1
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Silva LC, Dos Santos Filho RF, de Oliveira AA, Martins FT, Cunha S, de Almeida Soares CM, Pereira M. 3-phenacylideneoxindoles as a new class of antifungal compounds against Paracoccidioides spp. Future Microbiol 2023; 18:93-105. [PMID: 36661071 DOI: 10.2217/fmb-2022-0133] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Aims: Considering the need to identify new compounds with antifungal action, the activity of five 3-phenacylideneoxindoles compounds was evaluated. Materials & methods: The compounds were synthesized, and their antifungal activity was elucidated through minimum inhibitory concentration tests and interaction assay with other antifungals. Potential targets of compounds were predicted in silico. Results: 3-phenacylideneoxindoles compounds inhibited fungal growth with minimum inhibitory concentration and minimum fungicidal concentration ranging from 3.05 to 12.26 μM. The compounds demonstrated high selectivity index and presented a synergistic effect with itraconazole. In silico prediction revealed the pentafunctional AROM polypeptide, enolase, superoxide dismutase, catalase and kinases as proteins targets of the compound 4a. Conclusion: The results demonstrate that 3-phenacylideneoxindoles is a potential new class of antifungal compounds for paracoccidioidomycosis treatment.
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Affiliation(s)
- Lívia C Silva
- Institute of Biological Sciences, Federal University of Goiás, Goiânia, Goiás, 74690-900, Brazil
| | | | - Amanda A de Oliveira
- Institute of Tropical Pathology & Public Health, Federal University of Goiás, Goiânia, Goiás, 74690-900, Brazil
| | - Felipe T Martins
- Chemistry institute, Federal University of Goiás, Goiânia, Goiás, 74690-900, Brazil
| | - Silvio Cunha
- Chemistry institute, Federal University of Bahia, Salvador, Bahia, 40170-115, Brazil
| | | | - Maristela Pereira
- Institute of Biological Sciences, Federal University of Goiás, Goiânia, Goiás, 74690-900, Brazil
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2
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Pastor M, Vayer M, Weinstabl H, Maulide N. Electrochemical Umpolung C-H Functionalization of Oxindoles. J Org Chem 2021; 87:606-612. [PMID: 34962127 PMCID: PMC8749966 DOI: 10.1021/acs.joc.1c02616] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
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Herein, we present
a general electrochemical method to access unsymmetrical
3,3-disubstituted oxindoles by direct C–H functionalization
where the oxindole fragment behaves as an electrophile. This Umpolung
approach does not rely on stoichiometric oxidants and proceeds under
mild, environmentally benign conditions. Importantly, it enables the
functionalization of these scaffolds through C–O, and by extension
to C–C or even C–N bond formation.
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Affiliation(s)
- Miryam Pastor
- Christian Doppler Laboratory for Entropy-Oriented Drug Design, Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria
| | - Marie Vayer
- Christian Doppler Laboratory for Entropy-Oriented Drug Design, Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria
| | - Harald Weinstabl
- Boehringer-Ingelheim RCV, Doktor-Boehringer-Gasse 5-11, 1120 Vienna, Austria
| | - Nuno Maulide
- Christian Doppler Laboratory for Entropy-Oriented Drug Design, Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria
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3
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Warghude PK, Sabale AS, Dixit R, Vanka K, Bhat RG. An easy and practical approach to access multifunctional cylcopentadiene- and cyclopentene-spirooxindoles via [3 + 2] annulation. Org Biomol Chem 2021; 19:4338-4345. [PMID: 33908568 DOI: 10.1039/d1ob00514f] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A highly regioselective [3 + 2] annulation of Morita-Baylis-Hillman (MBH) carbonates of isatin with aurone/thioaurone is developed. Spiroheterocycles such as spirooxindole cyclopentadiene and spirooxindole fused hydroxy cyclopentene derivatives are constructed in one pot by exploring the reactivity of Lewis bases. Combined experimental and density functional theory (DFT) calculations offered an insight into the reaction mechanism.
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Affiliation(s)
- Prakash K Warghude
- Department of Chemistry, Indian Institute of Science Education and Research (IISER)-Pune, Dr Homi Bhabha Road, Pashan, Pune, 411008, Maharashtra, India.
| | - Abhijeet S Sabale
- Department of Chemistry, Indian Institute of Science Education and Research (IISER)-Pune, Dr Homi Bhabha Road, Pashan, Pune, 411008, Maharashtra, India.
| | - Ruchi Dixit
- Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune-411008, India and Academy of Scientific and Innovative Research (AcSIR), Ghaziabad - 201002, India
| | - Kumar Vanka
- Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune-411008, India and Academy of Scientific and Innovative Research (AcSIR), Ghaziabad - 201002, India
| | - Ramakrishna G Bhat
- Department of Chemistry, Indian Institute of Science Education and Research (IISER)-Pune, Dr Homi Bhabha Road, Pashan, Pune, 411008, Maharashtra, India.
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4
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Mandal T, Chakraborti G, Maiti S, Dash J. Domino Grignard Addition and Oxidation for the One-Pot Synthesis of C2-Quaternary 2-Hydroxyindoxyls. Org Lett 2019; 21:8044-8048. [PMID: 31524398 DOI: 10.1021/acs.orglett.9b03022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We herein delineate an unexplored reactivity of 3-hydroxyoxindoles toward Grignard addition enabling a rapid access to a broad range of unnatural C2-quaternary 2-hydroxyindoxyls in high yields. The reaction proceeds via a mechanistically intriguing one-pot 1,2-hydride shift followed by autoxidation pathway. The utility of this method is demonstrated by the synthesis of a new class of bis-indoxyl spirofuran derivatives.
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Affiliation(s)
- Tirtha Mandal
- School of Chemical Sciences , Indian Association for the Cultivation of Science , 2A & 2B Raja S. C. Mullick Road , Jadavpur, Kolkata 700032 , India
| | - Gargi Chakraborti
- School of Chemical Sciences , Indian Association for the Cultivation of Science , 2A & 2B Raja S. C. Mullick Road , Jadavpur, Kolkata 700032 , India
| | - Subhadip Maiti
- School of Chemical Sciences , Indian Association for the Cultivation of Science , 2A & 2B Raja S. C. Mullick Road , Jadavpur, Kolkata 700032 , India
| | - Jyotirmayee Dash
- School of Chemical Sciences , Indian Association for the Cultivation of Science , 2A & 2B Raja S. C. Mullick Road , Jadavpur, Kolkata 700032 , India
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5
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Synthesis of chiral spiro-cyclopentene/cyclopentadiene-oxindoles through an asymmetric [3 + 2] cycloaddition of isatin-derived MBH carbonates and β,γ-unsaturated α-keto esters. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.04.040] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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6
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Chander S, Tang CR, Penta A, Wang P, Bhagwat DP, Vanthuyne N, Albalat M, Patel P, Sankpal S, Zheng YT, Sankaranarayanan M. Hit optimization studies of 3-hydroxy-indolin-2-one analogs as potential anti-HIV-1 agents. Bioorg Chem 2018; 79:212-222. [DOI: 10.1016/j.bioorg.2018.04.027] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 04/13/2018] [Accepted: 04/27/2018] [Indexed: 02/08/2023]
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7
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Kókai E, Halász J, Dancsó A, Nagy J, Simig G, Volk B. Study on the Alkylation Reactions of N(7)-Unsubstituted 1,3-Diazaoxindoles. Molecules 2017; 22:molecules22050846. [PMID: 28534864 PMCID: PMC6154441 DOI: 10.3390/molecules22050846] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Revised: 05/13/2017] [Accepted: 05/16/2017] [Indexed: 11/30/2022] Open
Abstract
The chemistry of the 5,7-dihydro-6H-pyrrolo[2,3-d]pyrimidin-6-one (1,3-diazaoxindole) compound family, possessing a drug-like scaffold, is unexplored. In this study, the alkylation reactions of N(7)-unsubstituted 5-isopropyl-1,3-diazaoxindoles bearing various substituents at the C(2) position have been investigated. The starting compounds were synthesized from the C(5)-unsubstituted parent compounds by condensation with acetone and subsequent catalytic reduction of the 5-isopropylidene moiety. Alkylation of the thus obtained 5-isopropyl derivatives with methyl iodide or benzyl bromide in the presence of a large excess of sodium hydroxide led to 5,7-disubstituted derivatives. Use of butyllithium as the base rendered alkylation in the C(5) position possible with reasonable selectivity, without affecting the N(7) atom. During the study on the alkylation reactions, some interesting by-products were also isolated and characterized.
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Affiliation(s)
- Eszter Kókai
- Directorate of Drug Substance Development, Egis Pharmaceuticals Plc., P.O. Box 100, 1475 Budapest, Hungary.
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, P.O. Box 91, 1521 Budapest, Hungary.
- Department of Materials Technology, GAMF Faculty of Engineering and Computer Science, Pallasz Athéné University, P.O. Box 700, 6001 Kecskemét, Hungary.
| | - Judit Halász
- Directorate of Drug Substance Development, Egis Pharmaceuticals Plc., P.O. Box 100, 1475 Budapest, Hungary.
| | - András Dancsó
- Directorate of Drug Substance Development, Egis Pharmaceuticals Plc., P.O. Box 100, 1475 Budapest, Hungary.
| | - József Nagy
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, P.O. Box 91, 1521 Budapest, Hungary.
| | - Gyula Simig
- Directorate of Drug Substance Development, Egis Pharmaceuticals Plc., P.O. Box 100, 1475 Budapest, Hungary.
| | - Balázs Volk
- Directorate of Drug Substance Development, Egis Pharmaceuticals Plc., P.O. Box 100, 1475 Budapest, Hungary.
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8
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Yang RY, Sun J, Sun Q, Yan CG. Selective construction of polycyclic spirooxindoles via a Cu(OTf)2/HOTf-catalyzed domino reaction of o-arylalkynylacetophenones and 3-phenacylideneoxindoles. Org Biomol Chem 2017; 15:6353-6357. [DOI: 10.1039/c7ob01292f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Under the combined catalysis of Cu(OTf)2/HOTf, the domino annulation reaction ofo-arylalkynyl acetophenones with 3-phenacylideneoxindoles in refluxing acetonitrile selectively afforded functionalized spiro[indoline-3,7′-tetrapheno[7,6-bc]furans].
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Affiliation(s)
- Ren-Yin Yang
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou
- China
| | - Jing Sun
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou
- China
| | - Qiu Sun
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou
- China
| | - Chao-Guo Yan
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou
- China
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9
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Literature Survey and Further Studies on the 3-Alkylation of N-Unprotected 3-Monosubstituted Oxindoles. Practical Synthesis of N-Unprotected 3,3-Disubstituted Oxindoles and Subsequent Transformations on the Aromatic Ring. Molecules 2016; 22:molecules22010024. [PMID: 28035962 PMCID: PMC6155829 DOI: 10.3390/molecules22010024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2016] [Revised: 12/15/2016] [Accepted: 12/17/2016] [Indexed: 12/31/2022] Open
Abstract
The paper provides a comprehensive review of the base-catalysed C3-alkylation of N-unprotected-3-monosubstituted oxindoles. Based on a few, non-systematic studies described in the literature using butyllithium as the deprotonating agent, an optimized method has now been elaborated, via the corresponding lithium salt, for the selective C3-alkylation of this family of compounds. The optimal excess of butyllithium and alkylating agent, and the role of the halogen atom in the latter (alkyl bromides vs. iodides) were also studied. The alkylation protocol has also been extended to some derivatives substituted at the aromatic ring. Finally, various substituents were introduced into the aromatic ring of the N-unprotected 3,3-dialkyloxindoles obtained by this optimized method.
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10
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Shen HQ, Gao X, Liu C, Hu SB, Zhou YG. A Hydrogenation/Oxidative Fragmentation Cascade for Synthesis of Chiral 4,5-Dihydro-1H-benzo[d]azepin-1-ones. Org Lett 2016; 18:5920-5923. [DOI: 10.1021/acs.orglett.6b03027] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hong-Qiang Shen
- State
Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Xiang Gao
- State
Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
| | - Cong Liu
- State
Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
| | - Shu-Bo Hu
- State
Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
| | - Yong-Gui Zhou
- State
Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
- Collaborative Innovation Centre of Chemical Science and Engineering, Tianjin 300071, P. R. China
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