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Belikov MY, Milovidova AG, Ievlev MY, Fedoseev SV. Synthesis of the first 4-oxobutane-1,1,2,2-tetracarbonitriles containing a phenol fragment and their transformation into cyano-substituted pyrrol-2-ones showing three-position molecular switching. Org Biomol Chem 2024; 22:4757-4765. [PMID: 38804092 DOI: 10.1039/d4ob00612g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
The first example of the synthesis of 4-oxobutane-1,1,2,2-tetracarbonitriles (OTCs) containing a phenolic moiety has been described. The synthesis is based on the reaction between tetracyanoethylene and 4-hydroxyphenyl-substituted ketones under mild conditions. Due to the presence of a phenolic hydroxyl group, these compounds are more functionalized derivatives of the well-known OTC substrates used for diversity-oriented synthesis (DOS). The preserved synthetic potential of the OTCs for the preparation of phenol-containing derivatives with enhanced capabilities for tuning optical properties has been shown using the targeted synthesis of 2-(2-oxo-1,2-dihydro-3H-pyrrol-3-ylidene)malononitriles. Based on the obtained pyrroles and a model amine (pyrrolidine) a previously unknown type of thermosensitive three-position molecular switch is described. Reversible color changes of the dye are shown in both solution and on filter paper. The results reveal a new research branch of the OTC-based DOS strategy to access functionalized phenol-containing derivatives.
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Affiliation(s)
- Mikhail Yu Belikov
- Ulyanov Chuvash State University, Moskovsky pr., 15, Cheboksary, Russia.
| | | | - Mikhail Yu Ievlev
- Ulyanov Chuvash State University, Moskovsky pr., 15, Cheboksary, Russia.
| | - Sergey V Fedoseev
- Ulyanov Chuvash State University, Moskovsky pr., 15, Cheboksary, Russia.
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Tummanapalli S, Gulipalli KC, Bodige S, Pommidi AK, Boya R, Choppadandi S, Bakangari MR, Punna SK, Medaboina S, Mamindla DY, Kanuka A, Endoori S, Ganapathi VK, Kottam SD, Kalbhor D, Valluri M. Cu-Catalyzed Tandem C-N and C-C Bond Formation Leading to 4( 1H)-Quinolones: A Scaffold with Diverse Biological Properties from Totally New Raw Materials in a Single Step. J Org Chem 2024; 89:1609-1617. [PMID: 38238153 DOI: 10.1021/acs.joc.3c02215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
A novel Cu-catalyzed tandem C-N and C-C bond-formation reaction has been developed to furnish 2-substituted-4-(1H)-quinolones. 4-(1H)-quinolones play an important role in medicinal chemistry. Many 2-aryl(alkyl)-4(1H)-quinolones are found to exhibit diverse biological properties. While traditional methods have inherent issues [like starting materials with incompatible functional groups (NH2 and keto groups)], many modern methods either require activated starting materials (like Ynones) or employ expensive metals (Pd, Rh, Au, etc.) involving carbonylation using CO or metal complexes. Our protocol presents an environmentally friendly one-step method for the construction of these useful 2-substituted-4-(1H)-quinolones from easily available aryl boronic acid (or pinacolate ester) and nitriles as new raw materials, using a cheap Cu-catalyst and O2 (air) as a green oxidant. We further extended its application to the synthesis of various natural products, including the first formal total synthesis of punarnavine. A plausible mechanism involving an aryl nitrilium ion (formed due to the intermolecular C-N bond-forming coupling between aryl boron species and the nitrile group) followed by tandem intramolecular C-C bond formation has been proposed.
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Affiliation(s)
- Satyanarayana Tummanapalli
- Curia India Pvt. Ltd (Formerly Albany Molecular Research Hyderabad Research Centre), Plot # 9, MN Park, Turkapally, Shameerpet, Genome Valley, RR District, Hyderabad 500078, India
| | - Kali Charan Gulipalli
- Curia India Pvt. Ltd (Formerly Albany Molecular Research Hyderabad Research Centre), Plot # 9, MN Park, Turkapally, Shameerpet, Genome Valley, RR District, Hyderabad 500078, India
| | - Srinu Bodige
- Curia India Pvt. Ltd (Formerly Albany Molecular Research Hyderabad Research Centre), Plot # 9, MN Park, Turkapally, Shameerpet, Genome Valley, RR District, Hyderabad 500078, India
| | - Anil Kumar Pommidi
- Curia India Pvt. Ltd (Formerly Albany Molecular Research Hyderabad Research Centre), Plot # 9, MN Park, Turkapally, Shameerpet, Genome Valley, RR District, Hyderabad 500078, India
| | - Ravi Boya
- Curia India Pvt. Ltd (Formerly Albany Molecular Research Hyderabad Research Centre), Plot # 9, MN Park, Turkapally, Shameerpet, Genome Valley, RR District, Hyderabad 500078, India
| | - Suresh Choppadandi
- Curia India Pvt. Ltd (Formerly Albany Molecular Research Hyderabad Research Centre), Plot # 9, MN Park, Turkapally, Shameerpet, Genome Valley, RR District, Hyderabad 500078, India
| | - Mahendar Reddy Bakangari
- Curia India Pvt. Ltd (Formerly Albany Molecular Research Hyderabad Research Centre), Plot # 9, MN Park, Turkapally, Shameerpet, Genome Valley, RR District, Hyderabad 500078, India
| | - Shiva Kumar Punna
- Curia India Pvt. Ltd (Formerly Albany Molecular Research Hyderabad Research Centre), Plot # 9, MN Park, Turkapally, Shameerpet, Genome Valley, RR District, Hyderabad 500078, India
| | - Srinivas Medaboina
- Curia India Pvt. Ltd (Formerly Albany Molecular Research Hyderabad Research Centre), Plot # 9, MN Park, Turkapally, Shameerpet, Genome Valley, RR District, Hyderabad 500078, India
| | - Devender Yadav Mamindla
- Curia India Pvt. Ltd (Formerly Albany Molecular Research Hyderabad Research Centre), Plot # 9, MN Park, Turkapally, Shameerpet, Genome Valley, RR District, Hyderabad 500078, India
| | - Ashok Kanuka
- Curia India Pvt. Ltd (Formerly Albany Molecular Research Hyderabad Research Centre), Plot # 9, MN Park, Turkapally, Shameerpet, Genome Valley, RR District, Hyderabad 500078, India
| | - Srinivas Endoori
- Curia India Pvt. Ltd (Formerly Albany Molecular Research Hyderabad Research Centre), Plot # 9, MN Park, Turkapally, Shameerpet, Genome Valley, RR District, Hyderabad 500078, India
| | - Vijay Kumar Ganapathi
- Curia India Pvt. Ltd (Formerly Albany Molecular Research Hyderabad Research Centre), Plot # 9, MN Park, Turkapally, Shameerpet, Genome Valley, RR District, Hyderabad 500078, India
| | - Sainath Dharmavaram Kottam
- Curia India Pvt. Ltd (Formerly Albany Molecular Research Hyderabad Research Centre), Plot # 9, MN Park, Turkapally, Shameerpet, Genome Valley, RR District, Hyderabad 500078, India
| | - Dinesh Kalbhor
- Curia India Pvt. Ltd (Formerly Albany Molecular Research Hyderabad Research Centre), Plot # 9, MN Park, Turkapally, Shameerpet, Genome Valley, RR District, Hyderabad 500078, India
| | - Muralikrishna Valluri
- Curia India Pvt. Ltd (Formerly Albany Molecular Research Hyderabad Research Centre), Plot # 9, MN Park, Turkapally, Shameerpet, Genome Valley, RR District, Hyderabad 500078, India
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Eymery MC, Nguyen KA, Basu S, Hausmann J, Tran-Nguyen VK, Seidel HP, Gutierrez L, Boumendjel A, McCarthy AA. Discovery of potent chromone-based autotaxin inhibitors inspired by cannabinoids. Eur J Med Chem 2024; 263:115944. [PMID: 37976710 DOI: 10.1016/j.ejmech.2023.115944] [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: 08/01/2023] [Revised: 11/05/2023] [Accepted: 11/06/2023] [Indexed: 11/19/2023]
Abstract
Autotaxin (ATX) is an enzyme primarily known for the production of lysophosphatidic acid. Being involved in the development of major human diseases, such as cancer and neurodegenerative diseases, the enzyme has been featured in multiple studies as a pharmacological target. We previously found that the cannabinoid tetrahydrocannabinol (THC) could bind and act as an excellent inhibitor of ATX. This study aims to use the cannabinoid scaffold as a starting point to find cannabinoid-unrelated ATX inhibitors, following a funnel down approach in which large chemical libraries sharing chemical similarities with THC were screened to identify lead scaffold types for optimization. This approach allowed us to identify compounds bearing chromone and indole scaffolds as promising ATX inhibitors. Further optimization led to MEY-003, which is characterized by the direct linkage of an N-pentyl indole to the 5,7-dihydroxychromone moiety. This molecule has potent inhibitory activity towards ATX-β and ATX-ɣ as evidenced by enzymatic studies and its mode of action was rationalized by structural biology studies using macromolecular X-ray crystallography.
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Affiliation(s)
- Mathias Christophe Eymery
- European Molecular Biology Laboratory, EMBL Grenoble, 71 Avenue des Martyrs, 38000, Grenoble, France; Univ. Grenoble Alpes, INSERM U1039, LRB, 38000, Grenoble, France
| | - Kim-Anh Nguyen
- Univ. Grenoble Alpes, INSERM U1039, LRB, 38000, Grenoble, France
| | - Shibom Basu
- European Molecular Biology Laboratory, EMBL Grenoble, 71 Avenue des Martyrs, 38000, Grenoble, France
| | - Jens Hausmann
- European Molecular Biology Laboratory, EMBL Grenoble, 71 Avenue des Martyrs, 38000, Grenoble, France
| | - Viet-Khoa Tran-Nguyen
- Unité de Biologie Fonctionnelle et Adaptative (BFA), Université Paris Cité, 75013, Paris, France
| | - Hans Peter Seidel
- European Molecular Biology Laboratory, EMBL Grenoble, 71 Avenue des Martyrs, 38000, Grenoble, France
| | - Lola Gutierrez
- European Molecular Biology Laboratory, EMBL Grenoble, 71 Avenue des Martyrs, 38000, Grenoble, France
| | | | - Andrew Aloysius McCarthy
- European Molecular Biology Laboratory, EMBL Grenoble, 71 Avenue des Martyrs, 38000, Grenoble, France
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Jachak GR, Orimoloye MO, Aldrich CC. Gram Scale Synthesis of Membrane-Active Antibacterial 4-Quinolone Lead Compound. J Org Chem 2023; 88:6209-6217. [PMID: 37071556 PMCID: PMC10733119 DOI: 10.1021/acs.joc.3c00239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
Abstract
An improved method for the synthesis of a new quinolone class of antibiotics, which are exceptionally potent against gram-positive bacteria, has been developed and the structure confirmed by single-crystal X-ray analysis. In the course of synthesis, using either Chan-Lam coupling or Buchwald-Hartwig amination, we have shown that the careful choice of protecting group at the C4 position of the quinoline is required for selective amination at the C5 position and subsequent deprotection to avoid the formation of a novel pyrido[4,3,2-de]quinazoline tetracycle.
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Affiliation(s)
- Gorakhnath R Jachak
- Department of Medicinal Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Moyosore O Orimoloye
- Department of Medicinal Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Courtney C Aldrich
- Department of Medicinal Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
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