1
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Khandan S, Yavari I. Formation of bis-spiropyrrolidines from isatin, secondary amines, and alkylidene Meldrum's acids. Mol Divers 2024; 28:85-95. [PMID: 36800110 DOI: 10.1007/s11030-023-10610-0] [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: 10/31/2022] [Accepted: 01/21/2023] [Indexed: 02/18/2023]
Abstract
A catalyst-free synthesis of stable bis-spiropyrrolidines from isatin, secondary amines, and alkylidene Meldrum's acids in MeCN in 75-95% yield is described. The antioxidant and antimicrobial properties of the synthesized compounds are investigated. For this purpose, the radical scavenging activities of four derivatives were studied by radical trapping of diphenylpicrylhydrazine and ferric reduction power experiments. Disk diffusion test on Gram-positive and Gram-negative bacteria was employed to investigate antibacterial activities of five derivatives.
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Affiliation(s)
- Samira Khandan
- Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Issa Yavari
- Department of Chemistry, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran.
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2
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Avula S, Ullah S, Halim SA, Khan A, Anwar MU, Csuk R, Al-Harrasi A, Rostami A. Meldrum-Based-1 H-1,2,3-Triazoles as Antidiabetic Agents: Synthesis, In Vitro α-Glucosidase Inhibition Activity, Molecular Docking Studies, and In Silico Approach. ACS OMEGA 2023; 8:24901-24911. [PMID: 37483205 PMCID: PMC10357758 DOI: 10.1021/acsomega.3c01291] [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: 02/26/2023] [Accepted: 05/19/2023] [Indexed: 07/25/2023]
Abstract
A series of novel alkyl derivatives (2-5a,b) and 1H-1,2,3-triazole analogues (7a-k) of Meldrum's acid were synthesized in a highly effective way by using "click" chemistry and screened for in vitro α-glucosidase inhibitory activity to examine their antidiabetic potential. 1H NMR, 13C-NMR, and high-resolution electrospray ionization mass spectra (HR-ESI-MS) were used to analyze each of the newly synthesized compounds. Interestingly, these compounds demonstrated high to moderate α-glucosidase inhibitory potency having an IC50 range of 4.63-80.21 μM. Among these derivatives, compound 7i showed extraordinary inhibitory activity and was discovered to be several times more potent than the parent compound Meldrum (1) and the standard drug acarbose. Later, molecular docking was performed to understand the binding mode and the binding strength of all the compounds with the target enzyme, which revealed that all compounds are well fitted in the active site of α-glucosidase. To further ascertain the structure of compounds, suitable X-ray single crystals of compounds 5a, 7a, and 7h were developed and studied. The current investigation has shown that combining 1H-1,2,3-triazole with the Meldrum moiety is beneficial. Furthermore, this is the first time that the aforementioned activity of these compounds has been reported.
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Affiliation(s)
- Satya
Kumar Avula
- Natural
and Medical Sciences Research Center, University
of Nizwa, P.O. Box 33,
Postal Code 616, Birkat Al Mauz, Nizwa, Sultanate of Oman
| | - Saeed Ullah
- Natural
and Medical Sciences Research Center, University
of Nizwa, P.O. Box 33,
Postal Code 616, Birkat Al Mauz, Nizwa, Sultanate of Oman
| | - Sobia Ahsan Halim
- Natural
and Medical Sciences Research Center, University
of Nizwa, P.O. Box 33,
Postal Code 616, Birkat Al Mauz, Nizwa, Sultanate of Oman
| | - Ajmal Khan
- Natural
and Medical Sciences Research Center, University
of Nizwa, P.O. Box 33,
Postal Code 616, Birkat Al Mauz, Nizwa, Sultanate of Oman
| | - Muhammad U. Anwar
- Natural
and Medical Sciences Research Center, University
of Nizwa, P.O. Box 33,
Postal Code 616, Birkat Al Mauz, Nizwa, Sultanate of Oman
| | - René Csuk
- Organic
Chemistry, Martin-Luther-University Halle-Wittenberg, Kurt-Mothes-Str. 2, D-06120 Halle (Saale), Germany
| | - Ahmed Al-Harrasi
- Natural
and Medical Sciences Research Center, University
of Nizwa, P.O. Box 33,
Postal Code 616, Birkat Al Mauz, Nizwa, Sultanate of Oman
| | - Ali Rostami
- Natural
and Medical Sciences Research Center, University
of Nizwa, P.O. Box 33,
Postal Code 616, Birkat Al Mauz, Nizwa, Sultanate of Oman
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3
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de la Fuente MC, Ageitos L, Lages MA, Martínez-Matamoros D, Forero AM, Balado M, Lemos ML, Rodríguez J, Jiménez C. Structural Requirements for Ga 3+ Coordination in Synthetic Analogues of the Siderophore Piscibactin Deduced by Chemical Synthesis and Density Functional Theory Calculations. Inorg Chem 2023; 62:7503-7514. [PMID: 37140938 DOI: 10.1021/acs.inorgchem.3c00787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Stereoselective total synthesis of several analogues of piscibactin (Pcb), the siderophore produced by different pathogenic Gram-negative bacteria, was performed. The acid-sensitive α-methylthiazoline moiety was replaced by a more stable thiazole ring, differing in the configuration of the OH group at the C-13 position. The ability of these Pcb analogues to form complexes with Ga3+ as a mimic of Fe3+ showed that the configuration of the hydroxyl group at C-13 as 13S is crucial for the chelation of Ga3+ to preserve the metal coordination, while the presence of a thiazole ring instead of the α-methylthiazoline moiety does not affect such coordination. A complete 1H and 13C NMR chemical shift assignment of the diastereoisomer mixtures around C9/C10 was done for diagnostic stereochemical disposition. Additionally, density functional theory calculations were performed not only for confirming the stereochemistry of the Ga3+ complex among the six possible diastereoisomers but also for deducing the ability of these to form octahedral coordination spheres with gallium. Finally, the lack of antimicrobial activity of Pcb and Pcb thiazole analogue Ga3+ complexes against Vibrio anguillarum agrees with one of the roles of siderophores in protecting pathogens from metal ion toxicity. The efficient metal coordination shown by this scaffold suggests its possible use as a starting point for the design of new chelating agents or vectors for the development of new antibacterials that exploit the "Trojan horse" strategy using the microbial iron uptake mechanisms. The results obtained will be of great help in the development of biotechnological applications for these types of compounds.
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Affiliation(s)
- M Carmen de la Fuente
- CICA─Centro Interdisciplinar de Química e Bioloxía, Departamento de Química, Facultade de Ciencias, Universidade da Coruña, A Coruña 15071, Spain
| | - Lucía Ageitos
- CICA─Centro Interdisciplinar de Química e Bioloxía, Departamento de Química, Facultade de Ciencias, Universidade da Coruña, A Coruña 15071, Spain
| | - Marta A Lages
- Departamento de Microbiología y Parasitología, Instituto de Acuicultura, Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain
| | - Diana Martínez-Matamoros
- CICA─Centro Interdisciplinar de Química e Bioloxía, Departamento de Química, Facultade de Ciencias, Universidade da Coruña, A Coruña 15071, Spain
| | - Abel M Forero
- CICA─Centro Interdisciplinar de Química e Bioloxía, Departamento de Química, Facultade de Ciencias, Universidade da Coruña, A Coruña 15071, Spain
| | - Miguel Balado
- Departamento de Microbiología y Parasitología, Instituto de Acuicultura, Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain
| | - Manuel L Lemos
- Departamento de Microbiología y Parasitología, Instituto de Acuicultura, Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain
| | - Jaime Rodríguez
- CICA─Centro Interdisciplinar de Química e Bioloxía, Departamento de Química, Facultade de Ciencias, Universidade da Coruña, A Coruña 15071, Spain
| | - Carlos Jiménez
- CICA─Centro Interdisciplinar de Química e Bioloxía, Departamento de Química, Facultade de Ciencias, Universidade da Coruña, A Coruña 15071, Spain
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4
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Bukhari SNA, Abdelgawad MA, Ahmed N, Amjad MW, Hussain MA, Elsherif MA, Ejaz H, Alotaibi NH, Filipović I, Janković N. Synthesis, Characterization, and Biological Evaluation of Meldrum's Acid Derivatives: Dual Activity and Molecular Docking Study. Pharmaceuticals (Basel) 2023; 16:281. [PMID: 37259425 PMCID: PMC9968196 DOI: 10.3390/ph16020281] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 02/03/2023] [Accepted: 02/05/2023] [Indexed: 09/28/2023] Open
Abstract
In the presented study, eight novel Meldrum's acid derivatives containing various vanillic groups were synthesized. Vanillidene Meldrum's acid compounds were tested against different cancer cell lines and microbes. Out of nine, three showed very good biological activity against E. coli, and HeLa and A549 cell lines. It is shown that the O-alkyl substituted derivatives possessed better antimicrobial and anticancer activities in comparison with the O-acyl ones. The decyl substituted molecule (3i) has the highest activity against E. coli (MIC = 12.4 μM) and cancer cell lines (HeLa, A549, and LS174 = 15.7, 21.8, and 30.5 μM, respectively). The selectivity index of 3i is 4.8 (HeLa). The molecular docking study indicates that compound 3i showed good binding affinity to DNA, E. coli Gyrase B, and topoisomerase II beta. The covalent docking showed that 3i was a Michael acceptor for the nucleophiles Lys and Ser. The best Eb was noted for the topoisomerase II beta-LYS482-3i cluster.
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Affiliation(s)
- Syed Nasir Abbas Bukhari
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jouf University, Sakaka 72388, Al Jouf, Saudi Arabia
| | | | - Naveed Ahmed
- Department of Pharmaceutics, College of Pharmacy, Jouf University, Sakaka 72388, Al Jouf, Saudi Arabia
| | - Muhammad Wahab Amjad
- Center for Ultrasound Molecular Imaging and Therapeutics, Pittsburgh Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Muhammad Ajaz Hussain
- Centre for Organic Chemistry, School of Chemistry, University of the Punjab, Lahore 54590, Pakistan
| | - Mervat A. Elsherif
- Chemistry Department, College of Science, Jouf University, Sakaka 72388, Al Jouf, Saudi Arabia
| | - Hasan Ejaz
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka 72388, Al Jouf, Saudi Arabia
| | - Nasser H. Alotaibi
- Department of Clinical Pharmacy, College of Pharmacy, Jouf University, Sakaka 72388, Al Jouf, Saudi Arabia
| | - Ignjat Filipović
- University of Kragujevac, Faculty of Science, Radoja Domanovića 12, 34000 Kragujevac, Serbia
| | - Nenad Janković
- University of Kragujevac, Department of Science, Institute for Information Technologies Kragujevac, Jovana Cvijića bb, 34000 Kragujevac, Serbia
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5
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Kamlar M, Urban M, Veselý J. Enantioselective Synthesis of Spiro Heterocyclic Compounds Using a Combination of Organocatalysis and Transition-Metal Catalysis. CHEM REC 2023:e202200284. [PMID: 36703545 DOI: 10.1002/tcr.202200284] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 12/30/2022] [Indexed: 01/28/2023]
Abstract
Over the last ten years, the combination of organocatalysis with transition metal (TM) catalysis has become one of the most important toolboxes used for synthesizing optically pure compounds containing chiral quaternary centers, including spiro heterocyclic molecules. The dominant method in the enantioselective synthesis of spiro heterocyclic compounds based on synergistic catalysis includes chiral aminocatalysis and NHC catalysis, as already established covalent organocatalytic strategies. Another area of organocatalysis widely combined with TM catalysis producing enantiomerically enriched spiro heterocyclic compounds is non-covalent catalysis, dominated by chiral phosphoric acids, thiourea, and squaramide derivatives. This review article aims to summarize enantioselective methods used for constructing spirocyclic heterocycles based on a combination of organocatalysis and transition metal catalysis.
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Affiliation(s)
- Martin Kamlar
- Charles University Faculty of Science: Univerzita Karlova Prirodovedecka fakulta, Prague, CZECH REPUBLIC
| | - Michal Urban
- Charles University Faculty of Science: Univerzita Karlova Prirodovedecka fakulta, Prague, CZECH REPUBLIC
| | - Jan Veselý
- Charles University Faculty of Science: Univerzita Karlova Prirodovedecka fakulta, Prague, CZECH REPUBLIC
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6
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Ahlburg NL, Hergert O, Jones PG, Werz DB. Donor-Acceptor Cyclopropanes: Activation Enabled by a Single, Vinylogous Acceptor. Angew Chem Int Ed Engl 2023; 62:e202214390. [PMID: 36322458 PMCID: PMC10099577 DOI: 10.1002/anie.202214390] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Indexed: 11/05/2022]
Abstract
A novel class of highly activated donor-acceptor cyclopropanes bearing only a single, vinylogous acceptor is presented. These strained moieties readily undergo cycloadditions with aldehydes, ketones, thioketones, nitriles, naphth-2-ols and various other substrates to yield the corresponding carbo- and heterocycles. Diastereocontrol can be achieved through the choice of catalyst (Brønsted or Lewis acid). The formation of tetrahydrofurans was shown to be highly enantiospecific when chiral cyclopropanes are employed. A series of mechanistic and kinetic experiments was conducted to elucidate a plausible catalytic cycle and to rationalize the stereochemical outcome.
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Affiliation(s)
- Nils L. Ahlburg
- Technische Universität BraunschweigInstitute of Organic ChemistryHagenring 3038106BraunschweigGermany
| | - Oliver Hergert
- Technische Universität BraunschweigInstitute of Organic ChemistryHagenring 3038106BraunschweigGermany
| | - Peter G. Jones
- Technische Universität BraunschweigInstitute of Inorganic and Analytical ChemistryHagenring 3038106BraunschweigGermany
| | - Daniel B. Werz
- Albert-Ludwigs-Universität FreiburgInstitute of Organic ChemistryAlbertstraße 2179104Freiburg (Breisgau)Germany
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7
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Ahlburg NL, Hergert O, Jones PG, Werz DB. Donor‐Acceptor Cyclopropanes: Activation Enabled by a Single, Vinylogous Acceptor. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202214390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Affiliation(s)
- Nils L. Ahlburg
- Technische Universität Braunschweig Institute of Organic Chemistry Hagenring 30 38106 Braunschweig Germany
| | - Oliver Hergert
- Technische Universität Braunschweig Institute of Organic Chemistry Hagenring 30 38106 Braunschweig Germany
| | - Peter G. Jones
- Technische Universität Braunschweig Institute of Inorganic and Analytical Chemistry Hagenring 30 38106 Braunschweig Germany
| | - Daniel B. Werz
- Albert-Ludwigs-Universität Freiburg Institute of Organic Chemistry Albertstraße 21 79104 Freiburg (Breisgau) Germany
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8
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Rademann J, Ahsanullah A, Hassan A, Ansari FL. Integration of C-Acylation in the Solid-Phase Synthesis of Peptides and Peptidomimetics Employing Meldrum’s Acid, Phosphorus, and Sulfur Ylides. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1667-3648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AbstractThe modification of native peptides to peptidomimetics is an important goal in medicinal chemistry and requires, in many cases, the integration of C-acylation steps involving amino acids with classical peptide synthesis. Many classical C-acylation protocols involving Claisen condensations and the use of ylides are not compatible with peptide synthesis, mostly due to the requirements for strong bases leading to epimerization or deprotection of peptides. Meldrum’s acid as well as several specific phosphorus and sulfur ylides, however, are acidic enough to provide reactive C-nucleophiles under mildly basic conditions tolerated during peptide synthesis. This review provides an overview of peptide-compatible C-acylations using Meldrum’s acid and phosphorus and sulfur ylides, and their application in the medicinal chemistry of peptides.1 Introduction2 C-Acylation of Meldrum’s Acid2.1 C-Acylation of Meldrum’s Acid on Solid Phase3 Ylides as Substrates for C-Acylation3.1 C-Acylation of Phosphorus Ylides in Solution Phase3.2 C-Acylation of Solid-Supported Phosphorus Ylides3.3 C-Acylation of Sulfur Ylides3.4 C-Acylation of Solid-Supported Sulfur Ylides4 Miscellaneous Ylides as Acyl Anion Equivalents5 Summary
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Affiliation(s)
- Jörg Rademann
- Institut für Pharmazie, Medizinische Chemie, Freie Universität Berlin
| | | | - Abbas Hassan
- Department of Chemistry, Quaid-i-Azam University
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9
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Shankaraiah N, Tokala R, Bora D. Contribution of Knoevenagel Condensation Products towards Development of Anticancer Agents: An Updated Review. ChemMedChem 2022; 17:e202100736. [PMID: 35226798 DOI: 10.1002/cmdc.202100736] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 02/23/2022] [Indexed: 11/10/2022]
Abstract
Knoevenagel condensation is an entrenched, prevailing, prominent arsenal following greener principles in the generation of α, β-unsaturated ketones/carboxylic acids by involving carbonyl functionalities and active methylenes. This reaction has proved to be a major driving force in many multicomponent reactions indicating the prolific utility towards the development of biologically fascinating molecules. This eminent reaction was acclimatised on different pharmacophoric aldehydes (benzimidazole, β-carboline, phenanthrene, indole, imidazothiadiazole, pyrazole etc.) and active methylenes (oxindole, barbituric acid, Meldrum's acid, thiazolidinedione etc.) to generate the library of chemical compounds. Their potential was also explicit to understand the significance of functionalities involved, which thereby evoke further developments in drug discovery. Furthermore, most of these reaction products exhibited remarkable anticancer activity in nanomolar to micromolar ranges by targeting different cancer targets like DNA, microtubules, Topo-I/II, and kinases (PIM, PARP, NMP, p300/CBP) etc. This review underscores the efficiency of the Knoevenagel condensation explored in the past six-year to generate molecules of pharmacological interest, predominantly towards cancer. The present review also provides the aspects of structure-activity relationships, mode of action and docking study with possible interaction with the target protein.
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Affiliation(s)
- Nagula Shankaraiah
- National Institute of Pharmaceutical Education and Research NIPER, Department of Medicinal Chemistry, Balanagar, 500037, Hyderabad, INDIA
| | - Ramya Tokala
- NIPER Hyderabad: National Institute of Pharmaceutical Education and Research Hyderabad, Medicinal Chemistry, INDIA
| | - Darshana Bora
- NIPER Hyderabad: National Institute of Pharmaceutical Education and Research Hyderabad, Medicinal Chemistry, INDIA
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10
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Kotha S, Gaikwad V. Functionalization of Meldrum’s Acid by Diels‒Alder Approach. HETEROCYCLES 2022. [DOI: 10.3987/com-21-14574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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11
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de Gonzalo G, Alcántara AR. Recent Developments in the Synthesis of β-Diketones. Pharmaceuticals (Basel) 2021; 14:ph14101043. [PMID: 34681266 PMCID: PMC8541089 DOI: 10.3390/ph14101043] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 10/02/2021] [Accepted: 10/11/2021] [Indexed: 12/16/2022] Open
Abstract
Apart from being one of the most important intermediates in chemical synthesis, broadly used in the formation of C-C bonds among other processes, the β-dicarbonyl structure is present in a huge number of biologically and pharmaceutically active compounds. In fact, mainly derived from the well-known antioxidant capability associated with the corresponding enol tautomer, β-diketones are valuable compounds in the treatment of many pathological disorders, such as cardiovascular and liver diseases, hypertension, obesity, diabetes, neurological disorders, inflammation, skin diseases, fibrosis, or arthritis; therefore, the synthesis of these structures is an area of overwhelming interest for organic chemists. This paper is devoted to the advances achieved in the last ten years for the preparation of 1,3-diketones, using different chemical (Claisen, hydration of alkynones, decarboxylative coupling) or catalytic (biocatalysis, organocatalytic, metal-based catalysis) methodologies: Additionally, the preparation of branched β-dicarbonyl compounds by means of α-functionalization of non-substituted 1,3-diketones are also discussed.
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Affiliation(s)
- Gonzalo de Gonzalo
- Organic Chemistry Department, University of Sevilla, c/Profesor García González 2, 41012 Sevilla, Spain
- Correspondence: (G.d.G.); (A.R.A.); Tel.: +34-95-455-99-97 (G.d.G.); +34-91-394-18-21 (A.R.A.)
| | - Andrés R. Alcántara
- Department of Chemistry in Pharmaceutical Sciences, Faculty of Pharmacy, Complutense University of Madrid, Plaza de Ramón y Cajal, s/n., 28040 Madrid, Spain
- Correspondence: (G.d.G.); (A.R.A.); Tel.: +34-95-455-99-97 (G.d.G.); +34-91-394-18-21 (A.R.A.)
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12
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Brosge F, Singh P, Almqvist F, Bolm C. Selected applications of Meldrum's acid - a tutorial. Org Biomol Chem 2021; 19:5014-5027. [PMID: 34019615 DOI: 10.1039/d1ob00395j] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Due to its unique structure and the vast array of substituents that can be attached to its core, Meldrum's acid is a molecule with exceptional chemical properties. In water, it has a remarkably low pKa value of about 4.9. Its C5 position is readily involved in electrophilic substitution reactions whereas the C4 and C6 positions are easily attacked by nucleophiles. At elevated temperatures Meldrum's acid undergoes distinctive decomposition pathways, which can be used in cycloaddition and acylation reactions. In this Tutorial Review, the authors intend to introduce the principles of the synthetic chemistry of Meldrum's acid and provide the essential knowledge for the design and preparation of compounds with desired properties. As there are many reviews focusing on a specific detail of Meldrum's acid chemistry, we would like to give a broader picture of this diverse molecule for undergraduate and graduate students as well as experienced lab leaders. For achieving this goal, some recent advances in using Meldrum's acid derivatives in synthetic scenarios are presented with the hope to further stimulate and promote research leading to additional innovative applications of this synthetically highly relevant molecule.
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Affiliation(s)
- Felix Brosge
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany.
| | - Pardeep Singh
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany.
| | - Fredrik Almqvist
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany.
| | - Carsten Bolm
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany.
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13
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Yavari I, Fadakar Y. Reverse orientation in the ultrasound-assisted [3 + 2]-cycloaddition reaction of nitrile imines with 3-formylchromone-Meldrum's acid adducts. Mol Divers 2021; 26:1141-1150. [PMID: 34129183 DOI: 10.1007/s11030-021-10240-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 05/28/2021] [Indexed: 11/26/2022]
Abstract
The [3 + 2]-cycloaddition reaction of nitrile imines with 2,2-dimethyl-5-[(4-oxo-4H-chromen-3-yl)methylene]-1,3-dioxane-4,6-dione tends to form the reverse-orientation products under ultrasound irradiation in EtOH in the presence of Et3N. Evidence for the structure of product 5b was obtained from single-crystal X-ray analysis.
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Affiliation(s)
- Issa Yavari
- Department of Chemistry, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran.
| | - Younes Fadakar
- Department of Chemistry, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran
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14
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Gökce H, Alpaslan G, Kaya S, Çakır N. Structural, Bioactivity, Molecular Docking, Spectroscopic and Electronic Properties of a Synthesized Meldrum's Acid Derivative. ChemistrySelect 2021. [DOI: 10.1002/slct.202100927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Halil Gökce
- Vocational School of Health Services Giresun University 28200 Giresun Turkey
| | - Gökhan Alpaslan
- Vocational School of Health Services Giresun University 28200 Giresun Turkey
| | - Serdal Kaya
- Department of Aeronautical Faculty of Aviation and Space Sciences Necmettin Erbakan University 42090 Konya Turkey
| | - Nezaket Çakır
- Department of Chemistry Faculty of Art and Science Giresun University 28200 Giresun Turkey
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15
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Heard DM, Lennox AJJ. Dichloromeldrum's Acid (DiCMA): A Practical and Green Amine Dichloroacetylation Reagent. Org Lett 2021; 23:3368-3372. [PMID: 33844547 DOI: 10.1021/acs.orglett.1c00850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Dichloromeldrum's acid is introduced as a bench-stable, nonvolatile reagent for the dichloroacetylation of anilines and alkyl amines to produce α,α-dichloroacetamides, which are important motifs for medicinal chemistry. Products are formed in good to excellent yields with reagent grade solvents, and, as the only byproducts are acetone and CO2, no column chromatography is required. Thus, this reagent is practical, efficient, and green for the dichloroacetylation of primary amines.
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Affiliation(s)
- David M Heard
- School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, U.K
| | - Alastair J J Lennox
- School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, U.K
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16
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Lozynskyi A, Holota S, Yushyn I, Sabadakh O, Karpenko O, Novikov V, Lesyk R. Synthesis and Biological Activity Evaluation of Polyfunctionalized Anthraquinonehydrazones. LETT DRUG DES DISCOV 2021. [DOI: 10.2174/1570180817999200802032844] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background :
Anthraquinone derivatives, frequently occurring motifs in many various
natural compounds, have attracted a great deal of interest as compounds with a wide spectrum of
biological activities.
Introduction:
The hybrid pharmacophore approach has become an object of considerable interest
due to the incorporation of a five- or six-membered heterocyclic rings in the structure of various
natural compounds, especially anthraquinone derivatives.
Methods:
A series of polyfunctionalized anthraquinonehydrazones have been synthesized via the
azo-coupling reaction between anthraquinone-based triazenes and methylene active compounds. The
structures of synthesized compounds were confirmed by spectral data. Some of the synthesized
compounds were screened for their in vitro anticancer activity according to US NCI protocols. The
screening of antimicrobial and antifungal activities against Candida albicans and Lactobacillus sp.
was carried out. The synthesized compounds were evaluated for their antioxidant (DPPH free radical
scavenging assay) and herbicidal activity.
Results:
The synthesized 1-[N'-(5-oxo-2-thioxoimidazolidin-4-ylidene)-hydrazino]-anthraquinone
1.5 displayed a high level of antimitotic activity against tested human tumor cells with mean
GI50/TGI values 4.06/78.52μM. The screening of antimicrobial and antifungal activities led to the
identification of 1.8 and 1.9 with a moderate effect on Candida albicans and Lactobacillus sp. Antioxidant
activity evaluation allowed the identification of 1-[N'-(3-methyl-5-oxo-1-phenyl-1,5-
dihydropyrazol-4-ylidene)-hydrazino]-anthraquinone 1.8 with an IC50 value of 3.715 mM. The herbicidal
activity screening led to compound identification 1.8 with growth inhibition of Agrostis stolonifera
at 25 %.
Conclusion:
The obtained anthraquinonehydrazones constitute an interesting template for the design
of new synthetic agents with polypharmacological activities.
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Affiliation(s)
- Andrii Lozynskyi
- Department of Pharmaceutical, Organic and Bioorganic Chemistry, Danylo Halytsky Lviv National Medical University, Pekarska 69, Lviv 79010, Ukraine
| | - Serhii Holota
- Department of Pharmaceutical, Organic and Bioorganic Chemistry, Danylo Halytsky Lviv National Medical University, Pekarska 69, Lviv 79010, Ukraine
| | - Ihor Yushyn
- Department of Pharmaceutical, Organic and Bioorganic Chemistry, Danylo Halytsky Lviv National Medical University, Pekarska 69, Lviv 79010, Ukraine
| | - Oksana Sabadakh
- Department of Environmental Chemistry and Chemistry Education, Vasyl Stefanyk Precarpathian National University, Halytska 201, Ivano-Frankivsk 76000, Ukraine
| | | | - Volodymyr Novikov
- Department of Technology of Biologically Active Substances, Pharmacy and Biotechnology, Lviv Polytechnic National University, Bandery 12, Lviv 79013, Ukraine
| | - Roman Lesyk
- Department of Pharmaceutical, Organic and Bioorganic Chemistry, Danylo Halytsky Lviv National Medical University, Pekarska 69, Lviv 79010, Ukraine
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17
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Pakravan N, Beiginejad H, Shayani-Jam H, Paziresh S. Electrochemical oxidation of urazoles in the presence of Meldrum’s acid derivatives: Synthesis of new urazole species, experimental and computational study. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Fereyduni E, Lahtigui O, Sanders JN, Tomiczek BM, Mannchen MD, Yu RA, Houk KN, Grenning AJ. Overcoming Kinetic and Thermodynamic Challenges of Classic Cope Rearrangements. J Org Chem 2021; 86:2632-2643. [PMID: 33476142 DOI: 10.1021/acs.joc.0c02690] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Systematic evaluation of 1,5-dienes bearing 3,3-electron-withdrawing groups and 4-methylation results in the discovery of a Cope rearrangement for Meldrum's acid-containing substrates that have unexpectedly favorable kinetic and thermodynamic profiles. The protocol is quite general due to a concise and convergent synthesis from abundant starting materials. Furthermore, products with an embedded Meldrum's acid moiety are prepared, which, in turn, can yield complex amides under neutral conditions. We have now expanded the scope of the reductive Cope rearrangement, which, via chemoselective reduction, can promote thermodynamically unfavorable [3,3] sigmatropic rearrangements of 3,3-dicyano-1,5-dienes to form reduced Cope rearrangement products. The Cope rearrangement is found to be stereospecific and can yield enantioenriched building blocks when chiral, nonracemic 1,3-disubstituted allylic electrophiles are utilized. We expand further the use of Cope rearrangements for the synthesis of highly valuable building blocks for complex- and drug-like molecular synthesis.
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Affiliation(s)
- Ehsan Fereyduni
- Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Ouidad Lahtigui
- Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Jacob N Sanders
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Breanna M Tomiczek
- Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Michael D Mannchen
- Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Roland A Yu
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - K N Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Alexander J Grenning
- Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
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19
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Wang Y, Huang X, Wang Q, Tang Y, Xu S, Li Y. Synthesis of Cyclopentadienes for Cyclopentadienyl Ligands via Cp*Rh III-Catalyzed Formal sp 3 C-H Activation/Spiroannulations. Org Lett 2021; 23:757-761. [PMID: 33439664 DOI: 10.1021/acs.orglett.0c03982] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
An efficient Cp*RhIII-catalyzed formal C(sp3)-H activation/spiroannulation of alkylidene Meldrum's acids with alkynes has been developed using catalytical Cu(OAc)2 and air as the oxidant. This reaction demonstrates a new and straightforward approach to spirocyclopentadienes with Meldrum's acid moieties in good to excellent yields under mild reaction conditions with a broad substrate scope. Notably, this protocol provides a novel and straightforward approach to cyclopentadienes with various substitution patterns and the corresponding cyclopentadienyl-type ligands from simple substrates.
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Affiliation(s)
- Yongzhuang Wang
- Department of Material Chemistry, School of Chemistry and Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an 710049, P.R. China
| | - Xiaoli Huang
- Department of Material Chemistry, School of Chemistry and Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an 710049, P.R. China
| | - Qin Wang
- Department of Material Chemistry, School of Chemistry and Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an 710049, P.R. China
| | - Yuhai Tang
- Department of Material Chemistry, School of Chemistry and Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an 710049, P.R. China
| | - Silong Xu
- Department of Material Chemistry, School of Chemistry and Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an 710049, P.R. China
| | - Yang Li
- Department of Material Chemistry, School of Chemistry and Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an 710049, P.R. China
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20
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Xu Z, Ye H, Zhang W, Xiao Q. A Four-Component Reaction for the Synthesis of Dispirotetrahydro-quinoline-bis(1,3-dioxane-4,6-dione) Derivatives Catalyzed by Tartaric Acid. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202008051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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Meng QY, Gao F, Mosad S, Zhang Z, You YZ, Hong CY. Facile Multicomponent Polymerization and Postpolymerization Modification via an Effective Meldrum's Acid-Based Three-Component Reaction. Macromol Rapid Commun 2020; 42:e2000610. [PMID: 33345361 DOI: 10.1002/marc.202000610] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/02/2020] [Indexed: 02/03/2023]
Abstract
Providing access to highly diverse polymer structures by multicomponent reactions is highly desirable; efficient Meldrum's acid-based multicomponent reactions, however, have been rarely highlighted in polymer chemistry. Here, the three-component reaction of Meldrum's acid, indole, and aldehyde is introduced into polymer synthesis. Direct multicomponent polymerization of Meldrum's acid, dialdehyde, and diindole can perform under mild conditions, resulting in complex Meldrum's acid-containing polymers with well-defined structures, and high molecular weights. Additionally, nearly quantitative postpolymerization modification can also perform via this Meldrum's acid-based multicomponent reaction. These results indicate that Meldrum's acid-based multicomponent reaction will be a potential tool to prepare novel polymers.
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Affiliation(s)
- Qing-Yong Meng
- First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230022, P. R. China
| | - Fan Gao
- Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Smaher Mosad
- Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Ze Zhang
- Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Ye-Zi You
- Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Chun-Yan Hong
- Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
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22
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Jardim M, Baldassari LL, Contreira ME, Moro AV, Lüdtke DS. Boron/zinc exchange for the conjugate arylation of unsaturated Meldrum’s acid derivatives. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.130967] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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23
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Yamamoto Y, Sakai M, Ishida Y, Yasui T. Synthesis of 1-(Difluoromethyl)alk-1-enes via Palladium-Catalyzed S N2'-Type Substitution Reaction of Difluoromethylated Allylic Phosphates with 1,3-Dicarbonyl Compounds and Imides. J Org Chem 2020; 86:1053-1064. [PMID: 33253567 DOI: 10.1021/acs.joc.0c02538] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Herein, we report the synthesis of 1-(difluoromethyl)alkenes via a palladium-catalyzed reaction of difluoromethyl-substituted allylic phosphates with 1,3-dicarbonyl compounds using PdCl2(PPh3)2 as a precatalyst. 1,3-Dicarbonyl compounds attacked the γ-carbon with respect to the difluoromethyl group to afford their corresponding SN2'-type substitution products irrespective of the substitution pattern in the allylic phosphates. This regioselectivity has been ascribed to the electronic environment of the unsymmetrical π-allylpalladium intermediate using density functional theory (DFT) calculations. The reaction of difluoromethyl-substituted allylic phosphates with imides was also carried out using a different catalyst system composed of [PdCl(η3-allyl)]2 and di(diphenylphosphino)butane (dppb).
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Affiliation(s)
- Yoshihiko Yamamoto
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan
| | - Motoji Sakai
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan
| | - Yuki Ishida
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan
| | - Takeshi Yasui
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan
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24
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Wu F, Xie J, Zhu Z. 1,10‐Phenanthroline: A versatile ligand to promote copper‐catalyzed cascade reactions. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5926] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Fengtian Wu
- Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices, School of Chemistry, Biology and Material Science East China University of Technology Nanchang 330013 China
| | - Jianwei Xie
- College of Chemistry and Bioengineering Hunan University of Science and Engineering Yongzhou 425199 China
| | - Zhiqiang Zhu
- Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices, School of Chemistry, Biology and Material Science East China University of Technology Nanchang 330013 China
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25
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Brosge F, Kochs JF, Bregu M, Truong KN, Rissanen K, Bolm C. 5-Carbonyl-1,3-oxazine-2,4-diones from N-Cyanosulfoximines and Meldrum's Acid Derivatives. Org Lett 2020; 22:6667-6670. [PMID: 32806203 DOI: 10.1021/acs.orglett.0c02504] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
At elevated temperatures, N-cyanosulfoximines react with Meldrum's acid derivatives to give sulfoximines with N-bound 5-carbonyl-1,3-oxazine-2,4-dione groups. A representative product was characterized by single-crystal X-ray structure analysis. The product formation involves an unexpected molecular reorientation requiring several sequential bond-forming and -cleaving processes.
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Affiliation(s)
- Felix Brosge
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Johannes Florian Kochs
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Mariela Bregu
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Khai-Nghi Truong
- Department of Chemistry, University of Jyvaskyla, P.O. Box 35, Survontie 9 B, FI-40014 Jyväskylä, Finland
| | - Kari Rissanen
- Department of Chemistry, University of Jyvaskyla, P.O. Box 35, Survontie 9 B, FI-40014 Jyväskylä, Finland
| | - Carsten Bolm
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
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26
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Yuan L, He L, Wang Y, Lang X, Yang F, Zhao Y, Zhao H. Two- and Three-Component Post-Polymerization Modifications Based on Meldrum’s Acid. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00482] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Ling Yuan
- Key Laboratory of Advanced Technology of Materials (Ministry of Education of China), School of Materials Science and Engineering, Superconductivity and New Energy R&D Center, Southwest Jiaotong University, Chengdu 610031, China
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Lirong He
- Institut für Technische und Makromolekulare Chemie, Universität Hamburg, Bundesstraße 45, Hamburg 20146, Germany
| | - Yixi Wang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Xianhua Lang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Feng Yang
- Key Laboratory of Advanced Technology of Materials (Ministry of Education of China), School of Materials Science and Engineering, Superconductivity and New Energy R&D Center, Southwest Jiaotong University, Chengdu 610031, China
| | - Yong Zhao
- Key Laboratory of Advanced Technology of Materials (Ministry of Education of China), School of Materials Science and Engineering, Superconductivity and New Energy R&D Center, Southwest Jiaotong University, Chengdu 610031, China
| | - Hui Zhao
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
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27
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Zhang M, Li T, Cui C, Song X, Chang J. Stereoselective Sequential Spirocyclopropanation/Cloke-Wilson Rearrangement Reactions for Synthesis of trans-β,γ-Disubstituted γ-Butyrolactones Using Alkylidene Meldrum's Acid and Benzyl Halides. J Org Chem 2020; 85:2266-2276. [PMID: 31920086 DOI: 10.1021/acs.joc.9b02978] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The stereoselective sequential spirocyclopropanation/Cloke-Wilson rearrangement reactions have been developed to synthesize γ-butyrolactones using alkylidene Meldrum's acids and benzyl halides. The DBU-promoted spirocyclopropanation was carried out efficiently at room temperature to generate trans-isomeric spirocyclopropyl Meldrum's acid, and the following stereospecific thermal decarboxylative Cloke-Wilson rearrangement afforded trans-γ-butyrolactones. A variety of aromatic and aliphatic Meldrum's acid derived olefins and benzyl halides were tolerated. Various trans-β,γ-disubstituted γ-butyrolactones were produced with moderate to good overall yields from 46 to 96% and excellent diastereoselectivities.
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Affiliation(s)
- Minli Zhang
- College of Chemistry , Zhengzhou University , No. 100 Science Avenue , Zhengzhou 450001 , P. R. China
| | - Tong Li
- College of Chemistry , Zhengzhou University , No. 100 Science Avenue , Zhengzhou 450001 , P. R. China
| | - Chaoxing Cui
- College of Chemistry , Zhengzhou University , No. 100 Science Avenue , Zhengzhou 450001 , P. R. China
| | - Xixi Song
- College of Chemistry , Zhengzhou University , No. 100 Science Avenue , Zhengzhou 450001 , P. R. China
| | - Junbiao Chang
- College of Chemistry , Zhengzhou University , No. 100 Science Avenue , Zhengzhou 450001 , P. R. China
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28
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Li T, Yan D, Cui C, Song X, Chang J. A thermal decarboxylative Cloke–Wilson rearrangement of dispirocyclopropanes derived from para-quinone methides and bromo-Meldrum's acids: an approach to synthesize spirobutyrolactone para-dienones. Org Chem Front 2020. [DOI: 10.1039/d0qo00770f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
An unprecedented approach to synthesize spirobutyrolactone para-dienones from para-quinone methides and bromo-Meldrum's acids has been developed.
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Affiliation(s)
- Tong Li
- College of Chemistry
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Dandan Yan
- Shanghai Gengcai New Material Technology Co. Ltd
- Shanghai 201108
- China
| | - Chaoxing Cui
- College of Chemistry
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Xixi Song
- College of Chemistry
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Junbiao Chang
- College of Chemistry
- Zhengzhou University
- Zhengzhou 450001
- China
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29
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Xu Z, Liao C, Tang Y, Xiao Q. A One-Pot Four-Component Procedure for the Synthesis of Dispiro[tetrahydroquinoline-bis(2,2-dimethyl-1,3-dioxane-4,6-dione)] Derivatives. HETEROCYCLES 2020. [DOI: 10.3987/com-20-14314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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30
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Filho MA, de Santana LLB, Rivelino R, Cunha S. A theoretical investigation on the nucleophilic behavior of Meldrum’s acid linked to experimental evidences. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2019.136908] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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31
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Kumar SS, Sreepriya R, Biju S, Sadasivan V. Synthesis, crystal structure and spectroscopic studies of trivalent Fe(III) and mixed valent ion-pair Co(II,III) complexes with 5-(2-(2-hydroxyphenyl)hydrazono)-2,2-dimethyl-4,6-dione. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.07.049] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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32
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Bakthadoss M, Jayakumar S, Raman S, Devaraj A, Sharada DS. A novel multicomponent quadruple/double quadruple domino reaction: highly efficient synthesis of polyheterocyclic architectures. Org Biomol Chem 2019; 17:3884-3893. [PMID: 30574986 DOI: 10.1039/c8ob02970a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel multicomponent quadruple domino reaction (MCQDR) for the assembly of structurally complex molecular architectures via the formation of three rings and three contiguous stereogenic centers has been accomplished with high regio- and diastereoselectivity. Solvents, catalysts and work-up were not required to obtain the target molecules. In addition, this new protocol is also extended for the multicomponent double quadruple domino reaction (MCDQDR) to create novel polyheterocyclic architectures in an orthogonal manner.
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Affiliation(s)
- Manickam Bakthadoss
- Department of Chemistry, Pondicherry University, Puducherry - 605 014, India.
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33
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Structural, spectroscopic and microbiological characterization of the chalcone 2E-1-(2ʹ-hydroxy-3ʹ,4ʹ,6ʹ-trimethoxyphenyl)-3-(phenyl)-prop-2-en-1-one derived from the natural product 2-hydroxy-3,4,6-trimethoxyacetophenone. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.11.075] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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34
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Lambert KM, Medley AW, Jackson AC, Markham LE, Wood JL. Synthesis of Chiral Tetramic Acids: Preparation of ( S)-5-Benzylpyrrolidine-2,4-dione from L-Phenylalanine Methyl Ester Hydrochloride. ORGANIC SYNTHESES; AN ANNUAL PUBLICATION OF SATISFACTORY METHODS FOR THE PREPARATION OF ORGANIC CHEMICALS 2019; 96:528-585. [PMID: 32367897 PMCID: PMC7197348 DOI: 10.15227/orgsyn.096.0528] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Kyle M Lambert
- Department of Chemistry and Biochemistry, Baylor University, One Bear Place 97348, Waco, Texas 76798, United States
| | - Austin W Medley
- Department of Chemistry and Biochemistry, Baylor University, One Bear Place 97348, Waco, Texas 76798, United States
| | - Amy C Jackson
- Department of Chemistry and Biochemistry, Baylor University, One Bear Place 97348, Waco, Texas 76798, United States
| | - Lauren E Markham
- Department of Chemistry and Biochemistry, Baylor University, One Bear Place 97348, Waco, Texas 76798, United States
| | - John L Wood
- Department of Chemistry and Biochemistry, Baylor University, One Bear Place 97348, Waco, Texas 76798, United States
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35
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Fereyduni E, Sanders JN, Gonzalez G, Houk KN, Grenning AJ. Transient [3,3] Cope rearrangement of 3,3-dicyano-1,5-dienes: computational analysis and 2-step synthesis of arylcycloheptanes. Chem Sci 2018; 9:8760-8764. [PMID: 30627397 PMCID: PMC6295866 DOI: 10.1039/c8sc03057j] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 09/20/2018] [Indexed: 12/20/2022] Open
Abstract
A simple and modular route to arylcycloheptene scaffolds is reported. The two-step route from Knoevenagel adducts and allylic electrophiles is made possible through the design of a Cope rearrangement that utilizes a "traceless" activating group to promote an otherwise thermodynamically unfavorable transformation. Experimentally, the [3,3] rearrangement occurrs transiently at room temperature with a computed barrier of 19.5 kcal mol-1, which ultimately allows for three-component bis-allylation. Ring-closing metathesis delivers the arylcycloheptane and removes the activating group. This report describes the design and optimization of the methodology, scope and mechanistic studies, and computational analysis.
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Affiliation(s)
- Ehsan Fereyduni
- Department of Chemistry , University of Florida , P.O. Box 117200 , Gainesville , FL 32611 , USA .
| | - Jacob N Sanders
- Department of Chemistry and Biochemistry , University of California - Los Angeles , 607 Charles E. Young Drive East, Box 951569 , Los Angeles , CA 90095-1569 , USA .
| | - Gabriel Gonzalez
- Department of Chemistry , University of Florida , P.O. Box 117200 , Gainesville , FL 32611 , USA .
| | - K N Houk
- Department of Chemistry and Biochemistry , University of California - Los Angeles , 607 Charles E. Young Drive East, Box 951569 , Los Angeles , CA 90095-1569 , USA .
| | - Alexander J Grenning
- Department of Chemistry , University of Florida , P.O. Box 117200 , Gainesville , FL 32611 , USA .
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36
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Yuan J, Rao CB, Liang Y, Zhang R, Zhang Q, Hou L, Dong D. Copper‐Catalyzed Regioselective Oxidative Cycloamidation of
α
‐[(
β
‐Dimethylamino)propenoyl]‐Alkylamides: Synthetic Route to Substituted Pyrrolidine‐2,4‐diones. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801237] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Jingwen Yuan
- Key Laboratory of High Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
- University of the Chinese Academy of Sciences Beijing 100049 People's Republic of China
| | - Chitturi Bhujanga Rao
- Key Laboratory of High Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| | - Yongjiu Liang
- Key Laboratory of High Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| | - Rui Zhang
- Key Laboratory of High Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| | - Qian Zhang
- Key Laboratory of High Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| | - Liman Hou
- Key Laboratory of High Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| | - Dewen Dong
- Key Laboratory of High Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
- University of the Chinese Academy of Sciences Beijing 100049 People's Republic of China
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37
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Mills JJ, Robinson KR, Zehnder TE, Pierce JG. Synthesis and Biological Evaluation of the Antimicrobial Natural Product Lipoxazolidinone A. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805078] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Jonathan J. Mills
- Department of Chemistry and Comparative Medicine Institute North Carolina State University 2620 Yarbrough Drive Raleigh NC 27695 USA
| | - Kaylib R. Robinson
- Department of Chemistry and Comparative Medicine Institute North Carolina State University 2620 Yarbrough Drive Raleigh NC 27695 USA
| | - Troy E. Zehnder
- Department of Chemistry and Comparative Medicine Institute North Carolina State University 2620 Yarbrough Drive Raleigh NC 27695 USA
| | - Joshua G. Pierce
- Department of Chemistry and Comparative Medicine Institute North Carolina State University 2620 Yarbrough Drive Raleigh NC 27695 USA
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Mills JJ, Robinson KR, Zehnder TE, Pierce JG. Synthesis and Biological Evaluation of the Antimicrobial Natural Product Lipoxazolidinone A. Angew Chem Int Ed Engl 2018; 57:8682-8686. [PMID: 29845720 DOI: 10.1002/anie.201805078] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Indexed: 11/09/2022]
Abstract
Natural products have historically been a major source of antibiotics and therefore novel scaffolds are constantly of interest. The lipoxazolidinone family of marine natural products, with an unusual 4-oxazolidinone heterocycle at their core, represents a new scaffold for antimicrobial discovery; however, questions regarding their mechanism of action and high lipophilicity have likely slowed follow-up studies. Herein, we report the first synthesis of lipoxazolidinone A, 15 structural analogues to explore its active pharmacophore, and initial resistance and mechanism of action studies. These results suggest that 4-oxazolidinones are valuable scaffolds for antimicrobial development and reveal simplified lead compounds for further optimization.
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Affiliation(s)
- Jonathan J Mills
- Department of Chemistry and Comparative Medicine Institute, North Carolina State University, 2620 Yarbrough Drive, Raleigh, NC, 27695, USA
| | - Kaylib R Robinson
- Department of Chemistry and Comparative Medicine Institute, North Carolina State University, 2620 Yarbrough Drive, Raleigh, NC, 27695, USA
| | - Troy E Zehnder
- Department of Chemistry and Comparative Medicine Institute, North Carolina State University, 2620 Yarbrough Drive, Raleigh, NC, 27695, USA
| | - Joshua G Pierce
- Department of Chemistry and Comparative Medicine Institute, North Carolina State University, 2620 Yarbrough Drive, Raleigh, NC, 27695, USA
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39
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Riveira MJ, Marcarino MO, La-Venia A. Multicomponent Domino Synthesis of Cyclopenta[b]furan-2-ones. Org Lett 2018; 20:4000-4004. [DOI: 10.1021/acs.orglett.8b01567] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Martín J. Riveira
- Instituto de Química Rosario, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario-CONICET, Suipacha 531, S2002LRK Rosario, Argentina
| | - Maribel O. Marcarino
- Instituto de Química Rosario, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario-CONICET, Suipacha 531, S2002LRK Rosario, Argentina
| | - Agustina La-Venia
- Instituto de Química Rosario, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario-CONICET, Suipacha 531, S2002LRK Rosario, Argentina
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40
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Lespes N, Pair E, Maganga C, Bretier M, Tognetti V, Joubert L, Levacher V, Hubert-Roux M, Afonso C, Loutelier-Bourhis C, Brière JF. A Unique (3+2) Annulation Reaction between Meldrum's Acid and Nitrones: Mechanistic Insight by ESI-IMS-MS and DFT Studies. Chemistry 2018; 24:4086-4093. [PMID: 29297600 DOI: 10.1002/chem.201705714] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Indexed: 11/10/2022]
Abstract
The fragile intermediates of the domino process leading to an isoxazolidin-5-one, triggered by unique reactivity between Meldrum's acid and an N-benzyl nitrone in the presence of a Brønsted base, were determined thanks to the softness and accuracy of electrospray ionization mass spectrometry coupled to ion mobility spectrometry (ESI-IMS-MS). The combined DFT study shed light on the overall organocatalytic sequence that starts with a stepwise (3+2) annulation reaction that is followed by a decarboxylative protonation sequence encompassing a stereoselective pathway issue.
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Affiliation(s)
- Nicolas Lespes
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA, 76000, Rouen, France
| | - Etienne Pair
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA, 76000, Rouen, France
| | - Clisy Maganga
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA, 76000, Rouen, France
| | - Marie Bretier
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA, 76000, Rouen, France
| | - Vincent Tognetti
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA, 76000, Rouen, France
| | - Laurent Joubert
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA, 76000, Rouen, France
| | - Vincent Levacher
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA, 76000, Rouen, France
| | - Marie Hubert-Roux
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA, 76000, Rouen, France
| | - Carlos Afonso
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA, 76000, Rouen, France
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41
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Sayahi MH, Saghanezhad SJ, Mahdavi M. SBA-15-SO3H-assisted preparation of 4-aza-phenanthrene-3,10-dione derivatives via a one-pot, four-component reaction. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-017-3131-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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42
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Nakatani K, Natsuhara N, Mori Y, Mukherjee S, Das B, Murata A. Synthesis of Naphthyridine Dimers with Conformational Restriction and Binding to DNA and RNA. Chem Asian J 2017; 12:3077-3087. [DOI: 10.1002/asia.201701293] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 09/30/2017] [Indexed: 12/11/2022]
Affiliation(s)
- Kazuhiko Nakatani
- Department of Regulatory Bioorganic Chemistry; The Institute of Scientific and Industrial Research; Osaka University; 8-1 Mihogaoka Ibaraki 567-0047 Japan
| | - Nozomi Natsuhara
- Department of Regulatory Bioorganic Chemistry; The Institute of Scientific and Industrial Research; Osaka University; 8-1 Mihogaoka Ibaraki 567-0047 Japan
| | - Yuki Mori
- Department of Regulatory Bioorganic Chemistry; The Institute of Scientific and Industrial Research; Osaka University; 8-1 Mihogaoka Ibaraki 567-0047 Japan
| | - Sanjukta Mukherjee
- Department of Regulatory Bioorganic Chemistry; The Institute of Scientific and Industrial Research; Osaka University; 8-1 Mihogaoka Ibaraki 567-0047 Japan
| | - Bimolendu Das
- Department of Regulatory Bioorganic Chemistry; The Institute of Scientific and Industrial Research; Osaka University; 8-1 Mihogaoka Ibaraki 567-0047 Japan
| | - Asako Murata
- Department of Regulatory Bioorganic Chemistry; The Institute of Scientific and Industrial Research; Osaka University; 8-1 Mihogaoka Ibaraki 567-0047 Japan
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43
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Campelo M, Freire P, Mendes Filho J, de Toledo T, Teixeira A, da Silva L, Bento R, Faria J, Pizani P, Gusmão G, Coutinho H, Oliveira M. Synthesis, crystal structure, vibrational spectra and theoretical calculations of quantum chemistry of a potential antimicrobial Meldrum's acid derivative. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.06.071] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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44
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Hajighasemi H, Yazdani-Elah-Abadi A, Shams N. An Efficient and Green Stereoselective Synthesis of Functionalized 3-Indol-3-yl-oxoindolin-3-yl-3-acrylates via Nano-Fe3O4-Promoted One-Pot Four-Component Domino Reactions. Polycycl Aromat Compd 2017. [DOI: 10.1080/10406638.2017.1355326] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
| | | | - Nasim Shams
- Young Researchers and Elite Club, Yazd Branch, Islamic Azad University, Yazd, Iran
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45
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Dual Inhibition of AChE and BChE with the C-5 Substituted Derivative of Meldrum’s Acid: Synthesis, Structure Elucidation, and Molecular Docking Studies. CRYSTALS 2017. [DOI: 10.3390/cryst7070211] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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46
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De K, Bhanja P, Bhaumik A, Mukhopadhyay C. An ExpeditiousSynthesis of Spiro[chromeno[2,3-c]pyrazole-4,3′-indolin]-2′5-diones Catalysed by RecyclableSpinel ZnFe2
O4
Nanopowder. ChemistrySelect 2017. [DOI: 10.1002/slct.201700643] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kajal De
- Department of Chemistry; University of Calcutta; 92 APC Road Kolkata- 700009, India
| | - Piyali Bhanja
- Departmentof Materials Science; Indian Association for the Cultivation of Science, Jadavpur; Kolkata 700 032 India
| | - Asim Bhaumik
- Departmentof Materials Science; Indian Association for the Cultivation of Science, Jadavpur; Kolkata 700 032 India
| | - Chhanda Mukhopadhyay
- Department of Chemistry; University of Calcutta; 92 APC Road Kolkata- 700009, India
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47
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An efficient domino one-pot synthesis of novel spirofuran-indenoquinoxalines by vinyltriphenylphosphonium salts. J CHEM SCI 2017. [DOI: 10.1007/s12039-017-1292-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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48
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Vajargahy MP, Dabiri M, Bazgir A. Carbon-based leaving group capability of Meldrum’s acid in substitution reactions: a new strategy toward the synthesis of 4-phenyl-3, 4-dihydro-2H-benzo[g]chromene-2, 5, 10-triones. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2017. [DOI: 10.1007/s13738-017-1129-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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49
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Mishra S, Liu J, Aponick A. Enantioselective Alkyne Conjugate Addition Enabled by Readily Tuned Atropisomeric P,N-Ligands. J Am Chem Soc 2017; 139:3352-3355. [DOI: 10.1021/jacs.7b00363] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Sourabh Mishra
- Center for Heterocyclic Compounds,
Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Ji Liu
- Center for Heterocyclic Compounds,
Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Aaron Aponick
- Center for Heterocyclic Compounds,
Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
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50
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Bew SP, Stephenson GR, Rouden J, Godemert J, Seylani H, Martinez-Lozano LA. Gaining Insight Into Reactivity Differences Between Malonic Acid Half Thioesters (MAHT) and Malonic Acid Half Oxyesters (MAHO). Chemistry 2017; 23:4557-4569. [DOI: 10.1002/chem.201605148] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Indexed: 01/15/2023]
Affiliation(s)
- Sean P. Bew
- School of Chemistry; Norwich Research Park; University of East Anglia; NR4 7TJ UK
| | | | - Jacques Rouden
- Laboratoire de Chimie Moleculaire et thio-organique (LCMT); UMR CNRS 6507, Ensicaen; 6 Boulevard du Marechal Juin 14050 Caen France
| | - Jeremy Godemert
- School of Chemistry; Norwich Research Park; University of East Anglia; NR4 7TJ UK
| | - Haseena Seylani
- School of Chemistry; Norwich Research Park; University of East Anglia; NR4 7TJ UK
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