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Laha RM, Aich S, Sarkar AK, Dutta T, Ghosh NN, Khamarui S, Maiti DK. New routes towards azomethine ylide generation from prolines to synthesize diverse N-heterocycles: a DFT supported endo-selective mechanism. Org Biomol Chem 2024. [PMID: 39177485 DOI: 10.1039/d4ob01004c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2024]
Abstract
Azomethine ylides are generated using either organocatalysts or metal catalysts via a ballet of decarboxylative C-N coupling choreographed by prolines. These strategies enable diastereoselective [3 + 2] cycloaddition, C-C coupling, and ring annulation, providing sustainable routes. The synthesized pyrrolizines and other heterocycles have potential applications in the development of crucial biomolecules and pharmaceuticals. The endoselectivity of the azomethine ylide is realized and supported through DFT calculations.
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Affiliation(s)
- Radha M Laha
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata-700009, India.
- Department of Science & Humanities, Murshidabad Institute of Technology, West Bengal-742102, India
| | - Shobhon Aich
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata-700009, India.
| | - Ankan Kumar Sarkar
- School of Material Science, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032, India
| | - Tanmoy Dutta
- Department of Chemistry, JIS College of Engineering, Kalyani, West Bengal 741235, India
| | - Narendra Nath Ghosh
- Department of Chemistry, Pakuahat A.N.M. High School, Malda, West Bengal 732138, India
| | - Saikat Khamarui
- Department of Chemistry, Government General Degree College at Kalna-1, Purba Bardhhaman, 713405, India.
| | - Dilip K Maiti
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata-700009, India.
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Shafi S, Khurana N, Gupta J. PPAR gamma agonistic activity of dillapiole: protective effects against diabetic nephropathy. Nat Prod Res 2024:1-6. [PMID: 38563125 DOI: 10.1080/14786419.2024.2334323] [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: 02/01/2023] [Accepted: 03/15/2024] [Indexed: 04/04/2024]
Abstract
Using structural similarity approach we identified dillapiole, a phenylpropanoid, the main component of Piper aduncum L. and Anethum graveolens L. essential oils as potential PPARγ agonist. Molecular docking revealed that dillapiole binds to the active site of PPARγ, similar to pioglitazone binding. In silico ADME studies showed that dillapiole has high water solubility and GI absorption. Dillapiole was also observed to be partial agonist of PPARγ receptors with EC50 of 43.95 µM. In BHK-21 cells cultured under hyperglycaemic conditions, dillapiole administration reduced oxidative stress and prevented decrease in histone H3 acetylation (k9/14) levels. In HFD + STZ induced diabetic mice, dillapiole treatment for 7 days was able to improve renal functions and decrease plasma glucose level to 138.39 ± 12.36 mg/dl along with decreasing total cholesterol (29%), triglycerides (48.8%), LDL (24.7%), and VLDL (65%) levels in serum. These results show that dillapiole is a potential PPARγ-agonist and thus needs to explore further.
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Affiliation(s)
- Sana Shafi
- Department of Biotechnology, School of Bioscience, Lovely Professional University, Phagwara, Punjab, India
| | - Navneet Khurana
- Department of Pharmacology, School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, India
| | - Jeena Gupta
- Department of Biochemistry, School of Bioscience, Lovely Professional University, Phagwara, Punjab, India
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Lan W, Yu X, Li M, Lei R, Qin Z, Fu B. A concise approach to 2-pyrrolin-5-one scaffold construction from α-halohydroxamates and β-keto compounds. Org Biomol Chem 2023; 21:7535-7540. [PMID: 37674436 DOI: 10.1039/d3ob01140b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/08/2023]
Abstract
A concise approach to the construction of the 2-pyrrolin-5-one scaffold was developed via a one-pot reaction with formal [3 + 2] annulation/elimination between β-keto nitrile/β-keto ester and unsubstituted α-halohydroxamates. This reaction features mild conditions, easy handling, broad substrate scope and good yields. Remarkably, the products could be readily converted into potentially bioactive alkylidenepyrrolinones, pyrroles, pyran-fused pyrrole heterocycles and other useful compounds, exhibiting versatile synthetic potential.
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Affiliation(s)
- Wenjie Lan
- Department of Chemistry, China Agricultural University, Beijing 100193, China.
| | - Xuan Yu
- Department of Chemistry, China Agricultural University, Beijing 100193, China.
| | - Mengzhu Li
- Department of Chemistry, China Agricultural University, Beijing 100193, China.
| | - Rongchao Lei
- Department of Chemistry, China Agricultural University, Beijing 100193, China.
| | - Zhaohai Qin
- Department of Chemistry, China Agricultural University, Beijing 100193, China.
| | - Bin Fu
- Department of Chemistry, China Agricultural University, Beijing 100193, China.
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High-throughput screening of compounds library to identify novel inhibitors against latent Mycobacterium tuberculosis using streptomycin-dependent Mycobacterium tuberculosis 18b strain as a model. Tuberculosis (Edinb) 2020; 124:101958. [PMID: 32791471 DOI: 10.1016/j.tube.2020.101958] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 05/12/2020] [Accepted: 05/13/2020] [Indexed: 11/22/2022]
Abstract
One of the significant challenges to treat tuberculosis is the phenotypic resistance adapted by the latent or dormant Mycobacterium tuberculosis (M. tuberculosis) cells against most of the available drugs. Different in-vitro assay such as oxygen depletion model and nutrient starvation models have contributed to unravelling the pathogen phenotypic resistance but are too cumbersome for application to high-throughput screening (HTS) assays. In this context, non-replicating streptomycin-starved 18b (SS18b) mutant strain of M. tuberculosis provided a simple and reproducible model. This model mimics latent tuberculosis and is best suited for screening medicinally appropriate libraries. Using SS18b strain in a resazurin reduction microplate assay (REMA), high-throughput screening of ChemDiv library constituting of 30,000 compounds resulted in the identification of 470 active compounds. Clustering and scaffolding based medicinal chemistry analysis characterized these hits into 15 scaffolds. Seven most potent compounds exhibiting an MIC ≤ 1 μg/ml against SS18b were non-toxic in HepG2 cell line (selective Index ≥ 160). Our screening revealed seven novel compounds exhibiting activity against the non-replicating form of M tuberculosis. 8002-7516 was the most promising compound showing intracellular killing and could be optimized to develop a lead drug candidate.
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Devi P, Bishnoi A, Fatma S. Synthesis, Spectroscopic Properties, and Quantum Mechanical Study of 5-Oxo-1-phenyl-4-(piperidin-1-ylmethyl)pyrrolidine-3-carboxylic Acid. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2020. [DOI: 10.1134/s1070428020030173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Mollanejad K, Asghari S, Jadidi K. Diastereoselective synthesis of pyrrolo[1, 2‐c]imidazoles using chiral thiohydantoins, malononitrile, and aldehydes and evaluation of their antioxidant and antibacterial activities. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3762] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Khadijeh Mollanejad
- Department of Organic Chemistry, Faculty of ChemistryUniversity of Mazandaran Babolsar Iran
| | - Sakineh Asghari
- Department of Organic Chemistry, Faculty of ChemistryUniversity of Mazandaran Babolsar Iran
- Nano and Biotechnology Research GroupUniversity of Mazandaran Babolsar Iran
| | - Khosrow Jadidi
- Department of ChemistryShahid Beheshti University Tehran Iran
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Study of the anti(myco)bacterial and antitumor activities of prolinate and N-amidocarbothiolprolinate derivatives based on fused tetrahydropyrrolo[3,4-c]pyrrole-1,3(2H,3aH)-dione, bearing an indole ring. MONATSHEFTE FUR CHEMIE 2018. [DOI: 10.1007/s00706-018-2286-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Nural Y, Gemili M, Seferoglu N, Sahin E, Ulger M, Sari H. Synthesis, crystal structure, DFT studies, acid dissociation constant, and antimicrobial activity of methyl 2-(4-chlorophenyl)-7a-((4-chlorophenyl)carbamothioyl)-1-oxo-5,5-diphenyl-3-thioxo-hexahydro-1H-pyrrolo[1,2-e]imidazole-6-carboxylate. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.01.099] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Gemili M, Sari H, Ulger M, Sahin E, Nural Y. Pt(II) and Ni(II) complexes of octahydropyrrolo[3,4-c]pyrrole N -benzoylthiourea derivatives: Synthesis, characterization, physical parameters and biological activity. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.04.026] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Hunter J, Pask CM, Sridharan V. Iridium catalyzed three component cycloaddition cascades to fused ring heterocycles. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.05.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Cores Á, Estévez V, Villacampa M, Menéndez JC. Three-component access to 2-pyrrolin-5-ones and their use in target-oriented and diversity-oriented synthesis. RSC Adv 2016. [DOI: 10.1039/c6ra06317a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
The combination of two multicomponent reactions,i.e.a Hantzsch-type synthesis of 2-pyrrolin-5-ones and a 1,3-dipolar cycloaddition generated complex spirocyclic systems.
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Affiliation(s)
- Ángel Cores
- Departamento de Química Orgánica y Farmacéutica
- Facultad de Farmacia
- Universidad Complutense
- 28040 Madrid
- Spain
| | - Verónica Estévez
- Departamento de Química Orgánica y Farmacéutica
- Facultad de Farmacia
- Universidad Complutense
- 28040 Madrid
- Spain
| | - Mercedes Villacampa
- Departamento de Química Orgánica y Farmacéutica
- Facultad de Farmacia
- Universidad Complutense
- 28040 Madrid
- Spain
| | - J. Carlos Menéndez
- Departamento de Química Orgánica y Farmacéutica
- Facultad de Farmacia
- Universidad Complutense
- 28040 Madrid
- Spain
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