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Construction of novel penta cyclic indolo-furo[3,2-c]quinoline and dihydrochromeno-furo[2,3-b]indol via sequential annulation strategy. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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2
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Langer P. Palladium-Catalyzed Synthesis of Heterocyclic Ring Systems by Combination of Regioselective C–C with Twofold C–N Couplings. Synlett 2022. [DOI: 10.1055/s-0040-1719918] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AbstractThe combination of regioselective palladium-catalyzed C–C with twofold C–N couplings allows for the synthesis of a variety of heterocyclic ring systems. Starting materials include thiophenes and benzothiophenes, pyrroles and indoles, furans and benzofurans, pyridines, quinolines and quinoxalines, complex heterocyclic systems and benzophenone derivatives. The products are in many cases complex polyheterocyclic systems, which are not readily available by other methods or, in a number of cases, were not described in the literature before. They are of pharmacological relevance or interesting in the field of material science. Products include thieno[3,2-b:4,5-b′]diindoles, thieno[3,2-b]indoles, thieno[3,4-b]indoles, 5,10-dihydroindolo[3,2-b]indoles, furo[3,2-b:4,5-b′]diindoles, benzo[4,5]furo[3,2-b]indoles, 5,7-dihydropyrido[3,2-b:5,6-b′]diindoles, 5,7-dihydropyrido[2,3-b:6,5-b´]diindoles, α-, β-, γ- and δ-carbolines, indolo[3,2-b]quinolines, indolo[2,3-b]quinolines, indolo[3,2-c]quinolines, indoloquinoxalines, pyrido[2′,1′:2,3]imidazo[4,5-b]indoles, thiadiazolo[2′,3′:2,3]imidazo[4,5-b]indoles, benzo[b]carbazolediones, acridones and thieno[3,2-b]quinolones.Contents1 Introduction2 Thiophenes and Benzothiophenes3 Pyrroles and Indoles4 Furans and Benzofurans5 Pyridines6 Quinolines and Quinoxalines7 Complex Heterocyclic Systems8 2,3-Dibromonaphthoquinone9 Benzophenone Derivatives10 Conclusions
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Affiliation(s)
- Peter Langer
- Institut für Chemie, Universität Rostock
- Leibniz-Institut für Katalyse an der Universität Rostock e. V
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3
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Do HH, Ullah S, Villinger A, Lecka J, Sévigny J, Ehlers P, Iqbal J, Langer P. Palladium-catalyzed synthesis and nucleotide pyrophosphatase inhibition of benzo[4,5]furo[3,2- b]indoles. Beilstein J Org Chem 2019; 15:2830-2839. [PMID: 31807218 PMCID: PMC6880817 DOI: 10.3762/bjoc.15.276] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 11/12/2019] [Indexed: 01/22/2023] Open
Abstract
A two-step palladium-catalyzed procedure based on Suzuki–Miyaura cross coupling, followed by a double Buchwald–Hartwig reaction, allows for the synthesis of pharmaceutically relevant benzo[4,5]furo[3,2-b]indoles in moderate to very good yield. The synthesized compounds have been analyzed with regard to their inhibitory activity (IC50) of nucleotide pyrophosphatases h-NPP1 and h-NPP3. The activity lies in the nanomolar range. The results were rationalized based on docking studies.
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Affiliation(s)
- Hoang Huy Do
- Institut für Chemie, Universität Rostock, Albert Einstein Str. 3a, 18059 Rostock, Germany.,Faculty of Chemistry, VNU Hanoi University of Science, 19 Le Thanh Tong, Hoan Kiem, Hanoi, 110403, Vietnam
| | - Saif Ullah
- Centre for Advanced Drug Research, COMSATS University Islamabad, Abbottabad Campus, Abbottabad-22060, Pakistan
| | - Alexander Villinger
- Institut für Chemie, Universität Rostock, Albert Einstein Str. 3a, 18059 Rostock, Germany
| | - Joanna Lecka
- Département de microbiologie-infectiologie et d'immunologie, Faculté de Médecine, Université Laval, Québec, QC, G1V 0A6, Canada.,Centre de Recherche du CHU de Québec - Université Laval, Québec, QC, G1V 4G2, Canada
| | - Jean Sévigny
- Département de microbiologie-infectiologie et d'immunologie, Faculté de Médecine, Université Laval, Québec, QC, G1V 0A6, Canada.,Centre de Recherche du CHU de Québec - Université Laval, Québec, QC, G1V 4G2, Canada
| | - Peter Ehlers
- Institut für Chemie, Universität Rostock, Albert Einstein Str. 3a, 18059 Rostock, Germany.,Leibniz-Institut für Katalyse an der Universität Rostock e.V., Albert Einstein Str. 29a, 18059 Rostock, Germany
| | - Jamshed Iqbal
- Centre for Advanced Drug Research, COMSATS University Islamabad, Abbottabad Campus, Abbottabad-22060, Pakistan
| | - Peter Langer
- Institut für Chemie, Universität Rostock, Albert Einstein Str. 3a, 18059 Rostock, Germany.,Leibniz-Institut für Katalyse an der Universität Rostock e.V., Albert Einstein Str. 29a, 18059 Rostock, Germany
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4
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Janke J, Ehlers P, Villinger A, Langer P. Regioselective Synthesis of Thieno[3,2-b
]quinolones by Acylation/Two-Fold Buchwald-Hartwig Reactions. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901247] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Julia Janke
- Institute of Chemistry; University Rostock; Albert-Einstein-Str. 3a 18059 Rostock Germany
| | - Peter Ehlers
- Institute of Chemistry; University Rostock; Albert-Einstein-Str. 3a 18059 Rostock Germany
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock; A.-Einstein-Str. 29a 18059 Rostock Germany
| | - Alexander Villinger
- Institute of Chemistry; University Rostock; Albert-Einstein-Str. 3a 18059 Rostock Germany
| | - Peter Langer
- Institute of Chemistry; University Rostock; Albert-Einstein-Str. 3a 18059 Rostock Germany
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock; A.-Einstein-Str. 29a 18059 Rostock Germany
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5
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Tasior M, Koszarna B, Young DC, Bernard B, Jacquemin D, Gryko D, Gryko DT. Fe(iii)-Catalyzed synthesis of pyrrolo[3,2-b]pyrroles: formation of new dyes and photophysical studies. Org Chem Front 2019. [DOI: 10.1039/c9qo00675c] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new method for the synthesis of 1,2,4,5-tetrarylpyrrolo[3,2-b]pyrroles has been developed employing iron(iii) perchlorate as a catalyst.
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Affiliation(s)
- Mariusz Tasior
- Institute of Organic Chemistry
- Polish Academy of Sciences
- 01-224 Warsaw
- Poland
| | - Beata Koszarna
- Institute of Organic Chemistry
- Polish Academy of Sciences
- 01-224 Warsaw
- Poland
| | - David C. Young
- Institute of Organic Chemistry
- Polish Academy of Sciences
- 01-224 Warsaw
- Poland
| | - Beata Bernard
- Institute of Organic Chemistry
- Polish Academy of Sciences
- 01-224 Warsaw
- Poland
| | - Denis Jacquemin
- CEISAM
- UMR CNRS 6230
- Université de Nantes
- 44322 Nantes Cedex 3
- France
| | - Dorota Gryko
- Institute of Organic Chemistry
- Polish Academy of Sciences
- 01-224 Warsaw
- Poland
| | - Daniel T. Gryko
- Institute of Organic Chemistry
- Polish Academy of Sciences
- 01-224 Warsaw
- Poland
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