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Petricci E, Zurzolo S, Matassini C, Maramai S, Cardona F, Goti A, Taddei M. An Intramolecular Hydroaminomethylation-Based Approach to Pyrrolizidine Alkaloids under Microwave-Assisted Heating. Molecules 2022; 27:4762. [PMID: 35897934 DOI: 10.3390/molecules27154762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 07/14/2022] [Accepted: 07/22/2022] [Indexed: 12/04/2022] Open
Abstract
A general method for the synthesis of pyrrolizidine derivatives using an intramolecular hydroaminomethylation protocol (HAM) under microwave (MW) dielectric heating is reported. Starting from a 3,4-bis(benzyloxy)-2-[(benzyloxy)methyl]-5-vinylpyrrolidine, MW-assisted intramolecular HAM in the presence of gaseous H2 and CO gave the natural alkaloid hyacinthacine A2 protected as benzyl ether. The same approach gave a lentiginosine analogue starting from the corresponding vinyl N-hydroxypyrrolidine. The nature of the reaction products and the yields were strongly influenced by the relative stereochemistry of the starting pyrrolidines, as well as by the catalyst/ligand employed. The use of ethanol as a solvent provides environmentally friendly conditions, while the ligand/catalyst system can be recovered by separating the alkaloid product with an SCX column and recycling the ethanolic solution. HAM worked up to three times with the recycled catalyst solution without any significant impact on yield.
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Desai NC, Bhatt K, Jadeja DJ, Mehta HK, Khedkar VM, Sarkar D. Conventional and microwave-assisted organic synthesis of novel antimycobacterial agents bearing furan and pyridine hybrids. Drug Dev Res 2021; 83:416-431. [PMID: 34414591 DOI: 10.1002/ddr.21872] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 07/21/2021] [Accepted: 07/23/2021] [Indexed: 11/07/2022]
Abstract
Drug resistance in tuberculosis poses a serious threat to humanity because currently available antitubercular drugs are ineffective against Mycobacterium tuberculosis (M. tuberculosis). As a result, the approval of Bedaquiline and Delamanid for the treatment of drug-resistant tuberculosis was accelerated. Still, there is an urgent need to search for new antitubercular drugs with novel mechanisms of action (MoA). Due to this, we have designed a synthetic strategy by utilizing microwave-assisted organic synthesis. We have compared our method with the conventional procedure, and the data show that our procedure is more effective in the preparation of title compounds. A unique series of 1-(2-(furan-2-yl)-5-(pyridin-4-yl)-1,3,4-oxadiazol-3(2H)-yl)-3-(aryl)-prop-2-en-1-ones (5a-o) was synthesized utilizing conventional and microwave-assisted techniques. Synthetic compounds were investigated for antitubercular activity against Mycobacterium TB H37 Ra and Mycobacterium bovis (M. bovis). Compound 5b was reported to be the most effective against M. tuberculosis H37 Ra (97.69 percent inhibition at 30 μg/ml) and M. bovis (97.09 percent inhibition at 30 μg/ml). An in silico binding affinity study of mycobacterial enoyl-acyl carrier protein reductase (InhA) reveals the binding mechanism and thermodynamic interactions that determine these molecule's binding affinity. Compound 5b had a high glide score of -8.991 and low glide energy of -49.893 kcal/mol.
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Affiliation(s)
- Nisheeth C Desai
- Division of Medicinal Chemistry, Department of Chemistry, Mahatma Gandhi Campus, Maharaja Krishnakumarsinhji Bhavnagar University, Bhavnagar, India
| | - Kandarp Bhatt
- Division of Medicinal Chemistry, Department of Chemistry, Mahatma Gandhi Campus, Maharaja Krishnakumarsinhji Bhavnagar University, Bhavnagar, India
| | - Dharmpalsinh J Jadeja
- Division of Medicinal Chemistry, Department of Chemistry, Mahatma Gandhi Campus, Maharaja Krishnakumarsinhji Bhavnagar University, Bhavnagar, India
| | - Harsh K Mehta
- Division of Medicinal Chemistry, Department of Chemistry, Mahatma Gandhi Campus, Maharaja Krishnakumarsinhji Bhavnagar University, Bhavnagar, India
| | | | - Dhiman Sarkar
- Combichem Bio-resource Centre, CSIR-National Chemical Laboratory, Pune, India
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Neha Saini, Archana Sharma, Vijay Kumar Thakur, Charalampos Makatsoris, Anshu Dandia, Madhulika Bhagat, Rajiv Kumar Tonk, Prabodh Chander Sharma. Microwave assisted green synthesis of thiazolidin-4-one derivatives: A perspective on potent antiviral and antimicrobial activities. Current Research in Green and Sustainable Chemistry 2020; 3. [ DOI: 10.1016/j.crgsc.2020.100021] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 09/03/2020] [Accepted: 09/04/2020] [Indexed: 10/12/2023]
Abstract
Thiazolidin-4-one has been known as a powerful moiety present in various approved medications. Thiazolidin-4-ones are amongst the most effective and actively explored fields of current antimicrobial and antiviral chemotherapy that portray broad spectrum and potent activity. The wide range of medicinal properties of thiazolidin-4-one related drugs encourages the medicinal chemists to synthesize a significant variety of new medicinal substances. Microwave induced organic reactions earned substantial coverages in recent years due to many advantages such as ease of work, cost-effectiveness, short reaction time and excellent yield. Microwave radiations provide a substitute for traditional heating by incorporating energy to the reactions. The usage of microwave irradiation has contributed to the emergence of innovative ideas in chemistry, as energy absorption and propagation in microwave irradiation is entirely dissimilar to the traditional heating method. In synthetic chemistry, microwave heating is a rapidly growing area of research. This review cover organic synthesis of thiazolidin-4-one analogues via the use of microwave irradiation as an effective technique and the antiviral and antimicrobial action of thiazolidin-4-one based compounds. •Introduction to microwave-assisted synthesis along with benefits and applications. •Microwave irradiation based synthetic routes of various thiazolidin-4-one derivatives. •Ativiral and antimicrobial activity profile of thiazolidin-4-ones prepared by MW irradiation.
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Murlykina MV, Morozova AD, Zviagin IM, Sakhno YI, Desenko SM, Chebanov VA. Aminoazole-Based Diversity-Oriented Synthesis of Heterocycles. Front Chem 2018; 6:527. [PMID: 30555815 PMCID: PMC6282055 DOI: 10.3389/fchem.2018.00527] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 10/11/2018] [Indexed: 02/02/2023] Open
Abstract
The comprehensive review contains the analysis of literature data concerning reactions of heterocyclization of aminoazoles and demonstrates the application of these types of transformations in diversity-oriented synthesis. The review is oriented to wide range of chemists working in the field of organic synthesis and both experimental and theoretical studies of nitrogen-containing heterocycles.
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Affiliation(s)
- Maryna V Murlykina
- Department of Organic and Bioorganic Chemistry, State Scientific Institution "Institute for Single Crystals", National Academy of Sciences of Ukraine (NAS), Kharkiv, Ukraine
| | - Alisa D Morozova
- Department of Organic and Bioorganic Chemistry, State Scientific Institution "Institute for Single Crystals", National Academy of Sciences of Ukraine (NAS), Kharkiv, Ukraine
| | - Ievgen M Zviagin
- Department of Organic and Bioorganic Chemistry, State Scientific Institution "Institute for Single Crystals", National Academy of Sciences of Ukraine (NAS), Kharkiv, Ukraine
| | - Yana I Sakhno
- Department of Organic and Bioorganic Chemistry, State Scientific Institution "Institute for Single Crystals", National Academy of Sciences of Ukraine (NAS), Kharkiv, Ukraine
| | - Sergey M Desenko
- Department of Organic and Bioorganic Chemistry, State Scientific Institution "Institute for Single Crystals", National Academy of Sciences of Ukraine (NAS), Kharkiv, Ukraine.,Chemistry Faculty, Karazin Kharkiv National University, Kharkiv, Ukraine
| | - Valentyn A Chebanov
- Department of Organic and Bioorganic Chemistry, State Scientific Institution "Institute for Single Crystals", National Academy of Sciences of Ukraine (NAS), Kharkiv, Ukraine.,Chemistry Faculty, Karazin Kharkiv National University, Kharkiv, Ukraine
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Rossino G, Raimondi MV, Rui M, Di Giacomo M, Rossi D, Collina S. PEG 400/Cerium Ammonium Nitrate Combined with Microwave-Assisted Synthesis for Rapid Access to Beta-Amino Ketones. An Easy-to-Use Protocol for Discovering New Hit Compounds. Molecules 2018; 23:molecules23040775. [PMID: 29597271 PMCID: PMC6017047 DOI: 10.3390/molecules23040775] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 03/22/2018] [Accepted: 03/26/2018] [Indexed: 11/16/2022] Open
Abstract
Compound libraries are important requirement in target-based drug discovery. In the present work, a small focused compound library based on β-aminoketone scaffold has been prepared combining microwave-assisted organic synthesis (MAOS) with polymer-assisted solution phase synthesis (PASPS) and replacing reaction workup standard purification procedures with solid phase extraction (SPE). Specifically, the effects of solvent, such as dioxane, dimethylformamide (DMF), polyethylene glycol 400 (PEG 400), temperature, irradiation time, stoichiometric ratio of reagents, and catalysts (HCl, acetic acid, cerium ammonium nitrate (CAN)) were investigated to maximize both conversion and yield. The optimized protocol generally afforded the desired products in satisfying yields and purities. The designed library is a part of our current research on sigma 1 receptor modulators, a valuable tool for the identification of novel potential hit compounds.
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Affiliation(s)
- Giacomo Rossino
- Drug Sciences Department, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, 27100 Pavia, Italy.
| | - Maria Valeria Raimondi
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies, Medicinal Chemistry and Pharmaceutical Technologies Section, University of Palermo, 90100 Palermo, Italy.
| | - Marta Rui
- Drug Sciences Department, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, 27100 Pavia, Italy.
| | - Marcello Di Giacomo
- Drug Sciences Department, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, 27100 Pavia, Italy.
| | - Daniela Rossi
- Drug Sciences Department, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, 27100 Pavia, Italy.
| | - Simona Collina
- Drug Sciences Department, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, 27100 Pavia, Italy.
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Sood R, Donnadio A, Giancola S, Kreisz A, Jones DJ, Cavaliere S. 1,2,3-Triazole-Functionalized Polysulfone Synthesis through Microwave-Assisted Copper-Catalyzed Click Chemistry: A Highly Proton Conducting High Temperature Membrane. ACS Appl Mater Interfaces 2016; 8:16897-16906. [PMID: 27243583 DOI: 10.1021/acsami.6b02713] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Microwave heating holds all the aces regarding development of effective and environmentally friendly methods to perform chemical transformations. Coupling the benefits of microwave-enhanced chemistry with highly reliable copper-catalyzed azide-alkyne cycloaddition (CuAAC) click chemistry paves the way for a rapid and efficient synthesis procedure to afford high performance thermoplastic materials. We describe herein fast and high yielding synthesis of 1,2,3-triazole-functionalized polysulfone through microwave-assisted CuAAC as well as explore their potential as phosphoric acid doped polymer electrolyte membranes (PEM) for high temperature PEM fuel cells. Polymers with various degrees of substitution of the side-chain functionality of 1,4-substituted 1,2,3-triazole with alkyl and aryl pendant structures are prepared by sequential chloromethylation, azidation, and microwave-assisted CuAAC using a range of alkynes (1-pentyne, 1-nonyne, and phenylacetylene). The completeness of reaction at each step and the purity of the clicked polymers were confirmed by (1)H-(13)C NMR, DOSY-NMR and FTIR-ATR spectroscopies. The thermal and thermochemical properties of the modified polymers were characterized by differential scanning calorimetry and thermogravimetric analysis coupled with mass spectroscopy (TG-MS), respectively. TG-MS analysis demonstrated that the commencement of the thermal degradation takes place with the decomposition of the triazole ring while its substituents have critical influence on the initiation temperature. Polysulfone functionalized with 4-phenyl-1,2,3-triazole demonstrates significantly higher Tg, Td, and elastic modulus than the ones bearing 4-propyl-1,2,3-triazole and 4-heptyl-1,2,3-triazole groups. After doping with phosphoric acid, the functionalized polymers with acid doping level of 5 show promising performance with high proton conductivity in anhydrous conditions (in the range of 27-35 mS/cm) and satisfactorily high elastic modulus (in the range of 332-349 MPa).
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Affiliation(s)
- Rakhi Sood
- Institut Charles Gerhardt Montpellier, UMR CNRS 5253, Agrégats Interfaces et Matériaux pour l'Energie, Université de Montpellier , 34095 Cedex 5 Montpellier, France
| | - Anna Donnadio
- Institut Charles Gerhardt Montpellier, UMR CNRS 5253, Agrégats Interfaces et Matériaux pour l'Energie, Université de Montpellier , 34095 Cedex 5 Montpellier, France
| | - Stefano Giancola
- Institut Charles Gerhardt Montpellier, UMR CNRS 5253, Agrégats Interfaces et Matériaux pour l'Energie, Université de Montpellier , 34095 Cedex 5 Montpellier, France
| | - Aurélien Kreisz
- Institut Charles Gerhardt Montpellier, UMR CNRS 5253, Agrégats Interfaces et Matériaux pour l'Energie, Université de Montpellier , 34095 Cedex 5 Montpellier, France
| | - Deborah J Jones
- Institut Charles Gerhardt Montpellier, UMR CNRS 5253, Agrégats Interfaces et Matériaux pour l'Energie, Université de Montpellier , 34095 Cedex 5 Montpellier, France
| | - Sara Cavaliere
- Institut Charles Gerhardt Montpellier, UMR CNRS 5253, Agrégats Interfaces et Matériaux pour l'Energie, Université de Montpellier , 34095 Cedex 5 Montpellier, France
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