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Mehra A, Sangwan R, Mehra A, Sharma S, Wadhwa P, Mittal A. Therapeutic charisma of imidazo [2,1-b] [1,3,4]-thiadiazole analogues: a patent review. Pharm Pat Anal 2023; 12:177-191. [PMID: 37671908 DOI: 10.4155/ppa-2023-0006] [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: 09/07/2023]
Abstract
Imidazothiadiazole was discovered around the 1950s era, containing an imidazole ring fused to a thiadiazole ring. Imidazothiadiazole exhibit versatile pharmacological properties including anticonvulsant, cardiotonic, anti-inflammatory, diuretic, antifungal, antibacterial and anticancer. Despite of the being discovered in 1950s, the imidazothiadiazole derivatives are unable to being processed to clinical trials because of lack of bioavailability, efficacy and cytotoxicity. The recent patent literature focused on structural modification of imidazothiadiazole core to overcome these problems. This review limelight a disease-centric perspective on patented imidazothiadiazole from 2015-2023 and to understand their mechanism of action in related diseases. The relevant granted patent applications were located using patent databases, Google Patents, USPTO, EPO, WIPO, Espacenet and Lens.
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Affiliation(s)
- Anuradha Mehra
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Sciences, Lovely Professional University, Jalandhar-Delhi G.T. Road, NH-1, Phagwara, Punjab, 144411, India
| | - Rekha Sangwan
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Sciences, Lovely Professional University, Jalandhar-Delhi G.T. Road, NH-1, Phagwara, Punjab, 144411, India
| | - Aryan Mehra
- Department of Mechanical Engineering, Lovely Professional University, Jalandhar-Delhi G.T. Road, NH-1, Phagwara, Punjab, 144411, India
| | - Shivani Sharma
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Sciences, Lovely Professional University, Jalandhar-Delhi G.T. Road, NH-1, Phagwara, Punjab, 144411, India
| | - Pankaj Wadhwa
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Sciences, Lovely Professional University, Jalandhar-Delhi G.T. Road, NH-1, Phagwara, Punjab, 144411, India
| | - Amit Mittal
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Sciences, Lovely Professional University, Jalandhar-Delhi G.T. Road, NH-1, Phagwara, Punjab, 144411, India
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Ozcan I, Akkoc S, Alici H, Capanlar S, Sahin O, Tahtaci H. Novel Thioether-Bridged 2,6-Disubstituted and 2,5,6-Trisubstituted Imidazothiadiazole Analogues: Synthesis, Antiproliferative Activity, ADME, and Molecular Docking Studies. Chem Biodivers 2023; 20:e202200884. [PMID: 36445849 DOI: 10.1002/cbdv.202200884] [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: 09/19/2022] [Revised: 11/23/2022] [Accepted: 11/29/2022] [Indexed: 12/03/2022]
Abstract
In this study, starting from 2-amino-1,3,4-thiadiazole derivatives (3-5), a new series of 2,6-disubstituted (compounds 7-15) and 2,5,6-trisubstituted (compounds 16-33) imidazo[2,1-b][1,3,4]-thiadiazole derivatives were synthesized using cyclization and Mannich reaction mechanisms, respectively. All synthesized compounds were characterized by 1 H-NMR, 13 C-NMR, FT-IR, elemental analysis, and mass spectroscopy techniques. Also, X-ray diffraction analysis were used for compounds 4, 7, 11, 17, and 19. The cytotoxic effects of the new compounds on the viability of colon cancer cells (DLD-1), lung cancer cells (A549), and liver cancer cells (HepG2) were investigated using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) method in vitro. Compound 15 was found to be the most potent anticancer drug candidate in this series with an IC50 value of 3.63 μM against HepG2 for 48 h. Moreover, the absorption, distribution, metabolism, and excretion (ADME) parameters of the synthesized compounds were calculated and thus, their potential to be safe drugs was evaluated. Finally, to support the biological activity experiments, molecular docking studies of these compounds were carried out on three different target cancer protein structures (PDB IDs: 5ETY, 1M17, and 3GCW), and the amino acids that play key roles in the binding of the compounds to these proteins were determined.
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Affiliation(s)
- Ibrahim Ozcan
- Karabuk University, Faculty of Science, Department of Chemistry, 78050, Karabuk, Türkiye
| | - Senem Akkoc
- Süleyman Demirel University, Faculty of Pharmacy, Department of Basic Pharmaceutical Sciences, 32260, Isparta, Türkiye.,Bahcesehir University, Faculty of Engineering and Natural Sciences, 34353, Istanbul, Türkiye
| | - Hakan Alici
- Zonguldak Bülent Ecevit University, Faculty of Science, Department of Physics, 67100, Zonguldak, Türkiye
| | - Seval Capanlar
- Zonguldak Bülent Ecevit University, Faculty of Science, Department of Chemistry, 67100, Zonguldak, Türkiye
| | - Onur Sahin
- Sinop University, Faculty of Health Sciences, Department of Occupational Health & Safety, 57000, Sinop, Türkiye
| | - Hakan Tahtaci
- Karabuk University, Faculty of Science, Department of Chemistry, 78050, Karabuk, Türkiye
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Synthesis, molecular modeling and antioxidant screening of new thioether-bridged thiadiazole and thiadiazolopyrimidine analogues. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Alia Abdulaziz Alfi, Alharbi A, Qurban J, Abualnaja MM, Abumelha HM, Saad FA, El-Metwaly NM. Molecular modeling and docking studies of new antioxidant pyrazole-thiazole hybrids. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Zheng H, Kuang J, Zhang H, Niu X, Wu Z. Design, synthesis, and bioassay of novel 1‐(3‐chloropyridin‐2‐yl)‐5‐amino‐4‐pyrazole derivatives containing a 1,3,4‐thiadiazole thioether or sulfone moiety. J Heterocycl Chem 2022. [DOI: 10.1002/jhet.4436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Huanlin Zheng
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education Center for R&D of Fine Chemicals of Guizhou University Guiyang China
| | - Jiqing Kuang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education Center for R&D of Fine Chemicals of Guizhou University Guiyang China
| | - Hong Zhang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education Center for R&D of Fine Chemicals of Guizhou University Guiyang China
| | - Xue Niu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education Center for R&D of Fine Chemicals of Guizhou University Guiyang China
| | - Zhibing Wu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education Center for R&D of Fine Chemicals of Guizhou University Guiyang China
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Abu-Melha S. Synthesis, Molecular Modeling, and Anticancer Screening of Some New Imidazothiadiazole Analogs. Polycycl Aromat Compd 2021. [DOI: 10.1080/10406638.2021.1957951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Sraa Abu-Melha
- Department of Chemistry, Faculty of Science, King Khalid University, Abha, Saudi Arabia
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