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Yin F, Qu L, Chen Y, Luo Z, Kong L, Wang X. Stereoselective Synthesis of β, γ-Fused Bicyclic γ-Ureasultams via an Intramolecular Mannich and aza-Michael Addition Cascade. Chemistry 2024; 30:e202400438. [PMID: 38470414 DOI: 10.1002/chem.202400438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 03/12/2024] [Accepted: 03/12/2024] [Indexed: 03/13/2024]
Abstract
A novel approach has been developed for the synthesis of bicyclic β, γ-fused bicyclic γ-ureasultams containing two consecutive chiral centers through an intramolecular Mannich and aza-Michael addition cascade of alkenyl sulfamides. The straightforward practical procedure and readily available starting materials enable the synthesis of variously substituted ureasultams. In addition, bicyclic γ-ureasultams is a class of potential biotin analogues.
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Affiliation(s)
- Fucheng Yin
- China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, 210009, People's Republic of China
| | - Lailiang Qu
- China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, 210009, People's Republic of China
- Xinyang Normal University, Xinyang, 464000, People's Republic of China
| | - Yifan Chen
- China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, 210009, People's Republic of China
| | - Zhongwen Luo
- China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, 210009, People's Republic of China
| | - Lingyi Kong
- China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, 210009, People's Republic of China
| | - Xiaobing Wang
- China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, 210009, People's Republic of China
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2
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Paul S, Adelfinsky D, Salome C, Fessard T, Brown MK. 2,5-disubstituted bicyclo[2.1.1]hexanes as rigidified cyclopentane variants. Chem Sci 2023; 14:8070-8075. [PMID: 37538817 PMCID: PMC10395266 DOI: 10.1039/d3sc02695g] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Accepted: 07/06/2023] [Indexed: 08/05/2023] Open
Abstract
Identification of rigid counterparts for common flexible scaffolds is crucial to the advancement of medicinal chemistry. Here we showcase a new class of building blocks, 2,5-disubstituted bicyclo[2.1.1]hexanes that can act as rigidified cis-, or trans-1,3-disubstituted cyclopentanes, common motifs in drugs. The scalable synthesis of these structures was enabled through the use of C-H functionalization logic and cycloaddition reactions.
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Affiliation(s)
- Shashwati Paul
- Department of Chemistry, Indiana University 800 E. Kirkwood Ave Bloomington IN 47405 USA
| | - Daniel Adelfinsky
- Department of Chemistry, Indiana University 800 E. Kirkwood Ave Bloomington IN 47405 USA
| | - Christophe Salome
- SpiroChem AG Rosental Area, WRO-1047-3, Mattenstrasse 22 4058 Basel Switzerland
| | - Thomas Fessard
- SpiroChem AG Rosental Area, WRO-1047-3, Mattenstrasse 22 4058 Basel Switzerland
| | - M Kevin Brown
- Department of Chemistry, Indiana University 800 E. Kirkwood Ave Bloomington IN 47405 USA
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3
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Lin L, Wang P, Dong T, Tsui GC, Liao S. Radical Fluorosulfonyl Heteroarylation of Unactivated Alkenes with Quinoxalin-2(1 H)-ones and Related N-Heterocycles. Org Lett 2023; 25:1088-1093. [PMID: 36775923 DOI: 10.1021/acs.orglett.2c04315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
The incorporation of sulfonyl fluoride groups into molecules has been proved effective to enhance their biological activities or introduce new functions. Herein, we report a transition-metal-free and visible-light-mediated radical 1-fluorosulfonyl-2-heteroarylation of alkenes, which could allow access to a series of SO2F-containing quinoxalin-2(1H)-ones, which are a critical structural motif widely present in a number of biologically active molecules. Further application of the method to the modification of other heterocycles and drug molecules as well as ligation chemistry via SuFEx click reactions is also demonstrated.
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Affiliation(s)
- Lu Lin
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Peng Wang
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Tao Dong
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR 12333, China
| | - Gavin Chit Tsui
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR 12333, China
| | - Saihu Liao
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou 350108, China.,State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen 361005, China
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4
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Kim DS, Lee HG. Formation of the Tertiary Sulfonamide C(sp 3)-N Bond Using Alkyl Boronic Ester via Intramolecular and Intermolecular Copper-Catalyzed Oxidative Cross-Coupling. J Org Chem 2021; 86:17380-17394. [PMID: 34762422 DOI: 10.1021/acs.joc.1c01759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A synthetic strategy for the formation of C(sp3)-N bonds, particularly through a copper-catalyzed oxidative cross-coupling, is rare. Herein, we report a novel synthetic approach for the preparation of tertiary sulfonamides via copper-catalyzed intra- and intermolecular oxidative C(sp3)-N cross-coupling reactions. This method allows the utilization of the readily available C(sp3)-based pinacol boronate as a substrate and the tolerance of a wide range of functional groups under mild reaction conditions. The success of this strategy relies on the unprecedented additive effects of silanol and NaIO4.
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Affiliation(s)
- Dong Sun Kim
- Department of Chemistry, College of National Science, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Hong Geun Lee
- Department of Chemistry, College of National Science, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
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Sokolov VV, Klochkova AA, Rassadin VA. A Diastereoselective Route to Benzoannelated Bridged Sultams. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1531-2176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
AbstractA practical diastereoselective method for the synthesis of benzoannelated tri- and tetracyclic bridged sultams has been developed. The synthetic route employs widely available, substituted o-iodoanilines and is based on intramolecular Michael addition followed by cycloalkylation with α,ω-dihaloalkanes, or vice versa. The target compounds were isolated in good yields and the diastereoselectivity of the reaction could be easily controlled by the order of Michael addition and cycloalkylation steps.
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6
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Jeremias N, Mohr LM, Bach T. Intermolecular [2 + 2] Photocycloaddition of α,β-Unsaturated Sulfones: Catalyst-Free Reaction and Catalytic Variants. Org Lett 2021; 23:5674-5678. [PMID: 34263603 DOI: 10.1021/acs.orglett.1c01794] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
2-Aryl-1-sulfonyl-substituted cyclobutanes were prepared in an intermolecular [2 + 2] photocycloaddition from various α,β-unsaturated sulfones and olefins upon irradiation at λ = 300 nm (26 examples, 60-99% yield). Lewis acids catalyzed the [2 + 2] photocycloaddition of 2-benzimidazolyl styryl sulfones. At short wavelengths, the latter substrates underwent C-S bond cleavage but AlBr3 (5 mol %) allowed for an intermolecular reaction with 2,3-dimethyl-2-butene at longer wavelengths. A chiral-at-metal Lewis acid (2 mol %) facilitated an enantioselective reaction (up to 77% ee).
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Affiliation(s)
- Noah Jeremias
- Department Chemie and Catalysis Research Center (CRC), Technische Universität München, 85747 Garching, Germany
| | - Lisa-Marie Mohr
- Department Chemie and Catalysis Research Center (CRC), Technische Universität München, 85747 Garching, Germany
| | - Thorsten Bach
- Department Chemie and Catalysis Research Center (CRC), Technische Universität München, 85747 Garching, Germany
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Hys VY, Milokhov DS, Keda TY, Omelchenko IV, Konovalova IS, Shishkina SV, Volovenko YM. Efficient synthesis of seven-membered Aza-sultams: Heterofused amino-1,2,4-thiadiazepine dioxides. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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8
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Kostyuk A, Filimonchuk SL, Nazarenko K, Shvydenko T, Shvydenko K, Rusanov E, Tolmachev A. Synthesis of 3-Iodomethyl Sultams. Synlett 2020. [DOI: 10.1055/s-0040-1707227] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A method for the synthesis of iodomethyl-substituted five-membered sultams has been developed. The sultams were synthesized by intramolecular iodoamination of alkenyl sulfamides. The method allows synthesis of N- and C-substituted sultams. NH-Sultams were prepared by acidic cleavage of the corresponding tert-butyl sultams that are readily available. Varying the length of alkenyl substituent at sulfamide it was shown that only five- and six-membered sultams could be prepared by this method. Neither four- nor seven-membered sultams were detected. The simple practical procedure and available starting materials make the variously substituted sultams readily available.
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Affiliation(s)
- Aleksandr Kostyuk
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine
| | | | | | - Tetiana Shvydenko
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine
| | | | - Eduard Rusanov
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine
| | - Andrei Tolmachev
- Department of Chemistry, Taras Shevchenko National University of Kyiv
- Enamine Ltd
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9
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Affiliation(s)
- Oleksandr O. Grygorenko
- Enamine Ltd. Chervonotkatska Street 78 020941 Kyiv Ukraine
- Taras Shevchenko National University of Kyiv Volodymyrska Street 60 01601 Kyiv Ukraine
| | - Bohdan V. Vashchenko
- Enamine Ltd. Chervonotkatska Street 78 020941 Kyiv Ukraine
- Taras Shevchenko National University of Kyiv Volodymyrska Street 60 01601 Kyiv Ukraine
| | - Oleksandr P. Blahun
- Enamine Ltd. Chervonotkatska Street 78 020941 Kyiv Ukraine
- Taras Shevchenko National University of Kyiv Volodymyrska Street 60 01601 Kyiv Ukraine
| | - Serhii Zhersh
- Enamine Ltd. Chervonotkatska Street 78 020941 Kyiv Ukraine
- Taras Shevchenko National University of Kyiv Volodymyrska Street 60 01601 Kyiv Ukraine
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10
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Blahun OP, Melnychenko H, Kuchkovska YO, Zhersh S, Tolmachev AA, Grygorenko OO. Synthesis of Functionalized Bridged Bicyclic Sulfonamides with a Bridgehead Nitrogen Atom. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000314] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Oleksandr P. Blahun
- Enamine Ltd.; Chervonotkatska Street 78 02094 Kyiv Ukraine; www.enamine.net
- Taras Shevchenko National University of Kyiv; Volodymyrska Street 60 01601 Kyiv Ukraine
| | - Heorhii Melnychenko
- Taras Shevchenko National University of Kyiv; Volodymyrska Street 60 01601 Kyiv Ukraine
| | - Yuliya O. Kuchkovska
- Enamine Ltd.; Chervonotkatska Street 78 02094 Kyiv Ukraine; www.enamine.net
- Taras Shevchenko National University of Kyiv; Volodymyrska Street 60 01601 Kyiv Ukraine
| | - Serhii Zhersh
- Enamine Ltd.; Chervonotkatska Street 78 02094 Kyiv Ukraine; www.enamine.net
| | - Andrey A. Tolmachev
- Enamine Ltd.; Chervonotkatska Street 78 02094 Kyiv Ukraine; www.enamine.net
- Taras Shevchenko National University of Kyiv; Volodymyrska Street 60 01601 Kyiv Ukraine
| | - Oleksandr O. Grygorenko
- Enamine Ltd.; Chervonotkatska Street 78 02094 Kyiv Ukraine; www.enamine.net
- Taras Shevchenko National University of Kyiv; Volodymyrska Street 60 01601 Kyiv Ukraine
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11
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Computational-aided design of a library of lactams through a diversity-oriented synthesis strategy. Bioorg Med Chem 2020; 28:115539. [PMID: 32503698 DOI: 10.1016/j.bmc.2020.115539] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 04/10/2020] [Accepted: 04/29/2020] [Indexed: 02/07/2023]
Abstract
Small molecule libraries for virtual screening are becoming a well-established tool for the identification of new hit compounds. As for experimental assays, the library quality, defined in terms of structural complexity and diversity, is crucial to increase the chance of a successful outcome in the screening campaign. In this context, Diversity-Oriented Synthesis has proven to be very effective, as the compounds generated are structurally complex and differ not only for the appendages, but also for the molecular scaffold. In this work, we automated the design of a library of lactams by applying a Diversity-Oriented Synthesis strategy called Build/Couple/Pair. We evaluated the novelty and diversity of these compounds by comparing them with lactam moieties contained in approved drugs, natural products, and bioactive compounds from ChEMBL. Finally, depending on their scaffold we classified them into β-, γ-, δ-, ε-, and isolated, fused, bridged and spirolactam groups and we assessed their drug-like and lead-like properties, thus providing the value of this novel in silico designed library for medicinal chemistry applications.
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12
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Blahun OP, Rozhenko AB, Rusanov E, Zhersh S, Tolmachev AA, Volochnyuk DM, Grygorenko OO. Twisting and Turning the Sulfonamide Bond: A Synthetic, Quantum Chemical, and Crystallographic Study. J Org Chem 2020; 85:5288-5299. [PMID: 32162518 DOI: 10.1021/acs.joc.9b03394] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Structural restriction of the sulfonamide bond was used to design sultams with abnormal geometric parameters. Based on analysis of tertiary aliphatic sulfonamides published in the Cambridge crystallographic database, Paquette's sultams (i.e., bridged bicyclic sultams with a bridgehead nitrogen atom) were outlined, and a number of these compounds (including the novel smallest representative, 2-thia-1-azabicyclo[2.1.1]hexane 2,2-dioxide) were synthesized by cyclization of the corresponding amino sulfonyl fluorides. A series of tertiary aliphatic sulfonamides was studied by crystallographic and quantum chemical methods. It was found that the s-character of the nitrogen lone pair is the most important factor defining properties of the S-N bond. Thus, going from the sp3-hybrid lone pair in common sulfonamides to the sp-like lone pair in the smallest Paquette's sultam resulted in an increase in S-N bond length by ca. 0.06 Å. The strain energy of ca. 30 kcal/mol was predicted for the latter compound, which was higher than for any existing sulfonamides studied.
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Affiliation(s)
- Oleksandr P Blahun
- Enamine Ltd., Chervonotkatska Street 78, Kyiv 02094, Ukraine.,Taras Shevchenko National University of Kyiv, Volodymyrska Street 60, Kyiv 01601, Ukraine
| | - Alexander B Rozhenko
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Murmanska Street 5, Kyiv 02660, Ukraine.,National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Peremogy Avenue 37, Kyiv 03056, Ukraine
| | - Eduard Rusanov
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Murmanska Street 5, Kyiv 02660, Ukraine
| | - Serhii Zhersh
- Enamine Ltd., Chervonotkatska Street 78, Kyiv 02094, Ukraine
| | - Andrey A Tolmachev
- Enamine Ltd., Chervonotkatska Street 78, Kyiv 02094, Ukraine.,Taras Shevchenko National University of Kyiv, Volodymyrska Street 60, Kyiv 01601, Ukraine
| | - Dmitriy M Volochnyuk
- Enamine Ltd., Chervonotkatska Street 78, Kyiv 02094, Ukraine.,Taras Shevchenko National University of Kyiv, Volodymyrska Street 60, Kyiv 01601, Ukraine.,Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Murmanska Street 5, Kyiv 02660, Ukraine
| | - Oleksandr O Grygorenko
- Enamine Ltd., Chervonotkatska Street 78, Kyiv 02094, Ukraine.,Taras Shevchenko National University of Kyiv, Volodymyrska Street 60, Kyiv 01601, Ukraine
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