesis and Drug Research on Common Chronic Diseases, Guizhou Medical University, Guiyang, 561113, People's Republic of China
| | - Bing Guo
- College of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Provincial Key Laboratory of Pathogenesis and Drug Research on Common Chronic Diseases, Guizhou Medical University, Guiyang, 561113, People's Republic of China
| | - Lei Tang
- College of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Provincial Key Laboratory of Pathogenesis and Drug Research on Common Chronic Diseases, Guizhou Medical University, Guiyang, 561113, People's Republic of China
| | - Lingling Fan
- College of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Provincial Key Laboratory of Pathogenesis and Drug Research on Common Chronic Diseases, Guizhou Medical University, Guiyang, 561113, People's Republic of China
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2
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Tian X, Sun Z, Zhong Y, Yang H, Cheng M, Liu Y. Synthesis and Antitumor Activity Evaluation of Novel Echinatin Derivatives with a 1,3,4-Oxadiazole Moiety. Int J Mol Sci 2024; 25:2254. [PMID: 38396931 PMCID: PMC10889159 DOI: 10.3390/ijms25042254] [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: 01/10/2024] [Revised: 02/07/2024] [Accepted: 02/09/2024] [Indexed: 02/25/2024] Open
Abstract
A series of novel echinatin derivatives with 1,3,4-oxadiazole moieties were designed and synthesized. Most of the newly synthesized compounds exhibited moderate antiproliferative activity against the four cancer cell lines. Notably, Compound T4 demonstrated the most potent activity, with IC50 values ranging from 1.71 µM to 8.60 µM against the four cancer cell lines. Cell colony formation and wound healing assays demonstrated that T4 significantly inhibited cell proliferation and inhibited migration. We discovered that T4 exhibited moderate binding affinity with the c-KIT protein through reverse docking. The results were effectively validated through subsequent molecular docking and c-KIT enzyme activity assays. In addition, Western blot analysis revealed that T4 inhibits the phosphorylation of downstream proteins of c-KIT. The results provide valuable inspiration for exploring novel insights into the design of echinatin-related hybrids as well as their potential application as c-KIT inhibitors to enhance the efficacy of candidates.
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Affiliation(s)
| | | | | | | | | | - Yang Liu
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China; (X.T.); (Z.S.); (Y.Z.); (H.Y.); (M.C.)
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3
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Le HT, Do KM, Nguyen QP, Doan CNM, Nguyen NA, Phan TT, Tran XTC, Ha QTK, Tran DQ, Morita H, Bui HTB. Syntheses and Cytotoxicities of Quinazolinone-Based Conjugates. Chem Pharm Bull (Tokyo) 2024; 72:61-67. [PMID: 38220213 DOI: 10.1248/cpb.c23-00674] [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] [Indexed: 01/16/2024]
Abstract
Two novel series of quinazolinone-based hybrids, including quinazolinone-1,3,4-oxadiazoles (10a-l) and quinazolinone-1,3,4-oxadiazole-benzimidazoles (8a-e), were designed and synthesized and their cytotoxic activities against three human cancer cell lines, lung cancer (A549), cervical cancer (HeLa), and breast cancer (MCF-7), were evaluated. The cytotoxic assays revealed that 10i with a lipophilic 4-fluoro-phenyl moiety at the C-2 position of the quinazolinone ring displayed good cytotoxicities against the A549 and MCF-7 cell lines, while 8b-d with the thioether-linked benzimidazole moiety incorporated on the right side of the oxadiazole ring induced comparable stronger activities toward the MCF-7 cell line, relative to the simple two-heterocycle-containing hybrid 10i. These novel quinazolinone-based hybrids could be considered as lead compounds that merit further optimization and development as anti-cancer agents.
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Affiliation(s)
- Hieu Trong Le
- Department of Chemistry, College of Natural Sciences, Can Tho University
| | - Kiep Minh Do
- Institute of Natural Medicine, University of Toyama
| | - Quy Phu Nguyen
- Department of Chemistry, College of Natural Sciences, Can Tho University
- Faculty of Pharmacy and Nursing, Tay Do University
| | | | - Nhi Ai Nguyen
- Department of Chemistry, College of Natural Sciences, Can Tho University
| | - Tai Thi Phan
- Department of Chemistry, College of Natural Sciences, Can Tho University
| | - Xuyen Thi Cam Tran
- Department of Chemistry, College of Natural Sciences, Can Tho University
| | - Quy Thi Kim Ha
- Department of Chemistry, College of Natural Sciences, Can Tho University
| | - De Quang Tran
- Department of Chemistry, College of Natural Sciences, Can Tho University
| | | | - Hue Thi Buu Bui
- Department of Chemistry, College of Natural Sciences, Can Tho University
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4
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Afzal O, Ahsan MJ. An Efficient Synthesis of 1-(1,3-Dioxoisoindolin-2-yl)-3-aryl Urea Analogs as Anticancer and Antioxidant Agents: An Insight into Experimental and In Silico Studies. Molecules 2023; 29:67. [PMID: 38202650 PMCID: PMC10779787 DOI: 10.3390/molecules29010067] [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: 10/20/2023] [Revised: 12/17/2023] [Accepted: 12/19/2023] [Indexed: 01/12/2024] Open
Abstract
The present investigation reports the efficient multistep synthesis of 1-(1,3-dioxoisoindolin-2-yl)-3-aryl urea analogs (7a-f) in good yields. All the 1-(1,3-dioxoisoindolin-2-yl)-3-aryl urea analogs (7a-f) were characterized by spectroscopic techniques. Five among the six compounds were tested against 56 cancer cell lines at 10 µM as per the standard protocol. 1-(4-Bromophenyl)-3-(1,3-dioxoisoindolin-2-yl)urea (7c) exhibited moderate but significant anticancer activity against EKVX, CAKI-1, UACC-62, MCF7, LOX IMVI, and ACHN with percentage growth inhibitions (PGIs) of 75.46, 78.52, 80.81, 83.48, 84.52, and 89.61, respectively. Compound 7c was found to exhibit better anticancer activity than thalidomide against non-small cell lung, CNS, melanoma, renal, prostate, and breast cancer cell lines. It was also found to exhibit superior anticancer activity against melanoma cancer compared to imatinib. Among the tested compounds, the 4-bromosubstitution (7c) on the phenyl ring demonstrated good anticancer activity. Docking scores ranging from -6.363 to -7.565 kcal/mol were observed in the docking studies against the molecular target EGFR. The ligand 7c displayed an efficient binding against the EGFR with a docking score of -7.558 kcal/mol and displayed an H-bond interaction with Lys745 and the carbonyl functional group. Compound 7c demonstrated a moderate inhibition of EGFR with an IC50 of 42.91 ± 0.80 nM, in comparison to erlotinib (IC50 = 26.85 ± 0.72 nM), the standard drug. The antioxidant potential was also calculated for the compounds (7a-f), which exhibited good to low activity. 1-(2-Methoxyphenyl)-3-(1,3-dioxoisoindolin-2-yl)urea (7f) and 1-(4-Methoxyphenyl)-3-(1,3-dioxoisoindolin-2-yl)urea (7d) demonstrated significant antioxidant activity with IC50 values of 15.99 ± 0.10 and 16.05 ± 0.15 µM, respectively. The 2- and 4-methoxysubstitutions on the N-phenyl ring showed good antioxidant activity among the series of compounds (7a-f). An in silico ADMET prediction studies showed the compounds' adherence to Lipinski's rule of five: they were free from toxicities, including mutagenicity, cytotoxicity, and immunotoxicity, but not for hepatotoxicity. The toxicity prediction demonstrated LD50 values between 1000 and 5000 mg/Kg, putting the compounds either in class IV or class V toxicity classes. Our findings might create opportunities for more advancements in cancer therapeutics.
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Affiliation(s)
- Obaid Afzal
- Department of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Mohamed Jawed Ahsan
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Jahangirabad Institute of Technology (JIT), Jahangirabad Fort, Jahangirabad 225203, Uttar Pradesh, India;
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Zou Q, Zhang W, Wang H, Yin G, He Y, Li F. Anion-Driven C-F Bond Activation of Trifluoromethyl N-Aryl Hydrazones: Application to the Synthesis of 1,3,4-Oxadiazoles. J Org Chem 2023; 88:15507-15515. [PMID: 37862576 DOI: 10.1021/acs.joc.3c01822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2023]
Abstract
The CF3 group attached to N-aryl hydrazone could be activated upon treatment with a suitable base, thus serving as an excellent C1 unit for the assembly of a series of 1,3,4-oxadiazoles by reaction with hydrazides. The transformation is proposed to proceed via the intermediate formation of a gem-difluorinated azoalkene. Furthermore, this reaction features simple conditions and a broad substrate scope with respect to both trifluoromethyl N-aryl hydrazones and hydrazides.
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Affiliation(s)
- Qijie Zou
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P. R. China
- Haihe Laboratory of Modern Chinese Medicine, Tianjin 301617, P. R. China
| | - Wei Zhang
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P. R. China
- Haihe Laboratory of Modern Chinese Medicine, Tianjin 301617, P. R. China
| | - Haoyue Wang
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P. R. China
| | - Guangwei Yin
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P. R. China
| | - Yongzhi He
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P. R. China
| | - Fangyi Li
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P. R. China
- Haihe Laboratory of Modern Chinese Medicine, Tianjin 301617, P. R. China
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6
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Afzal O, Ali A, Ali A, Altamimi ASA, Alossaimi MA, Bakht MA, Salahuddin, Alamri MA, Ahsan MF, Ahsan MJ. Synthesis and Anticancer Evaluation of 4-Chloro-2-((5-aryl-1,3,4-oxadiazol-2-yl)amino)phenol Analogues: An Insight into Experimental and Theoretical Studies. Molecules 2023; 28:6086. [PMID: 37630338 PMCID: PMC10459877 DOI: 10.3390/molecules28166086] [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: 06/30/2023] [Revised: 08/06/2023] [Accepted: 08/07/2023] [Indexed: 08/27/2023] Open
Abstract
We report herein the synthesis, docking studies and biological evaluation of a series of new 4-chloro-2-((5-aryl-1,3,4-oxadiazol-2-yl)amino)phenol analogues (6a-h). The new compounds were designed based on the oxadiazole-linked aryl core of tubulin inhibitors of IMC-038525 and IMC-094332, prepared in five steps and further characterized via spectral analyses. The anticancer activity of the compounds was assessed against several cancer cell lines belonging to nine different panels as per National Cancer Institute (NCI US) protocol. 4-Chloro-2-((5-(3,4,5-trimethoxyphenyl)-1,3,4-oxadiazol-2-yl)amino)phenol (6h) demonstrated significant anticancer activity against SNB-19 (PGI = 65.12), NCI-H460 (PGI = 55.61), and SNB-75 (PGI = 54.68) at 10 µM. The compounds were subjected to molecular docking studies against the active site of the tubulin-combretastatin A4 complex (PDB ID: 5LYJ); they displayed efficient binding and ligand 4h (with docking score = -8.030 kcal/mol) lay within the hydrophobic cavity surrounded by important residues Leu252, Ala250, Leu248, Leu242, Cys241, Val238, Ile318, Ala317, and Ala316. Furthermore, the antibacterial activity of some of the compounds was found to be promising. 4-Chloro-2-((5-(4-nitrophenyl)-1,3,4-oxadiazol-2-yl)amino)phenol (6c) displayed the most promising antibacterial activity against both Gram-negative as well as Gram-positive bacteria with MICs of 8 µg/mL and a zone of inhibition ranging from 17.0 ± 0.40 to 17.0 ± 0.15 mm at 200 µg/mL; however, the standard drug ciprofloxacin exhibited antibacterial activity with MIC values of 4 µg/mL.
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Affiliation(s)
- Obaid Afzal
- Department of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Amena Ali
- Department of Pharmaceutical Chemistry, College of Pharmacy, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Abuzer Ali
- Department of Pharmacognosy, College of Pharmacy, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | | | - Manal A. Alossaimi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Md Afroz Bakht
- Department of Chemistry, College of Science and Humanity Studies, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Salahuddin
- Department of Pharmaceutical Chemistry, Noida Institute of Engineering and Technology, (Pharmacy Institute), Knowledge Park-2, Greater Noida 201 306, India
| | - Mubarak A. Alamri
- Department of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Md. Faiyaz Ahsan
- Department of Chemistry, Bihar National College, Patna 800 004, India
| | - Mohamed Jawed Ahsan
- Department of Pharmaceutical Chemistry, Maharishi Arvind College of Pharmacy, Jaipur 302 039, India
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7
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Agarwal M, Afzal O, Salahuddin, Altamimi AS, Alamri MA, Alossaimi MA, Sharma V, Ahsan MJ. Design, Synthesis, ADME, and Anticancer Studies of Newer N-Aryl-5-(3,4,5-Trifluorophenyl)-1,3,4-Oxadiazol-2-Amines: An Insight into Experimental and Theoretical Investigations. ACS OMEGA 2023; 8:26837-26849. [PMID: 37593245 PMCID: PMC10431697 DOI: 10.1021/acsomega.3c01462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Accepted: 07/05/2023] [Indexed: 08/19/2023]
Abstract
In continuance of our investigation into the anticancer activity of oxadiazoles, we report here the preparation of 10 new 1,3,4-oxadiazole analogues using the scaffold hopping technique. We have prepared the oxadiazoles having a common pharmacophoric structure (oxadiazole linked aryl nucleus) as seen in the reported anticancer agents IMC-038525 (tubulin inhibitor), IMC-094332 (tubulin inhibitor), and FATB (isosteric replacement of the S of thiadiazole with the O of oxadiazole). All of the oxadiazole analogues were predicted for their absorption, distribution, metabolism, and excretion (ADME) profiles and toxicity studies. All of the compounds were found to follow Lipinski's rule of 5 with a safe toxicity profile (Class IV compound) against immunotoxicity, mutagenicity, and toxicity. All of the compounds were synthesized and characterized using spectral data, followed by their anticancer activity tested in a single-dose assay at 10 μM as reported by the National Cancer Institute (NCI US) Protocol against nearly 59 cancer cell lines obtained from nine panels, including non-small-cell lung, ovarian, breast, central nervous system (CNS), colon, leukemia, prostate, and cancer melanoma. N-(2,4-Dimethylphenyl)-5-(3,4,5-trifluorophenyl)-1,3,4-oxadiazol-2-amine (6h) displayed significant anticancer activity against SNB-19, OVCAR-8, and NCI-H40 with percent growth inhibitions (PGIs) of 86.61, 85.26, and 75.99 and moderate anticancer activity against HOP-92, SNB-75, ACHN, NCI/ADR-RES, 786-O, A549/ATCC, HCT-116, MDA-MB-231, and SF-295 with PGIs of 67.55, 65.46, 59.09, 59.02, 57.88, 56.88, 56.53, 56.4, and 51.88, respectively. The compound 6h also registered better anticancer activity than Imatinib against CNS, ovarian, renal, breast, prostate, and melanoma cancers with average PGIs of 56.18, 40.41, 36.36, 27.61, 22.61, and 10.33, respectively. Molecular docking against tubulin, one of the appealing cancer targets, demonstrated an efficient binding within the binding site of combretastatin A4. The ligand 6h (docking score = -8.144 kcal/mol) interacted π-cationically with the residue Lys352 (with the oxadiazole ring). Furthermore, molecular dynamic (MD) simulation studies in complex with the tubulin-combretastatin A4 protein and ligand 6h were performed to examine the dynamic stability and conformational behavior.
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Affiliation(s)
- Mohit Agarwal
- Department
of Pharmaceutical Chemistry, Arya College
of Pharmacy, Jaipur, Rajasthan 302 001, India
- Department
of Pharmaceutical Chemistry, Nims Institute of Pharmacy, Nims University, Jaipur, Rajasthan 303
121, India
| | - Obaid Afzal
- Department
of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Salahuddin
- Department
of Pharmaceutical Chemistry, Noida Institute
of Engineering and Technology (Pharmacy Institute), Knowledge Park-2, Greater Noida 201 306, India
| | | | - Mubarak A. Alamri
- Department
of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Manal A. Alossaimi
- Department
of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Vandana Sharma
- Department
of Pharmaceutical Chemistry, Arya College
of Pharmacy, Jaipur, Rajasthan 302 001, India
| | - Mohamed Jawed Ahsan
- Department
of Pharmaceutical Chemistry, Maharishi Arvind
College of Pharmacy, Jaipur, Rajasthan 302 039, India
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8
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Datar M, Dhanwad R, Javeed M, Gunavanthrao Yernale N, Suliphuldevara Mathada B. Synthesis, Structural Investigations, DFT Calculations, and Molecular Docking Studies of Novel 2-(Substituted-Aryloxymethyl)-5-(Pyridin-4-yl)-1, 3, 4-Oxadiazoles: Highly Potential InhA and Cytochrome c Peroxidase Inhibitors. Polycycl Aromat Compd 2023. [DOI: 10.1080/10406638.2023.2174997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Affiliation(s)
- Madhura Datar
- Department of Pharmaceutical Chemistry, Government College of Pharmacy, Bengaluru, Karnataka, India
| | - Ramagopal Dhanwad
- Department of Pharmaceutical Chemistry, Government College of Pharmacy, Bengaluru, Karnataka, India
| | - Mohammad Javeed
- P.G. Department and Research Studies in Chemistry, Nrupatunga University, Bengaluru, Karnataka, India
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9
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Abdelfattah AM, Mekky AEM, Sanad SMH. Synthesis, antibacterial activity and in silico study of new bis(1,3,4-oxadiazoles). SYNTHETIC COMMUN 2022. [DOI: 10.1080/00397911.2022.2095211] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
| | - Ahmed E. M. Mekky
- Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt
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10
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Sharma D, Om H, Sharma AK. Potential Synthetic Routes and Metal-Ion Sensing Applications of 1,3,4-Oxadiazoles: An Integrative Review. Crit Rev Anal Chem 2022; 54:416-436. [PMID: 35617470 DOI: 10.1080/10408347.2022.2080494] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Oxadiazoles, especially 1,3,4-oxadiazole scaffolds, stand among the foremost heterocyclic fragments with a broad spectrum of applications in diverse fields, including pharmacology, polymers, material science, and organic electronics, among others. In this comprehensive review, we summarize the pivotal synthetic strategies for 1,3,4-oxadiazole derivatives including dehydrogenative cyclization of 1,2-diacylhydrazines, oxidative cyclization of acylhydrazones, condensation cyclization, C-H activation of oxadiazole ring, decarboxylative cyclization and oxidative annulation along with plausible mechanisms. The set of 1,3,4-oxadiazoles selected from the literature and discussed herein epitomize the ease of synthesis as well as the possibility of linking π-conjugated groups; thereby encouraging the use of these molecules as important starting building blocks for a wide variety of fluorescent frameworks, particularly in the development of potential chemosensors. High photoluminescent quantum yield, excellent thermal and chemical stability, and the presence of potential coordination (N and O donor atoms) sites make these molecules a prominent choice for metal-ions sensors. An overview of selective metal-ion sensing, the detection limit along with the sensing mechanisms (photo-induced electron transfer, excited-state intramolecular proton transfer, and complex formation) is also included.
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Affiliation(s)
- Deepak Sharma
- Department of Chemistry, Deenbandhu Chhotu Ram University of Science and Technology, Sonipat, India
| | - Hari Om
- Department of Chemistry, Deenbandhu Chhotu Ram University of Science and Technology, Sonipat, India
| | - Ashok Kumar Sharma
- Department of Chemistry, Deenbandhu Chhotu Ram University of Science and Technology, Sonipat, India
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11
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Zhao L, Xu J, Ma J, Yin G, Li F, Suo T, Wang C. Formal [4+1] cyclization of (thio/imido)hydrazides and ethyl 3,3,3-trifluoropropanoate: unified synthesis of 1,3,4-oxadiazoles, 1,3,4-thiadiazoles and 1,2,4-triazoles. NEW J CHEM 2022. [DOI: 10.1039/d2nj04147b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
We have developed a unified approach to 1,3,4-oxadiazoles, 1,3,4-thiadiazoles and 1,2,4-triazoles with ethyl acetate decoration by treating hydrazides, thiohydrazides and imidohydrazide with ethyl 3,3,3-trifluoropropanoate in the presence of a suitable base.
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Affiliation(s)
- Lan Zhao
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P. R. China
- Haihe Laboratory of Modern Chinese Medicine, Tianjin 301617, P. R. China
| | - Jun Xu
- School of Pharmaceutical Science & Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Jun Ma
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P. R. China
- Haihe Laboratory of Modern Chinese Medicine, Tianjin 301617, P. R. China
| | - Guangwei Yin
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P. R. China
- Haihe Laboratory of Modern Chinese Medicine, Tianjin 301617, P. R. China
| | - Fangyi Li
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P. R. China
- Haihe Laboratory of Modern Chinese Medicine, Tianjin 301617, P. R. China
| | - Tongchuan Suo
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P. R. China
- Haihe Laboratory of Modern Chinese Medicine, Tianjin 301617, P. R. China
| | - Chunhua Wang
- School of Medicine, Foshan University, Foshan 528225, P. R. China
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