1
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Levterov VV, Panasiuk Y, Shablykin O, Stashkevych O, Sahun K, Rassokhin A, Sadkova I, Lesyk D, Anisiforova A, Holota Y, Borysko P, Bodenchuk I, Voloshchuk NM, Mykhailiuk PK. 2-Oxabicyclo[2.1.1]hexanes: Synthesis, Properties, and Validation as Bioisosteres of ortho- and meta-Benzenes. Angew Chem Int Ed Engl 2024; 63:e202319831. [PMID: 38465464 DOI: 10.1002/anie.202319831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 03/08/2024] [Accepted: 03/11/2024] [Indexed: 03/12/2024]
Abstract
We have developed a general and practical approach towards 2-oxabicyclo[2.1.1]hexanes with two and three exit vectors via an iodocyclization reaction. The obtained compounds have been easily converted into the corresponding building blocks for use in medicinal chemistry. 2-Oxabicyclo[2.1.1]hexanes have been incorporated into the structure of five drugs and three agrochemicals, and validated biologically as bioisosteres of ortho- and meta-benzenes.
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Affiliation(s)
| | | | - Oleh Shablykin
- Enamine Ltd, Winston Churchill Str. 78, 02094, Kyiv, Ukraine
- V. P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry NAS of Ukraine, Academician Kukhar Str. 1, 02094, Kyiv, Ukraine
| | - Oleksandr Stashkevych
- Enamine Ltd, Winston Churchill Str. 78, 02094, Kyiv, Ukraine
- Taras Shevchenko National University of Kyiv, Chemistry Department, Volodymyrska Str. 64, 01601, Kyiv, Ukraine
| | - Kateryna Sahun
- Enamine Ltd, Winston Churchill Str. 78, 02094, Kyiv, Ukraine
| | - Artur Rassokhin
- Enamine Ltd, Winston Churchill Str. 78, 02094, Kyiv, Ukraine
| | - Iryna Sadkova
- Enamine Ltd, Winston Churchill Str. 78, 02094, Kyiv, Ukraine
| | - Dmytro Lesyk
- Bienta, Winston Churchill Str. 78, 02094, Kyiv, Ukraine
| | | | - Yuliia Holota
- Bienta, Winston Churchill Str. 78, 02094, Kyiv, Ukraine
| | - Petro Borysko
- Bienta, Winston Churchill Str. 78, 02094, Kyiv, Ukraine
| | | | - Nataliya M Voloshchuk
- National University of Life and Environmental Sciences of Ukraine, V. F. Peresypkin Department of Phytopathology, Heroyiv Oborony Str. 15, 03041, Kyiv, Ukraine
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2
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Chalyk BA, Zginnyk O, Khutorianskyi AV, Mykhailiuk PK. Functionalization of Alkenes with Difluoromethyl Nitrile Oxide to Access the Difluoromethylated Derivatives. Org Lett 2024; 26:2888-2892. [PMID: 38497552 DOI: 10.1021/acs.orglett.4c00431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Electron-rich, electron-deficient, and non-activated alkenes can be rapidly functionalized by in situ-generated difluoromethyl nitrile oxide. The (3+2) cycloaddition proceeds at room temperature, has broad functional group tolerance, and can be used for the late-stage modification of bioactive molecules (finasteride and carbamazepine). The obtained CF2H-isoxazolines can be easily transformed into CF2H-containing building blocks for medicinal chemistry: amines, amino acids, amino alcohols, and spirocyclic scaffolds.
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Affiliation(s)
- Bohdan A Chalyk
- Enamine Ltd., 78 Winston Churchill Street, Kyiv 02094, Ukraine
- Epiendo Pharmaceuticals, Sverige filial, Banvaktsvägen 22, 171 48 Solna, Stockholm, Sweden
- Institute of Organic Chemistry of the NAS of Ukraine, 5 Academician Kukharya Street, Kyiv 02094, Ukraine
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3
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Prysiazhniuk K, Polishchuk O, Shulha S, Gudzikevych K, Datsenko OP, Kubyshkin V, Mykhailiuk PK. Borylated cyclobutanes via thermal [2 + 2]-cycloaddition. Chem Sci 2024; 15:3249-3254. [PMID: 38425521 PMCID: PMC10901489 DOI: 10.1039/d3sc06600b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 01/17/2024] [Indexed: 03/02/2024] Open
Abstract
A one-step approach to borylated cyclobutanes from amides of carboxylic acids and vinyl boronates is elaborated. The reaction proceeds via the thermal [2 + 2]-cycloaddition of in situ-generated keteniminium salts.
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Affiliation(s)
- Kateryna Prysiazhniuk
- Enamine Ltd Winston Churchill St. 78 02094 Kyiv Ukraine https://www.mykhailiukchem.org
| | - Oleksandr Polishchuk
- Enamine Ltd Winston Churchill St. 78 02094 Kyiv Ukraine https://www.mykhailiukchem.org
| | - Stanislav Shulha
- Enamine Ltd Winston Churchill St. 78 02094 Kyiv Ukraine https://www.mykhailiukchem.org
| | - Kyrylo Gudzikevych
- Enamine Ltd Winston Churchill St. 78 02094 Kyiv Ukraine https://www.mykhailiukchem.org
| | - Oleksandr P Datsenko
- Enamine Ltd Winston Churchill St. 78 02094 Kyiv Ukraine https://www.mykhailiukchem.org
| | - Vladimir Kubyshkin
- Enamine Ltd Winston Churchill St. 78 02094 Kyiv Ukraine https://www.mykhailiukchem.org
| | - Pavel K Mykhailiuk
- Enamine Ltd Winston Churchill St. 78 02094 Kyiv Ukraine https://www.mykhailiukchem.org
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4
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Prysiazhniuk K, Datsenko OP, Polishchuk O, Shulha S, Shablykin O, Nikandrova Y, Horbatok K, Bodenchuk I, Borysko P, Shepilov D, Pishel I, Kubyshkin V, Mykhailiuk PK. Spiro[3.3]heptane as a Saturated Benzene Bioisostere. Angew Chem Int Ed Engl 2024; 63:e202316557. [PMID: 38251921 DOI: 10.1002/anie.202316557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Indexed: 01/23/2024]
Abstract
The spiro[3.3]heptane core, with the non-coplanar exit vectors, was shown to be a saturated benzene bioisostere. This scaffold was incorporated into the anticancer drug sonidegib (instead of the meta-benzene), the anticancer drug vorinostat (instead of the phenyl ring), and the anesthetic drug benzocaine (instead of the para-benzene). The patent-free saturated analogs obtained showed a high potency in the corresponding biological assays.
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Affiliation(s)
| | | | | | | | - Oleh Shablykin
- Enamine Ltd., Winston Churchill Str. 78, 02094, Kyiv, Ukraine
- V. P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry NAS of Ukraine, 02094, Kyiv, Ukraine
| | | | | | | | - Petro Borysko
- Bienta, Winston Churchill Str. 78, 02094, Kyiv, Ukraine
| | | | - Iryna Pishel
- Bienta, Winston Churchill Str. 78, 02094, Kyiv, Ukraine
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5
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Li F, Zhu WF, Empel C, Datsenko O, Kumar A, Xu Y, Ehrler JHM, Atodiresei I, Knapp S, Mykhailiuk PK, Proschak E, Koenigs RM. Photosensitization enables Pauson-Khand-type reactions with nitrenes. Science 2024; 383:498-503. [PMID: 38301027 DOI: 10.1126/science.adm8095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 12/21/2023] [Indexed: 02/03/2024]
Abstract
The Pauson-Khand reaction has in the past 50 years become one of the most common cycloaddition reactions in chemistry. Coupling two unsaturated bonds with carbon monoxide, the transformation remains limited to CO as a C1 building block. Herein we report analogous cycloaddition reactions with nitrenes as an N1 unit. The reaction of a nonconjugated diene with a nitrene precursor produces bicyclic bioisosteres of common saturated heterocycles such as piperidine, morpholine, and piperazine. Experimental and computational mechanistic studies support relaying of the diradical nature of triplet nitrene into the π-system. We showcase the reaction's utility in late-stage functionalization of drug compounds and discovery of soluble epoxide hydrolase inhibitors.
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Affiliation(s)
- Fang Li
- RWTH Aachen University, Institute of Organic Chemistry, Landoltweg 1, D-52074 Aachen, Germany
| | - W Felix Zhu
- RWTH Aachen University, Institute of Organic Chemistry, Landoltweg 1, D-52074 Aachen, Germany
- Goethe University, Institute of Pharmaceutical Chemistry, Max-von-Laue Str. 9, 60438 Frankfurt am Main, Germany
| | - Claire Empel
- RWTH Aachen University, Institute of Organic Chemistry, Landoltweg 1, D-52074 Aachen, Germany
| | | | - Adarsh Kumar
- Goethe University, Institute of Pharmaceutical Chemistry, Max-von-Laue Str. 9, 60438 Frankfurt am Main, Germany
- Structural Genomics Consortium, Buchmann Institute for Molecular Life Sciences, Goethe-University, Max-von-Laue-Str. 15, D-60438 Frankfurt, Germany
| | - Yameng Xu
- RWTH Aachen University, Institute of Organic Chemistry, Landoltweg 1, D-52074 Aachen, Germany
| | - Johanna H M Ehrler
- Goethe University, Institute of Pharmaceutical Chemistry, Max-von-Laue Str. 9, 60438 Frankfurt am Main, Germany
| | - Iuliana Atodiresei
- RWTH Aachen University, Institute of Organic Chemistry, Landoltweg 1, D-52074 Aachen, Germany
| | - Stefan Knapp
- Goethe University, Institute of Pharmaceutical Chemistry, Max-von-Laue Str. 9, 60438 Frankfurt am Main, Germany
- Structural Genomics Consortium, Buchmann Institute for Molecular Life Sciences, Goethe-University, Max-von-Laue-Str. 15, D-60438 Frankfurt, Germany
| | - Pavel K Mykhailiuk
- Enamine Ltd, Winston Churchill Str. 78, 02094 Kyiv, Ukraine
- Chemistry Department, Taras Shevchenko National University of Kyiv, Volodymyrska 64, 01601 Kyiv, Ukraine
| | - Ewgenij Proschak
- Goethe University, Institute of Pharmaceutical Chemistry, Max-von-Laue Str. 9, 60438 Frankfurt am Main, Germany
- Fraunhofer Institute for Translational Medicine and Pharmacology (ITMP), Theodor-Stern-Kai 7, 60596 Frankfurt am Main, Germany
| | - Rene M Koenigs
- RWTH Aachen University, Institute of Organic Chemistry, Landoltweg 1, D-52074 Aachen, Germany
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6
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Denisenko A, Garbuz P, Makovetska Y, Shablykin O, Lesyk D, Al-Maali G, Korzh R, Sadkova IV, Mykhailiuk PK. 1,2-Disubstituted bicyclo[2.1.1]hexanes as saturated bioisosteres of ortho-substituted benzene. Chem Sci 2023; 14:14092-14099. [PMID: 38098705 PMCID: PMC10718076 DOI: 10.1039/d3sc05121h] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 10/25/2023] [Indexed: 12/17/2023] Open
Abstract
Bicyclo[2.1.1]hexanes have been synthesized, characterized, and biologically validated as saturated bioisosteres of the ortho-substituted benzene ring. The incorporation of the 1,2-disubstituted bicyclo[2.1.1]hexane core into the structure of fungicides boscalid (BASF), bixafen (Bayer CS), and fluxapyroxad (BASF) gave saturated patent-free analogs with high antifungal activity.
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Affiliation(s)
- Aleksandr Denisenko
- Enamine Ltd Winston Churchill st. 78 02094 Kyiv Ukraine www.mykhailiukchem.org
| | - Pavel Garbuz
- Enamine Ltd Winston Churchill st. 78 02094 Kyiv Ukraine www.mykhailiukchem.org
| | | | - Oleh Shablykin
- Enamine Ltd Winston Churchill st. 78 02094 Kyiv Ukraine www.mykhailiukchem.org
- V. P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry of the NAS of Ukraine 02094 Kyiv Ukraine
| | - Dmytro Lesyk
- Bienta Winston Churchill st. 78 02094 Kyiv Ukraine
| | - Galeb Al-Maali
- Enamine Ltd Winston Churchill st. 78 02094 Kyiv Ukraine www.mykhailiukchem.org
- Institute of Botany of the National Academy of Sciences of Ukraine 02094 Kyiv Ukraine
| | - Rodion Korzh
- Enamine Ltd Winston Churchill st. 78 02094 Kyiv Ukraine www.mykhailiukchem.org
| | - Iryna V Sadkova
- Enamine Ltd Winston Churchill st. 78 02094 Kyiv Ukraine www.mykhailiukchem.org
| | - Pavel K Mykhailiuk
- Enamine Ltd Winston Churchill st. 78 02094 Kyiv Ukraine www.mykhailiukchem.org
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7
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Kirichok AA, Tkachuk H, Kozyriev Y, Shablykin O, Datsenko O, Granat D, Yegorova T, Bas YP, Semirenko V, Pishel I, Kubyshkin V, Lesyk D, Klymenko-Ulianov O, Mykhailiuk PK. 1-Azaspiro[3.3]heptane as a Bioisostere of Piperidine. Angew Chem Int Ed Engl 2023:e202311583. [PMID: 37819253 DOI: 10.1002/anie.202311583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 10/08/2023] [Accepted: 10/11/2023] [Indexed: 10/13/2023]
Abstract
1-Azaspiro[3.3]heptanes were synthesized, characterized, and validated biologically as bioisosteres of piperidine. The key synthesis step was thermal [2+2] cycloaddition between endocyclic alkenes and the Graf isocyanate, ClO2 S-NCO, to give spirocyclic β-lactams. Reduction of the β-lactam ring with alane produced 1-azaspiro[3.3]heptanes. Incorporation of this core into the anesthetic drug bupivacaine instead of the piperidine fragment resulted in a new patent-free analogue with high activity.
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Affiliation(s)
- Alexander A Kirichok
- Enamine Ltd, Winston Churchill Str. 78, 02094, Kyiv, Ukraine
- Taras Shevchenko National University of Kyiv, Faculty of Chemistry, Volodymyrska 60, 01601, Kyiv, Ukraine
| | | | - Yevhenii Kozyriev
- Enamine Ltd, Winston Churchill Str. 78, 02094, Kyiv, Ukraine
- Oles Honchar Dnipro National University, Faculty of Chemistry, 72 Gagarina Ave., 49010, Dnipro, Ukraine
| | - Oleh Shablykin
- Enamine Ltd, Winston Churchill Str. 78, 02094, Kyiv, Ukraine
- V. P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry of the NAS of Ukraine, Akademika Kukharya 1, 02094, Kyiv, Ukraine
| | | | - Dmitry Granat
- Enamine Ltd, Winston Churchill Str. 78, 02094, Kyiv, Ukraine
| | - Tetyana Yegorova
- Taras Shevchenko National University of Kyiv, Faculty of Chemistry, Volodymyrska 60, 01601, Kyiv, Ukraine
| | - Yuliya P Bas
- Taras Shevchenko National University of Kyiv, Faculty of Chemistry, Volodymyrska 60, 01601, Kyiv, Ukraine
| | | | - Iryna Pishel
- Enamine Ltd, Winston Churchill Str. 78, 02094, Kyiv, Ukraine
| | | | - Dmytro Lesyk
- Bienta, Winston Churchill Str. 78, 02094, Kyiv, Ukraine
| | | | - Pavel K Mykhailiuk
- Enamine Ltd, Winston Churchill Str. 78, 02094, Kyiv, Ukraine
- Taras Shevchenko National University of Kyiv, Faculty of Chemistry, Volodymyrska 60, 01601, Kyiv, Ukraine
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8
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Levterov VV, Panasiuk Y, Sahun K, Stashkevych O, Badlo V, Shablykin O, Sadkova I, Bortnichuk L, Klymenko-Ulianov O, Holota Y, Lachmann L, Borysko P, Horbatok K, Bodenchuk I, Bas Y, Dudenko D, Mykhailiuk PK. 2-Oxabicyclo[2.2.2]octane as a new bioisostere of the phenyl ring. Nat Commun 2023; 14:5608. [PMID: 37783681 PMCID: PMC10545790 DOI: 10.1038/s41467-023-41298-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 08/30/2023] [Indexed: 10/04/2023] Open
Abstract
The phenyl ring is a basic structural element in chemistry. Here, we show the design, synthesis, and validation of its new saturated bioisostere with improved physicochemical properties - 2-oxabicyclo[2.2.2]octane. The design of the structure is based on the analysis of the advantages and disadvantages of the previously used bioisosteres: bicyclo[1.1.1]pentane, bicyclo[2.2.2]octane, and cubane. The key synthesis step is the iodocyclization of cyclohexane-containing alkenyl alcohols with molecular iodine in acetonitrile. 2-Oxabicyclo[2.2.2]octane core is incorporated into the structure of Imatinib and Vorinostat (SAHA) drugs instead of the phenyl ring. In Imatinib, such replacement leads to improvement of physicochemical properties: increased water solubility, enhanced metabolic stability, and reduced lipophilicity. In Vorinostat, such replacement results in a new bioactive analog of the drug. This study enhances the repertoire of available saturated bioisosteres of (hetero)aromatic rings for the use in drug discovery projects.
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Affiliation(s)
| | | | - Kateryna Sahun
- Enamine Ltd., Winston Churchill street 78, 02094, Kyiv, Ukraine
| | | | - Valentyn Badlo
- Enamine Ltd., Winston Churchill street 78, 02094, Kyiv, Ukraine
| | - Oleh Shablykin
- Enamine Ltd., Winston Churchill street 78, 02094, Kyiv, Ukraine
- V. P. Kukhar IBOPC of the NASciences of Ukraine, Academician Kukhar Str. 1, 02094, Kyiv, Ukraine
| | - Iryna Sadkova
- Enamine Ltd., Winston Churchill street 78, 02094, Kyiv, Ukraine
| | - Lina Bortnichuk
- Enamine Ltd., Winston Churchill street 78, 02094, Kyiv, Ukraine
| | | | - Yuliia Holota
- Enamine Ltd., Winston Churchill street 78, 02094, Kyiv, Ukraine
| | | | - Petro Borysko
- Enamine Ltd., Winston Churchill street 78, 02094, Kyiv, Ukraine
| | | | - Iryna Bodenchuk
- Enamine Ltd., Winston Churchill street 78, 02094, Kyiv, Ukraine
| | - Yuliia Bas
- Taras Shevchenko National University of Kyiv, Chemistry Department, Volodymyrska 64, 01601, Kyiv, Ukraine
| | - Dmytro Dudenko
- Enamine Ltd., Winston Churchill street 78, 02094, Kyiv, Ukraine
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9
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Dibchak D, Snisarenko M, Mishuk A, Shablykin O, Bortnichuk L, Klymenko-Ulianov O, Kheylik Y, Sadkova IV, Rzepa HS, Mykhailiuk PK. General Synthesis of 3-Azabicyclo[3.1.1]heptanes and Evaluation of Their Properties as Saturated Isosteres. Angew Chem Int Ed Engl 2023; 62:e202304246. [PMID: 37232421 DOI: 10.1002/anie.202304246] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 05/24/2023] [Accepted: 05/26/2023] [Indexed: 05/27/2023]
Abstract
A general approach to 3-azabicyclo[3.1.1]heptanes by reduction of spirocyclic oxetanyl nitriles was developed. The mechanism, scope, and scalability of this transformation were studied. The core was incorporated into the structure of the antihistamine drug Rupatidine instead of the pyridine ring, which led to a dramatic improvement in physicochemical properties.
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Affiliation(s)
| | | | - Artem Mishuk
- Enamine Ltd., Chervonotkatska 60, 02094, Kyiv, Ukraine
| | - Oleh Shablykin
- Enamine Ltd., Chervonotkatska 60, 02094, Kyiv, Ukraine
- Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Sciences of Ukraine, Akademika Kukharya, 1, 02094, Kyiv, Ukraine
| | | | | | | | | | - Henry S Rzepa
- Department of Chemistry, Molecular Sciences Research Hub, White City Campus, Imperial College London, 82 Wood Lane, London, W12 0BZ, UK
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10
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Denisenko A, Garbuz P, Voloshchuk NM, Holota Y, Al-Maali G, Borysko P, Mykhailiuk PK. 2-Oxabicyclo[2.1.1]hexanes as saturated bioisosteres of the ortho-substituted phenyl ring. Nat Chem 2023:10.1038/s41557-023-01222-0. [PMID: 37277469 PMCID: PMC10396955 DOI: 10.1038/s41557-023-01222-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 04/25/2023] [Indexed: 06/07/2023]
Abstract
The ortho-substituted phenyl ring is a basic structural element in chemistry. It is found in more than three hundred drugs and agrochemicals. During the past decade, scientists have tried to replace the phenyl ring in bioactive compounds with saturated bioisosteres to obtain novel patentable structures. However, most of the research in this area has been devoted to the replacement of the para-substituted phenyl ring. Here we have developed saturated bioisosteres of the ortho-substituted phenyl ring with improved physicochemical properties: 2-oxabicyclo[2.1.1]hexanes. Crystallographic analysis revealed that these structures and the ortho-substituted phenyl ring indeed have similar geometric properties. Replacement of the phenyl ring in marketed agrochemicals fluxapyroxad (BASF) and boscalid (BASF) with 2-oxabicyclo[2.1.1]hexanes dramatically improved their water solubility, reduced lipophilicity and most importantly retained bioactivity. This work suggests an opportunity for chemists to replace the ortho-substituted phenyl ring in bioactive compounds with saturated bioisosteres in medicinal chemistry and agrochemistry.
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Affiliation(s)
| | | | | | | | - Galeb Al-Maali
- Bienta, Kyiv, Ukraine
- M.G. Kholodny Institute of Botany of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
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11
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Yu IF, Manske JL, Diéguez-Vázquez A, Misale A, Pashenko AE, Mykhailiuk PK, Ryabukhin SV, Volochnyuk DM, Hartwig JF. Catalytic undirected borylation of tertiary C-H bonds in bicyclo[1.1.1]pentanes and bicyclo[2.1.1]hexanes. Nat Chem 2023; 15:685-693. [PMID: 36973434 PMCID: PMC10684141 DOI: 10.1038/s41557-023-01159-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 02/14/2023] [Indexed: 03/29/2023]
Abstract
Catalytic borylations of sp3 C-H bonds occur with high selectivities for primary C-H bonds or secondary C-H bonds that are activated by nearby electron-withdrawing substituents. Catalytic borylation at tertiary C-H bonds has not been observed. Here we describe a broadly applicable method for the synthesis of boron-substituted bicyclo[1.1.1]pentanes and (hetero)bicyclo[2.1.1]hexanes by an iridium-catalysed borylation of the bridgehead tertiary C-H bond. This reaction is highly selective for the formation of bridgehead boronic esters and is compatible with a broad range of functional groups (>35 examples). The method is applicable to the late-stage modification of pharmaceuticals containing this substructure and the synthesis of novel bicyclic building blocks. Kinetic and computational studies suggest that C-H bond cleavage occurs with a modest barrier and that the turnover-limiting step of this reaction is an isomerization that occurs prior to reductive elimination that forms the C-B bond.
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Affiliation(s)
- Isaac F Yu
- Department of Chemistry, University of California, Berkeley, CA, USA
| | - Jenna L Manske
- Department of Chemistry, University of California, Berkeley, CA, USA
| | | | | | - Alexander E Pashenko
- The Institute of High Technologies, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
- Enamine Ltd, Kyiv, Ukraine
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Pavel K Mykhailiuk
- The Institute of High Technologies, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
- Enamine Ltd, Kyiv, Ukraine
| | - Sergey V Ryabukhin
- The Institute of High Technologies, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
- Enamine Ltd, Kyiv, Ukraine
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Dmitriy M Volochnyuk
- The Institute of High Technologies, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine.
- Enamine Ltd, Kyiv, Ukraine.
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine.
| | - John F Hartwig
- Department of Chemistry, University of California, Berkeley, CA, USA.
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12
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Ahunovych V, Klipkov AA, Bugera M, Tarasenko K, Trofymchuk S, Stanko O, Boretskyi A, Zheludenko M, Sadkova IV, Mykhailiuk PK. General and Scalable Approach to Trifluoromethyl-Substituted Cyclopropanes. J Org Chem 2023; 88:3859-3870. [PMID: 36827631 DOI: 10.1021/acs.joc.3c00123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
CF3-cyclopropanes with aliphatic, aromatic, and even heteroaromatic substituents were prepared on a multigram scale by deoxyfluorination of cyclopropane carboxylic acids or their salts with sulfur tetrafluoride. For labile α-pyridine acetic acids, only the use of their potassium salts allowed to obtain the needed products. Derivatization of CF3-cyclopropanes into building blocks ready for direct use in medicinal chemistry was performed.
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Affiliation(s)
- Volodymyr Ahunovych
- Enamine Ltd., Chervonotkatska 60, 02094 Kyiv, Ukraine.,V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Sciences of Ukraine, Akademika Kukharya 1, 02094 Kyiv, Ukraine
| | - Anton A Klipkov
- Enamine Ltd., Chervonotkatska 60, 02094 Kyiv, Ukraine.,V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Sciences of Ukraine, Akademika Kukharya 1, 02094 Kyiv, Ukraine
| | - Maksym Bugera
- Enamine Ltd., Chervonotkatska 60, 02094 Kyiv, Ukraine.,V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Sciences of Ukraine, Akademika Kukharya 1, 02094 Kyiv, Ukraine
| | - Karen Tarasenko
- Enamine Ltd., Chervonotkatska 60, 02094 Kyiv, Ukraine.,V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Sciences of Ukraine, Akademika Kukharya 1, 02094 Kyiv, Ukraine
| | - Serhii Trofymchuk
- Enamine Ltd., Chervonotkatska 60, 02094 Kyiv, Ukraine.,Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Akademika Kukharya 5, 02094 Kyiv, Ukraine
| | - Oleh Stanko
- Enamine Ltd., Chervonotkatska 60, 02094 Kyiv, Ukraine
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13
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Pickford HD, Ripenko V, McNamee RE, Holovchuk S, Thompson AL, Smith RC, Mykhailiuk PK, Anderson EA. Rapid and Scalable Halosulfonylation of Strain-Release Reagents. Angew Chem Int Ed Engl 2023; 62:e202213508. [PMID: 36226350 PMCID: PMC10100009 DOI: 10.1002/anie.202213508] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [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: 09/14/2022] [Indexed: 11/12/2022]
Abstract
Sulfonylated aromatics are commonplace motifs in drugs and agrochemicals. However, methods for the direct synthesis of sulfonylated non-classical arene bioisosteres, which could improve the physicochemical properties of drug and agrochemical candidates, are limited. Here we report a solution to this challenge: a one-pot halosulfonylation of [1.1.1]propellane, [3.1.1]propellane and bicyclo[1.1.0]butanes that proceeds under practical, scalable and mild conditions. The sulfonyl halides used in this chemistry feature aryl, heteroaryl and alkyl substituents, and are conveniently generated in situ from readily available sulfinate salts and halogen atom sources. This methodology enables the synthesis of an array of pharmaceutically and agrochemically relevant halogen/sulfonyl-substituted bioisosteres and cyclobutanes, on up to multidecagram scale.
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Affiliation(s)
- Helena D Pickford
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Vasyl Ripenko
- Enamine Ltd, Chervonotkatska 78, 02094, Kyiv, Ukraine.,Chemistry Department, Taras Shevchenko National University of Kyiv, Volodymyrska 64, 01601, Kyiv, Ukraine
| | - Ryan E McNamee
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | | | - Amber L Thompson
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Russell C Smith
- AbbVie Drug Discovery Science & Technology (DDST), 1 North Waukegan Road, North Chicago, IL 60064, USA
| | | | - Edward A Anderson
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
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14
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Kornii Y, Shablykin O, Tarasiuk T, Stepaniuk O, Matvienko V, Aloshyn D, Zahorodniuk N, Sadkova IV, Mykhailiuk PK. Fluorinated Aliphatic Diazirines: Preparation, Characterization, and Model Photolabeling Studies. J Org Chem 2023; 88:1-17. [PMID: 36399052 DOI: 10.1021/acs.joc.2c02262] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The previously unknown difluoromethyl diazirines and the previously neglected trifluoromethyl-aliphatic diazirines were synthesized and characterized. Model photolabeling experiments and biological studies showed that these compounds could indeed be used as photoaffinity labels.
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Affiliation(s)
- Yurii Kornii
- Enamine Ltd., Oleksandra Matrosova Street 23, Kyiv 01103, Ukraine.,V.P.Kukhar Institute of Bioorganic Chemistry and Petrochemistry NAS of Ukraine, Kyiv 02094, Ukraine
| | - Oleg Shablykin
- Enamine Ltd., Oleksandra Matrosova Street 23, Kyiv 01103, Ukraine.,V.P.Kukhar Institute of Bioorganic Chemistry and Petrochemistry NAS of Ukraine, Kyiv 02094, Ukraine
| | - Taras Tarasiuk
- Enamine Ltd., Oleksandra Matrosova Street 23, Kyiv 01103, Ukraine
| | | | | | - Danylo Aloshyn
- Enamine Ltd., Oleksandra Matrosova Street 23, Kyiv 01103, Ukraine.,Bienta, Chervonotkatska 78, Kyiv 02094, Ukraine
| | - Nataliia Zahorodniuk
- Enamine Ltd., Oleksandra Matrosova Street 23, Kyiv 01103, Ukraine.,Bienta, Chervonotkatska 78, Kyiv 02094, Ukraine
| | - Iryna V Sadkova
- Enamine Ltd., Oleksandra Matrosova Street 23, Kyiv 01103, Ukraine
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15
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Pickford HD, Ripenko V, McNamee RE, Holovchuk S, Thompson AL, Smith RC, Mykhailiuk PK, Anderson EA. Rapid and scalable halosulfonylation of strain‐release reagents. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202213508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Helena D. Pickford
- University of Oxford Department of Chemistry Chemistry Chemistry Research Laboratory12 Mansfield Road OX1 3TA Oxford UNITED KINGDOM
| | | | - Ryan E. McNamee
- University of Oxford Department of Chemistry Chemistry Chemistry Research Laboratory12 Mansfield Road Oxford UNITED KINGDOM
| | | | - Amber L. Thompson
- University of Oxford Department of Chemistry Chemistry Chemistry Research Laboratory12 Mansfield Road OX1 3TA Oxford UNITED KINGDOM
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16
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Palkowitz MD, Laudadio G, Kolb S, Choi J, Oderinde MS, Ewing TEH, Bolduc PN, Chen T, Zhang H, Cheng PTW, Zhang B, Mandler MD, Blasczak VD, Richter JM, Collins MR, Schioldager RL, Bravo M, Dhar TGM, Vokits B, Zhu Y, Echeverria PG, Poss MA, Shaw SA, Clementson S, Petersen NN, Mykhailiuk PK, Baran PS. Overcoming Limitations in Decarboxylative Arylation via Ag-Ni Electrocatalysis. J Am Chem Soc 2022; 144:17709-17720. [PMID: 36106767 PMCID: PMC9805175 DOI: 10.1021/jacs.2c08006] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A useful protocol for achieving decarboxylative cross-coupling (DCC) of redox-active esters (RAE, isolated or generated in situ) and halo(hetero)arenes is reported. This pragmatically focused study employs a unique Ag-Ni electrocatalytic platform to overcome numerous limitations that have plagued this strategically powerful transformation. In its optimized form, coupling partners can be combined in a surprisingly simple way: open to the air, using technical-grade solvents, an inexpensive ligand and Ni source, and substoichiometric AgNO3, proceeding at room temperature with a simple commercial potentiostat. Most importantly, all of the results are placed into context by benchmarking with state-of-the-art methods. Applications are presented that simplify synthesis and rapidly enable access to challenging chemical space. Finally, adaptation to multiple scale regimes, ranging from parallel milligram-based synthesis to decagram recirculating flow is presented.
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Affiliation(s)
- Maximilian D Palkowitz
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Gabriele Laudadio
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Simon Kolb
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Jin Choi
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Martins S Oderinde
- Bristol Myers Squibb Research and Development, P.O. Box 4000, Princeton, New Jersey 08534, United States
| | - Tamara El-Hayek Ewing
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Philippe N Bolduc
- Biogen Inc., 225 Binney Street, Cambridge, Massachusetts 02142, United States
| | - TeYu Chen
- Biogen Inc., 225 Binney Street, Cambridge, Massachusetts 02142, United States
| | - Hao Zhang
- Bristol Myers Squibb Research and Development, P.O. Box 4000, Princeton, New Jersey 08534, United States
| | - Peter T W Cheng
- Bristol Myers Squibb Research and Development, P.O. Box 4000, Princeton, New Jersey 08534, United States
| | - Benxiang Zhang
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Michael D Mandler
- Bristol Myers Squibb Research and Development, P.O. Box 4000, Princeton, New Jersey 08534, United States
| | - Vanna D Blasczak
- Biogen Inc., 225 Binney Street, Cambridge, Massachusetts 02142, United States
| | - Jeremy M Richter
- Bristol Myers Squibb Research and Development, P.O. Box 4000, Princeton, New Jersey 08534, United States
| | - Michael R Collins
- Oncology Medicinal Chemistry Department, Pfizer Pharmaceuticals, 10770 Science Center Drive, San Diego, California 92121, United States
| | - Ryan L Schioldager
- Oncology Medicinal Chemistry Department, Pfizer Pharmaceuticals, 10770 Science Center Drive, San Diego, California 92121, United States
| | - Martin Bravo
- Oncology Medicinal Chemistry Department, Pfizer Pharmaceuticals, 10770 Science Center Drive, San Diego, California 92121, United States
| | - T G Murali Dhar
- Bristol Myers Squibb Research and Development, P.O. Box 4000, Princeton, New Jersey 08534, United States
| | - Benjamin Vokits
- Bristol Myers Squibb Research and Development, P.O. Box 4000, Princeton, New Jersey 08534, United States
| | - Yeheng Zhu
- Bristol Myers Squibb Research and Development, P.O. Box 4000, Princeton, New Jersey 08534, United States
| | | | - Michael A Poss
- Bristol Myers Squibb Research and Development, P.O. Box 4000, Princeton, New Jersey 08534, United States
| | - Scott A Shaw
- Bristol Myers Squibb Research and Development, P.O. Box 4000, Princeton, New Jersey 08534, United States
| | | | | | | | - Phil S Baran
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
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17
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Abstract
After more than 20 years of trials, a practical scalable approach to fluoro‐substituted bicyclo[1.1.1]pentanes (F‐BCPs) has been developed. The physicochemical properties of the F‐BCPs have been studied, and the core was incorporated into the structure of the anti‐inflammatory drug Flurbiprofen in place of the fluorophenyl ring.
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Affiliation(s)
- Roman Bychek
- Enamine Ltd., Chervonotkatska 60, 02094, Kyiv, Ukraine
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18
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Abstract
![]()
Many
oxetane-carboxylic
acids were found to be unstable. They easily
isomerized into new (hetero)cyclic lactones while being stored at
room temperature or slightly heated. Chemists should keep in mind
the high instability of these molecules, as this could dramatically
affect the reaction yields and lead to negative results (especially
in those reactions that require heating).
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Affiliation(s)
- Bohdan Chalyk
- Enamine Ltd., Chervonotkatska 78, 02094 Kyiv, Ukraine.,Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Murmanska Strasse 5, 02094 Kyiv, Ukraine
| | | | | | - Tymofii V Rudenko
- Enamine Ltd., Chervonotkatska 78, 02094 Kyiv, Ukraine.,Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Murmanska Strasse 5, 02094 Kyiv, Ukraine
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19
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Bychek R, Mykhailiuk PK. A Practical and Scalable Approach to Fluoro‐Substituted Bicyclo[1.1.1]pentanes. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Roman Bychek
- Enamine Ltd. Chervonotkatska 60 02094 Kyiv Ukraine
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20
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Abstract
Fluorinated prolines play an important role in peptide studies, protein engineering, medicinal chemistry, drug discovery, and agrochemistry. Since the first synthesis of 4-fluoroprolines by Gottlieb and Witkop in 1965, their popularity started to grow exponentially. For example, during the past two decades, all isomeric trifluoromethyl-substituted prolines have been synthesized. In this Perspective, chemical properties and applications of fluorinated prolines are discussed. Synthetic approaches to all known fluorine-containing prolines are also discussed and analyzed. This analysis unexpectedly revealed an unsolved problem: in strict contrast to fluoro- and trifluoromethyl-substituted prolines, the corresponding analogues with fluoromethyl and difluoromethyl groups are mostly unknown. At the end of the paper, structures of several interesting, yet unknown, fluorinated prolines are disclosed─a good opportunity for chemists to make them.
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21
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Noonikara-Poyil A, Muñoz-Castro A, Boretskyi A, Mykhailiuk PK, Dias HVR. When SF 5 outplays CF 3: effects of pentafluorosulfanyl decorated scorpionates on copper. Chem Sci 2021; 12:14618-14623. [PMID: 34881014 PMCID: PMC8580053 DOI: 10.1039/d1sc04846e] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 10/15/2021] [Indexed: 01/01/2023] Open
Abstract
Polyfluorinated, electron-withdrawing, and sterically demanding supporting ligands are of significant value in chemistry. Here we report the assembly and use of a bis(pyrazolyl)borate, [Ph2B(3-(SF5)Pz)2]- that combines all such features, and involves underutilized pentafluorosulfanyl substituents. The ethylene and carbonyl chemistry of copper(i) supported by [Ph2B(3-(SF5)Pz)2]-, a comparison to the trifluoromethylated counterparts involving [Ph2B(3-(CF3)Pz)2]-, as well as copper catalyzed cyclopropanation of styrene with ethyl diazoacetate and CF3CHN2 are presented. The results from cyclopropanation show that SF5 groups dramatically improved the yields and stereoselectivity compared to the CF3.
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Affiliation(s)
- Anurag Noonikara-Poyil
- Department of Chemistry and Biochemistry, The University of Texas at Arlington Arlington TX 76019 USA
| | - Alvaro Muñoz-Castro
- Grupo de Química Inorgánica y Materiales Moleculares, Facultad de Ingeniería, Universidad Autonoma de Chile El Llano Subercaseaux 2801 Santiago Chile
| | | | - Pavel K Mykhailiuk
- Enamine Ltd Chervonotkatska 78 02094 Kyiv Ukraine
- Chemistry Department, Taras Shevchenko National University of Kyiv Volodymyrska 64 01601 Kyiv Ukraine
| | - H V Rasika Dias
- Department of Chemistry and Biochemistry, The University of Texas at Arlington Arlington TX 76019 USA
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22
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Ripenko V, Vysochyn D, Klymov I, Zhersh S, Mykhailiuk PK. Large-Scale Synthesis and Modifications of Bicyclo[1.1.1]pentane-1,3-dicarboxylic Acid (BCP). J Org Chem 2021; 86:14061-14068. [PMID: 34166594 PMCID: PMC8524415 DOI: 10.1021/acs.joc.1c00977] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
![]()
In flow photochemical addition of propellane to
diacetyl allowed construction of the bicyclo[1.1.1]pentane (BCP) core
in a 1 kg scale within 1 day. Haloform reaction of the formed diketone
in batch afforded bicyclo[1.1.1]pentane-1,3-dicarboxylic acid in a
multigram amount. Representative gram scale transformations of the
diacid were also performed to obtain various BCP-containing building
blocks—alcohols, acids, amines, trifluoroborates, amino acids, etc.—for medicinal chemistry.
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Affiliation(s)
- Vasyl Ripenko
- Enamine Ltd., Chervonotkatska 78, 02094 Kyiv, Ukraine
| | | | - Ivan Klymov
- Enamine Ltd., Chervonotkatska 78, 02094 Kyiv, Ukraine
| | - Serhii Zhersh
- Enamine Ltd., Chervonotkatska 78, 02094 Kyiv, Ukraine
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23
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Savych VI, Mykhalchuk VL, Melnychuk PV, Isakov AO, Savchuk T, Timoshenko VM, Siry SA, Pavlenko SO, Kovalenko DV, Hryshchuk OV, Reznik VA, Chalyk BA, Yarmolchuk VS, Rusanov EB, Mykhailiuk PK. Bicyclic Pyrrolidines for Medicinal Chemistry via [3 + 2]-Cycloaddition. J Org Chem 2021; 86:13289-13309. [PMID: 34428062 DOI: 10.1021/acs.joc.1c01327] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A general approach to bicyclic fused pyrrolidines via [3 + 2]-cycloaddition between nonstabilized azomethyne ylide and endocyclic electron-deficient alkenes was elaborated. "Push-pull" alkenes and CF3-alkenes did not react with the azomethyne ylide under the previously reported conditions, and we developed a superior protocol (LiF, 140 °C, no solvent). Among obtained products were medchem-relevant bicyclic sulfones, monofluoro-, difluoro-, and trifluoromethyl-substituted pyrrolidines. This approach not only allowed preparation of novel molecules but also significantly simplified synthesis of the existing ones (e.g., sofinicline).
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Affiliation(s)
- Vladimir I Savych
- Enamine Ltd.; Chervonotkatska 78, 02094 Kyiv, Ukraine, www.enamine.net
| | | | - Pavlo V Melnychuk
- Enamine Ltd.; Chervonotkatska 78, 02094 Kyiv, Ukraine, www.enamine.net
| | - Andrii O Isakov
- Enamine Ltd.; Chervonotkatska 78, 02094 Kyiv, Ukraine, www.enamine.net
| | - Taras Savchuk
- Enamine Ltd.; Chervonotkatska 78, 02094 Kyiv, Ukraine, www.enamine.net
| | - Vadim M Timoshenko
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Murmanska St. 5, 02094 Kyiv, Ukraine
| | - Sergiy A Siry
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Murmanska St. 5, 02094 Kyiv, Ukraine
| | - Sergiy O Pavlenko
- Enamine Ltd.; Chervonotkatska 78, 02094 Kyiv, Ukraine, www.enamine.net
| | | | | | - Vitalii A Reznik
- Enamine Ltd.; Chervonotkatska 78, 02094 Kyiv, Ukraine, www.enamine.net
| | - Bohdan A Chalyk
- Enamine Ltd.; Chervonotkatska 78, 02094 Kyiv, Ukraine, www.enamine.net.,Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Murmanska St. 5, 02094 Kyiv, Ukraine
| | | | - Eduard B Rusanov
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Murmanska St. 5, 02094 Kyiv, Ukraine
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24
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Stambirskyi MV, Kostiuk T, Sirobaba SI, Rudnichenko A, Titikaiev DL, Dmytriv YV, Kuznietsova H, Pishel I, Borysko P, Mykhailiuk PK. Phosphine Oxides (-POMe 2) for Medicinal Chemistry: Synthesis, Properties, and Applications. J Org Chem 2021; 86:12783-12801. [PMID: 34468144 DOI: 10.1021/acs.joc.1c01413] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A general practical approach to hetero(aromatic) and aliphatic P(O)Me2-substituted derivatives is elaborated. The key synthetic step was a [Pd]-mediated C-P coupling of (hetero)aryl bromides/iodides with HP(O)Me2. The P(O)Me2 substituent was shown to dramatically increase solubility and decrease lipophilicity of organic compounds. This tactic was used to improve the solubility of the antihypertensive drug prazosin without affecting its biological profile.
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Affiliation(s)
| | | | | | | | | | - Yurii V Dmytriv
- Enamine Ltd., Chervonotkatska 78, Kyiv 02094, Ukraine.,Department of Chemical Technology, National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Prosp. Peremohy 37, Kyiv 03056, Ukraine
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25
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Trofymchuk S, Bugera M, Klipkov AA, Ahunovych V, Razhyk B, Semenov S, Boretskyi A, Tarasenko K, Mykhailiuk PK. Scalable Approach to Fluorinated Heterocycles with Sulfur Tetrafluoride (SF 4). J Org Chem 2021; 86:12181-12198. [PMID: 34424702 DOI: 10.1021/acs.joc.1c01518] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A general approach to fluorinated (hetero)aromatic derivatives is elaborated. The key reaction is a deoxofluorination of substituted acetophenones with sulfur tetrafluoride (SF4). In contrast to previous deoxofluorination methods, this transformation is fast, scalable (up to 70 g), and high-yielding. More than 100 novel or previously hardly accessible fluorinated heterocycles, interesting for medicinal chemistry and agrochemistry, were synthesized.
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Affiliation(s)
- Serhii Trofymchuk
- Enamine Ltd., Chervonotkatska 78, 02094 Kyiv, Ukraine.,Institute of Organic Chemistry, NAS of Ukraine, Murmanska 5, 02094 Kyiv, Ukraine
| | - Maksym Bugera
- Enamine Ltd., Chervonotkatska 78, 02094 Kyiv, Ukraine.,V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry, NAS of Ukraine, Murmanska 1, 02094 Kyiv, Ukraine
| | - Anton A Klipkov
- Enamine Ltd., Chervonotkatska 78, 02094 Kyiv, Ukraine.,V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry, NAS of Ukraine, Murmanska 1, 02094 Kyiv, Ukraine
| | - Volodymyr Ahunovych
- Enamine Ltd., Chervonotkatska 78, 02094 Kyiv, Ukraine.,V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry, NAS of Ukraine, Murmanska 1, 02094 Kyiv, Ukraine
| | - Bohdan Razhyk
- Enamine Ltd., Chervonotkatska 78, 02094 Kyiv, Ukraine
| | | | | | - Karen Tarasenko
- V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry, NAS of Ukraine, Murmanska 1, 02094 Kyiv, Ukraine.,Chemspace LLC, 85 Chervonotkatska Street, Suite 1, 02094 Kyiv, Ukraine
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26
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Fominova K, Diachuk T, Granat D, Savchuk T, Vilchynskyi V, Svitlychnyi O, Meliantsev V, Kovalchuk I, Litskan E, Levterov VV, Badlo VR, Vaskevych RI, Vaskevych AI, Bolbut AV, Semeno VV, Iminov R, Shvydenko K, Kuznetsova AS, Dmytriv YV, Vysochyn D, Ripenko V, Tolmachev AA, Pavlova O, Kuznietsova H, Pishel I, Borysko P, Mykhailiuk PK. Oxa-spirocycles: synthesis, properties and applications. Chem Sci 2021; 12:11294-11305. [PMID: 34667540 PMCID: PMC8447932 DOI: 10.1039/d1sc03615g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 07/20/2021] [Indexed: 12/27/2022] Open
Abstract
A general approach to a new generation of spirocyclic molecules – oxa-spirocycles – was developed. The key synthetic step was iodocyclization. More than 150 oxa-spirocyclic compounds were prepared. Incorporation of an oxygen atom into the spirocyclic unit dramatically improved water solubility (by up to 40 times) and lowered lipophilicity. More potent oxa-spirocyclic analogues of antihypertensive drug terazosin were synthesized and studied in vivo. A general practical approach to a new generation of spirocyclic molecules – oxa-spirocycles – is developed.![]()
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Affiliation(s)
- Kateryna Fominova
- Enamine Ltd Chervonotkatska 78 02094 Kyiv Ukraine http://www.enamine.net http://www.mykhailiukchem.org
| | - Taras Diachuk
- Enamine Ltd Chervonotkatska 78 02094 Kyiv Ukraine http://www.enamine.net http://www.mykhailiukchem.org
| | - Dmitry Granat
- Enamine Ltd Chervonotkatska 78 02094 Kyiv Ukraine http://www.enamine.net http://www.mykhailiukchem.org
| | - Taras Savchuk
- Enamine Ltd Chervonotkatska 78 02094 Kyiv Ukraine http://www.enamine.net http://www.mykhailiukchem.org
| | - Vladyslav Vilchynskyi
- Enamine Ltd Chervonotkatska 78 02094 Kyiv Ukraine http://www.enamine.net http://www.mykhailiukchem.org
| | - Oleksiy Svitlychnyi
- Enamine Ltd Chervonotkatska 78 02094 Kyiv Ukraine http://www.enamine.net http://www.mykhailiukchem.org
| | - Vladyslav Meliantsev
- Enamine Ltd Chervonotkatska 78 02094 Kyiv Ukraine http://www.enamine.net http://www.mykhailiukchem.org
| | - Igor Kovalchuk
- Enamine Ltd Chervonotkatska 78 02094 Kyiv Ukraine http://www.enamine.net http://www.mykhailiukchem.org
| | - Eduard Litskan
- Enamine Ltd Chervonotkatska 78 02094 Kyiv Ukraine http://www.enamine.net http://www.mykhailiukchem.org
| | - Vadym V Levterov
- Enamine Ltd Chervonotkatska 78 02094 Kyiv Ukraine http://www.enamine.net http://www.mykhailiukchem.org
| | - Valentyn R Badlo
- Enamine Ltd Chervonotkatska 78 02094 Kyiv Ukraine http://www.enamine.net http://www.mykhailiukchem.org
| | - Ruslan I Vaskevych
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine Murmanska St. 5 02094 Kyiv Ukraine
| | - Alla I Vaskevych
- National Technical University of Ukraine, Igor Sikorsky Kiev Polytechnic Institute Prosp. Peremohy 37 03056 Kyiv Ukraine
| | - Andrii V Bolbut
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine Murmanska St. 5 02094 Kyiv Ukraine
| | - Volodymyr V Semeno
- Enamine Ltd Chervonotkatska 78 02094 Kyiv Ukraine http://www.enamine.net http://www.mykhailiukchem.org
| | - Rustam Iminov
- Enamine Ltd Chervonotkatska 78 02094 Kyiv Ukraine http://www.enamine.net http://www.mykhailiukchem.org
| | - Kostiantyn Shvydenko
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine Murmanska St. 5 02094 Kyiv Ukraine
| | | | - Yurii V Dmytriv
- Enamine Ltd Chervonotkatska 78 02094 Kyiv Ukraine http://www.enamine.net http://www.mykhailiukchem.org.,National Technical University of Ukraine, Igor Sikorsky Kiev Polytechnic Institute Prosp. Peremohy 37 03056 Kyiv Ukraine
| | - Daniil Vysochyn
- Enamine Ltd Chervonotkatska 78 02094 Kyiv Ukraine http://www.enamine.net http://www.mykhailiukchem.org
| | - Vasyl Ripenko
- Enamine Ltd Chervonotkatska 78 02094 Kyiv Ukraine http://www.enamine.net http://www.mykhailiukchem.org
| | - Andrei A Tolmachev
- Enamine Ltd Chervonotkatska 78 02094 Kyiv Ukraine http://www.enamine.net http://www.mykhailiukchem.org
| | | | | | - Iryna Pishel
- Bienta Chervonotkatska 78 02094 Kyiv Ukraine http://www.bienta.net
| | - Petro Borysko
- Bienta Chervonotkatska 78 02094 Kyiv Ukraine http://www.bienta.net
| | - Pavel K Mykhailiuk
- Enamine Ltd Chervonotkatska 78 02094 Kyiv Ukraine http://www.enamine.net http://www.mykhailiukchem.org
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27
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Shcherbakova V, Dibchak D, Snisarenko M, Skalenko Y, Denisenko AV, Kuznetsova AS, Mykhailiuk PK. Bicyclic Piperidines via [2 + 2] Photocycloaddition. J Org Chem 2021; 86:2200-2209. [PMID: 33211487 DOI: 10.1021/acs.joc.0c02355] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A synthetic strategy to fused bicyclic piperidines-building blocks for medicinal chemistry-is developed. The key step was an intramolecular [2 + 2]-photocyclization. The photochemical step was performed on a gram scale. Crystallographic analysis of the obtained compounds revealed that they occupy a novel chemical space and can be considered as elongated analogues of 3-substituted piperidines.
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Affiliation(s)
| | | | | | - Yevhen Skalenko
- Enamine Ltd., Chervonotkatska 78, 02094 Kyiv, Ukraine.,V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry NAS of Ukraine, Murmanska 1, 02094 Kyiv, Ukraine
| | | | | | - Pavel K Mykhailiuk
- Enamine Ltd., Chervonotkatska 78, 02094 Kyiv, Ukraine.,Taras Shevchenko National University of Kyiv, Volodymyrska 64, 01601 Kyiv, Ukraine
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28
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Affiliation(s)
- Pavel K. Mykhailiuk
- Enamine Ltd., Chervonotkatska 78, 02094 Kyiv, Ukraine
- Chemistry Department, Taras Shevchenko National University of Kyiv, Volodymyrska 64, 01601 Kyiv, Ukraine
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29
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Affiliation(s)
| | - Pavel Garbuz
- Enamine Ltd Chervonotkatska 78 02094 Kyiv Ukraine
| | - Svetlana V. Shishkina
- “Institute for Single Crystals” National Academy of Science of Ukraine Lenina Ave. 60 61001 Kharkiv Ukraine
| | - Nataliya M. Voloshchuk
- National University of Life and Environmental Science of Ukraine Heroiv Oborony 15 03041 Kyiv Ukraine
| | - Pavel K. Mykhailiuk
- Enamine Ltd Chervonotkatska 78 02094 Kyiv Ukraine
- Taras Shevchenko National University of Kyiv Chemistry Department Volodymyrska 64 01601 Kyiv Ukraine
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30
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Affiliation(s)
- Pavel K. Mykhailiuk
- Enamine Ltd., Chervonotkatska 78, 02094 Kyiv, Ukraine
- Chemistry Department, Taras Shevchenko National University of Kyiv, Volodymyrska 64, 01601 Kyiv, Ukraine
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31
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Denisenko A, Garbuz P, Shishkina SV, Voloshchuk NM, Mykhailiuk PK. Saturated Bioisosteres of ortho-Substituted Benzenes. Angew Chem Int Ed Engl 2020; 59:20515-20521. [PMID: 32662201 DOI: 10.1002/anie.202004183] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [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: 03/22/2020] [Revised: 04/28/2020] [Indexed: 12/22/2022]
Abstract
Saturated bioisosteres of ortho-disubstituted benzenes (bicyclo[2.1.1]hexanes) were synthesized, characterized and validated. These cores were incorporated into the bioactive compounds Valsartan, Boskalid and Fluxapyroxad instead of the benzene ring. The saturated analogues showed a similar level of antifungal activity compared to that of Boskalid and Fluxapyroxad.
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Affiliation(s)
| | - Pavel Garbuz
- Enamine Ltd, Chervonotkatska 78, 02094, Kyiv, Ukraine
| | - Svetlana V Shishkina
- "Institute for Single Crystals", National Academy of Science of Ukraine, Lenina Ave. 60, 61001, Kharkiv, Ukraine
| | - Nataliya M Voloshchuk
- National University of Life and Environmental Science of Ukraine, Heroiv Oborony 15, 03041, Kyiv, Ukraine
| | - Pavel K Mykhailiuk
- Enamine Ltd, Chervonotkatska 78, 02094, Kyiv, Ukraine.,Taras Shevchenko National University of Kyiv, Chemistry Department, Volodymyrska 64, 01601, Kyiv, Ukraine
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32
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Levterov VV, Panasyuk Y, Pivnytska VO, Mykhailiuk PK. Innentitelbild: Water‐Soluble Non‐Classical Benzene Mimetics (Angew. Chem. 18/2020). Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202004146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | | | | | - Pavel K. Mykhailiuk
- Enamine Ltd. Chervonotkatska 78 02094 Kyiv Ukraine
- Taras Shevchenko National University of Kyiv Chemistry Department Volodymyrska 64 01601 Kyiv Ukraine
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33
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Affiliation(s)
| | | | | | - Pavel K. Mykhailiuk
- Enamine Ltd. Chervonotkatska 78 02094 Kyiv Ukraine
- Taras Shevchenko National University of Kyiv Chemistry Department Volodymyrska 64 01601 Kyiv Ukraine
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34
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Levterov VV, Panasyuk Y, Pivnytska VO, Mykhailiuk PK. Water-Soluble Non-Classical Benzene Mimetics. Angew Chem Int Ed Engl 2020; 59:7161-7167. [PMID: 32060990 DOI: 10.1002/anie.202000548] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [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: 01/12/2020] [Revised: 02/13/2020] [Indexed: 12/20/2022]
Abstract
A new generation of saturated benzene mimetics, 2-oxabicyclo[2.1.1]hexanes, was developed. These compounds were designed as analogues of bicyclo[1.1.1]pentane with an improved water solubility. Crystallographic analysis of 2-oxabicyclo[2.1.1]hexanes revealed that they occupy a novel chemical space, but, at the same time, resemble the motif of meta-disubstituted benzenes.
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Affiliation(s)
| | | | | | - Pavel K Mykhailiuk
- Enamine Ltd., Chervonotkatska 78, 02094, Kyiv, Ukraine.,Taras Shevchenko National University of Kyiv, Chemistry Department, Volodymyrska 64, 01601, Kyiv, Ukraine
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35
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Trofymchuk S, Bugera MY, Klipkov AA, Razhyk B, Semenov S, Tarasenko K, Starova VS, Zaporozhets OA, Tananaiko OY, Alekseenko AN, Pustovit Y, Kiriakov O, Gerus II, Tolmachev AA, Mykhailiuk PK. Deoxofluorination of (Hetero)aromatic Acids. J Org Chem 2020; 85:3110-3124. [PMID: 31928000 DOI: 10.1021/acs.joc.9b03011] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Diverse trifluoromethyl-substituted compounds were synthesized by deoxofluorination of cinnamic and (hetero)aromatic carboxylic acids with sulfur tetrafluoride. The obtained products were used as starting materials in the preparation of novel fluorinated amino acids, anilines, and aliphatic amines - valuable building blocks for medicinal chemistry and agrochemistry.
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Affiliation(s)
| | - Maksym Ya Bugera
- Enamine Ltd., Chervonotkatska 78, Kyiv 02094, Ukraine.,V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry NAS of Ukraine, Murmanskaya 1, Kyiv 02094, Ukraine
| | - Anton A Klipkov
- Enamine Ltd., Chervonotkatska 78, Kyiv 02094, Ukraine.,V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry NAS of Ukraine, Murmanskaya 1, Kyiv 02094, Ukraine
| | - Bohdan Razhyk
- Enamine Ltd., Chervonotkatska 78, Kyiv 02094, Ukraine
| | | | - Karen Tarasenko
- V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry NAS of Ukraine, Murmanskaya 1, Kyiv 02094, Ukraine.,UkrOrgSyntez Ltd. (UORSY), 29 Schorsa Street, Kyiv 01133, Ukraine
| | - Viktoriia S Starova
- Chemistry Department, Taras Shevchenko National University of Kyiv, Volodymyrska 64, Kyiv 01601, Ukraine
| | - Olga A Zaporozhets
- Chemistry Department, Taras Shevchenko National University of Kyiv, Volodymyrska 64, Kyiv 01601, Ukraine
| | - Oksana Yu Tananaiko
- Chemistry Department, Taras Shevchenko National University of Kyiv, Volodymyrska 64, Kyiv 01601, Ukraine
| | | | - Yurii Pustovit
- Institute of Organic Chemistry NAS of Ukraine, Murmanskaya 5, Kyiv 02094, Ukraine
| | | | - Igor I Gerus
- V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry NAS of Ukraine, Murmanskaya 1, Kyiv 02094, Ukraine
| | - Andrei A Tolmachev
- Enamine Ltd., Chervonotkatska 78, Kyiv 02094, Ukraine.,Chemistry Department, Taras Shevchenko National University of Kyiv, Volodymyrska 64, Kyiv 01601, Ukraine
| | - Pavel K Mykhailiuk
- Enamine Ltd., Chervonotkatska 78, Kyiv 02094, Ukraine.,Chemistry Department, Taras Shevchenko National University of Kyiv, Volodymyrska 64, Kyiv 01601, Ukraine
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36
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Mykhailiuk PK, Koenigs RM. Frontispiece: Diazoacetonitrile (N
2
CHCN): A Long Forgotten but Valuable Reagent for Organic Synthesis. Chemistry 2020. [DOI: 10.1002/chem.202080164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Pavel K. Mykhailiuk
- Enamine Ltd. Chervonotkatska 78 02094 Kyiv Ukraine
- Chemistry Department Taras Shevchenko National University of Kyiv Volodymyrska 64 01601 Kyiv Ukraine
| | - Rene M. Koenigs
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Germany
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37
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Bugera M, Trofymchuk S, Tarasenko K, Zaporozhets O, Pustovit Y, Mykhailiuk PK. Deoxofluorination of Aliphatic Carboxylic Acids: A Route to Trifluoromethyl-Substituted Derivatives. J Org Chem 2019; 84:16105-16115. [PMID: 31714081 DOI: 10.1021/acs.joc.9b02596] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A practical method for the synthesis of functionalized aliphatic trifluoromethyl-substituted derivatives from aliphatic acids is developed. The transformation proceeds with sulfur tetrafluoride in the presence of water as a key additive. Compared to previous methods, the reaction gives products with full retention of stereo- and absolute configuration of chiral centers.
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Affiliation(s)
- Maksym Bugera
- Enamine Limited , Chervonotkatska 78 , 02094 Kyiv , Ukraine.,V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry of the National Academy of Sciences of Ukraine , Murmanska 1 , 02094 Kyiv , Ukraine
| | - Serhii Trofymchuk
- Enamine Limited , Chervonotkatska 78 , 02094 Kyiv , Ukraine.,Institute of Organic Chemistry NAS of Ukraine , Murmanskaya 5 , 02094 Kyiv , Ukraine
| | - Karen Tarasenko
- Enamine Limited , Chervonotkatska 78 , 02094 Kyiv , Ukraine.,V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry of the National Academy of Sciences of Ukraine , Murmanska 1 , 02094 Kyiv , Ukraine
| | - Olga Zaporozhets
- Chemistry Department , Taras Shevchenko National University of Kyiv , Volodymyrska 64 , 01601 Kyiv , Ukraine
| | - Yurii Pustovit
- Enamine Limited , Chervonotkatska 78 , 02094 Kyiv , Ukraine.,Institute of Organic Chemistry NAS of Ukraine , Murmanskaya 5 , 02094 Kyiv , Ukraine
| | - Pavel K Mykhailiuk
- Enamine Limited , Chervonotkatska 78 , 02094 Kyiv , Ukraine.,Chemistry Department , Taras Shevchenko National University of Kyiv , Volodymyrska 64 , 01601 Kyiv , Ukraine
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38
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Abstract
The replacement of para-substituted benzenes with saturated bi- and polycyclic bioisosteres - bicyclo[1.1.1]pentane, bicyclo[2.2.2]octane and cubane, - often increases the potency, selectivity and metabolic stability of bioactive compounds. The currently remaining challenge for chemists, however, is to rationally design, synthesize and validate the saturated bioisosteres for ortho- and meta-substituted benzenes.
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39
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Abstract
Diazoacetonitrile (N2CHCN) is a small reactive diazoalkane. It has been synthesized for the first time already in 1898 by Theodor Curtius, however, did not gain much recognition in organic synthesis until recently. Only in 2015, after introduction of in situ and flow protocols for the safe generation of diazoacetonitrile, it started gaining popularity. In this minireview, the synthetic properties and applications of this valuable reagent are discussed.
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Affiliation(s)
- Pavel K Mykhailiuk
- Enamine Ltd., Chervonotkatska 78, 02094, Kyiv, Ukraine.,Chemistry Department, Taras Shevchenko National University of Kyiv, Volodymyrska 64, 01601, Kyiv, Ukraine
| | - Rene M Koenigs
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
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40
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Affiliation(s)
- Dmitry Dibchak
- Enamine Ltd., Chervonotkatska 78, 02094 Kyiv, Ukraine
- Igor Sikorsky Kyiv Polytechnic Institute, Department of Chemical Technology, Prosp. Peremohy 37, 03056 Kyiv, Ukraine
| | - Valeriya Shcherbacova
- Enamine Ltd., Chervonotkatska 78, 02094 Kyiv, Ukraine
- Igor Sikorsky Kyiv Polytechnic Institute, Department of Chemical Technology, Prosp. Peremohy 37, 03056 Kyiv, Ukraine
| | | | - Pavel K. Mykhailiuk
- Enamine Ltd., Chervonotkatska 78, 02094 Kyiv, Ukraine
- Taras Shevchenko National University of Kyiv, Chemistry Department, Volodymyrska 64, 01601 Kyiv, Ukraine
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41
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Bychek RM, Hutskalova V, Bas YP, Zaporozhets OA, Zozulya S, Levterov VV, Mykhailiuk PK. Difluoro-Substituted Bicyclo[1.1.1]pentanes for Medicinal Chemistry: Design, Synthesis, and Characterization. J Org Chem 2019; 84:15106-15117. [PMID: 31553875 DOI: 10.1021/acs.joc.9b01947] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A practical synthetic approach to the difluoro-substituted bicyclo[1.1.1]pentanes was developed. The key step was an addition of difluorocarbene (:CF2) to electron-rich bicyclo[1.1.0]butanes by the CF3TMS/NaI system. The obtained difluoro-bicyclo[1.1.1]pentanes are suggested to be used as saturated bioisosteres of benzene rings for the purpose of drug discovery projects.
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Affiliation(s)
- Roman M Bychek
- Enamine Ltd. , Chervonotkatska 78 , Kyiv 02094 , Ukraine
| | - Valeriia Hutskalova
- Enamine Ltd. , Chervonotkatska 78 , Kyiv 02094 , Ukraine.,Taras Shevchenko National University of Kyiv , Chemistry Department , Volodymyrska 64 , Kyiv 01601 , Ukraine
| | - Yuliya P Bas
- Taras Shevchenko National University of Kyiv , Chemistry Department , Volodymyrska 64 , Kyiv 01601 , Ukraine
| | - Olga A Zaporozhets
- Taras Shevchenko National University of Kyiv , Chemistry Department , Volodymyrska 64 , Kyiv 01601 , Ukraine
| | - Sergey Zozulya
- Enamine Ltd. , Chervonotkatska 78 , Kyiv 02094 , Ukraine.,Bienta , Chervonotkatska 78 , Kyiv 02094 , Ukraine
| | | | - Pavel K Mykhailiuk
- Enamine Ltd. , Chervonotkatska 78 , Kyiv 02094 , Ukraine.,Taras Shevchenko National University of Kyiv , Chemistry Department , Volodymyrska 64 , Kyiv 01601 , Ukraine
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42
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Mykhailiuk PK, Koenigs RM. Frontispiece: Difluorodiazoethane (CF
2
HCHN
2
): A New Reagent for the Introduction of the Difluoromethyl Group. Chemistry 2019. [DOI: 10.1002/chem.201982461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Pavel K. Mykhailiuk
- Enamine Ltd. Chervonotkatska 78 02094 Kyiv Ukraine
- Chemistry DepartmentTaras Shevchenko National University of Kyiv Volodymyrska 64 01601 Kyiv Ukraine
| | - Rene M. Koenigs
- Institute of Organic ChemistryRWTH Aachen University Landoltweg 1 52074 Aachen Germany
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43
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Ni S, Padial NM, Kingston C, Vantourout JC, Schmitt DC, Edwards JT, Kruszyk MM, Merchant RR, Mykhailiuk PK, Sanchez BB, Yang S, Perry MA, Gallego GM, Mousseau JJ, Collins MR, Cherney RJ, Lebed PS, Chen JS, Qin T, Baran PS. A Radical Approach to Anionic Chemistry: Synthesis of Ketones, Alcohols, and Amines. J Am Chem Soc 2019; 141:6726-6739. [PMID: 30943023 DOI: 10.1021/jacs.9b02238] [Citation(s) in RCA: 121] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Historically accessed through two-electron, anionic chemistry, ketones, alcohols, and amines are of foundational importance to the practice of organic synthesis. After placing this work in proper historical context, this Article reports the development, full scope, and a mechanistic picture for a strikingly different way of forging such functional groups. Thus, carboxylic acids, once converted to redox-active esters (RAEs), can be utilized as formally nucleophilic coupling partners with other carboxylic derivatives (to produce ketones), imines (to produce benzylic amines), or aldehydes (to produce alcohols). The reactions are uniformly mild, operationally simple, and, in the case of ketone synthesis, broad in scope (including several applications to the simplification of synthetic problems and to parallel synthesis). Finally, an extensive mechanistic study of the ketone synthesis is performed to trace the elementary steps of the catalytic cycle and provide the end-user with a clear and understandable rationale for the selectivity, role of additives, and underlying driving forces involved.
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Affiliation(s)
- Shengyang Ni
- Department of Chemistry , Scripps Research , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Natalia M Padial
- Department of Chemistry , Scripps Research , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Cian Kingston
- Department of Chemistry , Scripps Research , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Julien C Vantourout
- Department of Chemistry , Scripps Research , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Daniel C Schmitt
- Pfizer Medicinal Sciences , Eastern Point Road , Groton , Connecticut 06340 , United States
| | - Jacob T Edwards
- Department of Chemistry , Scripps Research , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Monika M Kruszyk
- Department of Chemistry , Scripps Research , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Rohan R Merchant
- Department of Chemistry , Scripps Research , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Pavel K Mykhailiuk
- Department of Chemistry , Scripps Research , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States.,Enamine Ltd. , Chervonotkatska 78 , 02094 Kyiv , Ukraine.,Chemistry Department , Taras Shevchenko National University of Kyiv , Volodymyrska 64 , 01601 Kyiv , Ukraine
| | - Brittany B Sanchez
- Automated Synthesis Facility , Scripps Research , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Shouliang Yang
- Department of Chemistry , La Jolla Laboratories , Pfizer 10770 Science Center Drive , San Diego , California 92121 , United States
| | - Matthew A Perry
- Pfizer Medicinal Sciences , Eastern Point Road , Groton , Connecticut 06340 , United States
| | - Gary M Gallego
- Department of Chemistry , La Jolla Laboratories , Pfizer 10770 Science Center Drive , San Diego , California 92121 , United States
| | - James J Mousseau
- Pfizer Medicinal Sciences , Eastern Point Road , Groton , Connecticut 06340 , United States
| | - Michael R Collins
- Department of Chemistry , La Jolla Laboratories , Pfizer 10770 Science Center Drive , San Diego , California 92121 , United States
| | - Robert J Cherney
- Research & Development , Bristol-Myers Squibb Company , Rt. 206 & Province Line Road , Princeton , New Jersey 08543 , United States
| | - Pavlo S Lebed
- Enamine Ltd. , Chervonotkatska 78 , 02094 Kyiv , Ukraine.,ChemBioCenter , Taras Shevchenko National University of Kyiv , Volodymyrska 64 , 01601 Kyiv , Ukraine
| | - Jason S Chen
- Automated Synthesis Facility , Scripps Research , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Tian Qin
- Department of Chemistry , Scripps Research , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Phil S Baran
- Department of Chemistry , Scripps Research , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
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44
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Fominova K, Diachuk T, Sadkova IV, Mykhailiuk PK. Synthesis of 2,2-Disubstituted Spirocyclic Pyrrolidines by Intramolecular Dieckmann Condensation. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801750] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | | | | | - Pavel K. Mykhailiuk
- Enamine Ltd.; Chervonotkatska 78 01103 Kyiv Ukraine
- Taras Shevchenko National University of Kyiv; Chemistry Department; Volodymyrska 64 01601 Kyiv Ukraine
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45
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Mykhailiuk PK, Koenigs RM. Difluorodiazoethane (CF
2
HCHN
2
): A New Reagent for the Introduction of the Difluoromethyl Group. Chemistry 2019; 25:6053-6063. [DOI: 10.1002/chem.201804953] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 12/07/2018] [Indexed: 01/22/2023]
Affiliation(s)
- Pavel K. Mykhailiuk
- Enamine Ltd. Chervonotkatska 78 02094 Kyiv Ukraine
- Chemistry DepartmentTaras Shevchenko National University of Kyiv Volodymyrska 64 01601 Kyiv Ukraine
| | - Rene M. Koenigs
- Institute of Organic ChemistryRWTH Aachen University Landoltweg 1 52074 Aachen Germany
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46
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Chen TG, Zhang H, Mykhailiuk PK, Merchant RR, Smith CA, Qin T, Baran PS. Quaternary Centers by Nickel-Catalyzed Cross-Coupling of Tertiary Carboxylic Acids and (Hetero)Aryl Zinc Reagents. Angew Chem Int Ed Engl 2019; 58:2454-2458. [PMID: 30623547 PMCID: PMC6391118 DOI: 10.1002/anie.201814524] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Indexed: 01/07/2023]
Abstract
This work bridges a gap in the cross-coupling of aliphatic redox-active esters with aryl zinc reagents. Previously limited to primary, secondary, and specialized tertiary centers, a new protocol has been devised to enable the coupling of general tertiary systems using nickel catalysis. The scope of this operationally simple method is broad, and it can be used to simplify the synthesis of medicinally relevant motifs bearing quaternary centers.
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Affiliation(s)
- Tie-Gen Chen
- Department of Chemistry, Scripps Research, North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Haolin Zhang
- Department of Chemistry, Scripps Research, North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Pavel K Mykhailiuk
- Department of Chemistry, Scripps Research, North Torrey Pines Road, La Jolla, CA, 92037, USA
- Enamine Ltd., Chervonotkatska 78, 02094, Kyiv, Ukraine
- Taras Shevchenko National University of Kyiv, Chemistry Department, Volodymyrska 64, 01601, Kyiv, Ukraine
| | - Rohan R Merchant
- Department of Chemistry, Scripps Research, North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Courtney A Smith
- Department of Chemistry, Scripps Research, North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Tian Qin
- Department of Chemistry, Scripps Research, North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Phil S Baran
- Department of Chemistry, Scripps Research, North Torrey Pines Road, La Jolla, CA, 92037, USA
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Chen TG, Zhang H, Mykhailiuk PK, Merchant RR, Smith CA, Qin T, Baran PS. Quaternary Centers by Nickel-Catalyzed Cross-Coupling of Tertiary Carboxylic Acids and (Hetero)Aryl Zinc Reagents. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201814524] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Tie-Gen Chen
- Department of Chemistry; Scripps Research; North Torrey Pines Road La Jolla CA 92037 USA
| | - Haolin Zhang
- Department of Chemistry; Scripps Research; North Torrey Pines Road La Jolla CA 92037 USA
| | - Pavel K. Mykhailiuk
- Department of Chemistry; Scripps Research; North Torrey Pines Road La Jolla CA 92037 USA
- Enamine Ltd.; Chervonotkatska 78 02094 Kyiv Ukraine
- Taras Shevchenko National University of Kyiv; Chemistry Department; Volodymyrska 64 01601 Kyiv Ukraine
| | - Rohan R. Merchant
- Department of Chemistry; Scripps Research; North Torrey Pines Road La Jolla CA 92037 USA
| | - Courtney A. Smith
- Department of Chemistry; Scripps Research; North Torrey Pines Road La Jolla CA 92037 USA
| | - Tian Qin
- Department of Chemistry; Scripps Research; North Torrey Pines Road La Jolla CA 92037 USA
| | - Phil S. Baran
- Department of Chemistry; Scripps Research; North Torrey Pines Road La Jolla CA 92037 USA
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Parasar D, Jayaratna NB, Muñoz-Castro A, Conway AE, Mykhailiuk PK, Dias HVR. Carbonyl complexes of copper(i) stabilized by bridging fluorinated pyrazolates and halide ions. Dalton Trans 2019; 48:6358-6371. [DOI: 10.1039/c9dt00486f] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Halide ions provide a promising tool to stabilize – through bridging interactions – copper carbonyl clusters of fluorinated pyrazolates.
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Affiliation(s)
- Devaborniny Parasar
- Department of Chemistry and Biochemistry
- The University of Texas at Arlington
- Arlington
- USA
| | - Naleen B. Jayaratna
- Department of Physical Sciences
- Faculty of Applied Sciences
- Rajarata University of Sri Lanka
- Mihintale 50300
- Sri Lanka
| | - Alvaro Muñoz-Castro
- Grupo de Química Inorgánica y Materiales Moleculares
- Facultad de Ingeniería
- Universidad Autonoma de Chile
- Santiago
- Chile
| | - Allison E. Conway
- Department of Chemistry and Biochemistry
- The University of Texas at Arlington
- Arlington
- USA
| | - Pavel K. Mykhailiuk
- Enamine Ltd
- Kyiv 02094
- Ukraine
- Taras Shevchenko National University of Kyiv
- Chemistry Department
| | - H. V. Rasika Dias
- Department of Chemistry and Biochemistry
- The University of Texas at Arlington
- Arlington
- USA
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Hutskalova V, Mykhailiuk PK. Pd-Catalyzed directedCH-(hetero)arylation of cyclic α-amino acids: effects of substituents and the ring size. Org Biomol Chem 2019; 17:4342-4349. [DOI: 10.1039/c9ob00393b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A systematic study on the directed Pd-catalyzed (hetero)arylation of 26 substituted cyclic α-amino acids at the C(3)-atom was performed. For the first time, the 7- and 8-membered cyclic amino acids were introduced to C–H activation. 8–Aminoquinoline was used as a directing group.
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Affiliation(s)
- Valeriia Hutskalova
- Enamine Ltd
- Kyiv 02094
- Ukraine
- Department of Chemistry
- National Taras Shevchenko University of Kyiv
| | - Pavel K. Mykhailiuk
- Enamine Ltd
- Kyiv 02094
- Ukraine
- Department of Chemistry
- National Taras Shevchenko University of Kyiv
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Zinchenko AM, Muzychka LV, Kucher OV, Sadkova IV, Mykhailiuk PK, Smolii OB. One-Pot Synthesis of 6-Aminopyrido[2,3- d]pyrimidin-7-ones. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801204] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Anna M. Zinchenko
- Institute of Bioorganic Chemistry and Petrochemistry of the National Academy of Sciences of Ukraine; Murmanska 1 02094 Kyiv Ukraine
| | - Lyubov V. Muzychka
- Institute of Bioorganic Chemistry and Petrochemistry of the National Academy of Sciences of Ukraine; Murmanska 1 02094 Kyiv Ukraine
| | - Olexandr V. Kucher
- Institute of Bioorganic Chemistry and Petrochemistry of the National Academy of Sciences of Ukraine; Murmanska 1 02094 Kyiv Ukraine
| | | | - Pavel K. Mykhailiuk
- Enamine Ltd.; Chervonotkatska 78 01103 Kyiv Ukraine
- Chemistry Department; Taras Shevchenko National University of Kyiv; Volodymyrska 64 01601 Kyiv Ukraine
| | - Oleg B. Smolii
- Institute of Bioorganic Chemistry and Petrochemistry of the National Academy of Sciences of Ukraine; Murmanska 1 02094 Kyiv Ukraine
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