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Szczepanik PM, Mikhaylov AA, Hylse O, Kučera R, Daďová P, Nečas M, Kubala L, Paruch K, Švenda J. Convergent Assembly of the Tricyclic Labdane Core Enables Synthesis of Diverse Forskolin-like Molecules. Angew Chem Int Ed Engl 2023; 62:e202213183. [PMID: 36321750 DOI: 10.1002/anie.202213183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Indexed: 11/06/2022]
Abstract
We report a new synthetic strategy for the flexible preparation of forskolin-like molecules. The approach is different from the previously published works and employs a convergent assembly of the tricyclic labdane-type core from pre-functionalized cyclic building blocks. Stereoselective Michael addition enabled the fragment coupling with excellent control over three newly created contiguous stereocenters, all-carbon quaternary centers included. Silyl enol ether-promoted ring-opening metathesis paired with ring closure were the other key steps enabling concise assembly of the tricyclic core. Late-stage functionalization sequences transformed the tricyclic intermediates into a set of different forskolin-like molecules. The modular nature of the synthetic scheme described herein has the potential to become a general platform for the preparation of analogs of forskolin and other complex tricyclic labdanes.
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Affiliation(s)
- Paweł M Szczepanik
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, Brno, 625 00, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Pekařská 53, Brno, 656 91, Czech Republic
| | - Andrey A Mikhaylov
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, Brno, 625 00, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Pekařská 53, Brno, 656 91, Czech Republic
| | - Ondřej Hylse
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, Brno, 625 00, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Pekařská 53, Brno, 656 91, Czech Republic
| | - Roman Kučera
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, Brno, 625 00, Czech Republic
| | - Petra Daďová
- Institute of Biophysics, Academy of Sciences of the Czech Republic, Královopolská 135, Brno, 612 65, Czech Republic.,Department of Experimental Biology, Faculty of Science, Masaryk University, Kamenice 5, Brno, 625 00, Czech Republic
| | - Marek Nečas
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, Brno, 625 00, Czech Republic
| | - Lukáš Kubala
- International Clinical Research Center, St. Anne's University Hospital, Pekařská 53, Brno, 656 91, Czech Republic.,Institute of Biophysics, Academy of Sciences of the Czech Republic, Královopolská 135, Brno, 612 65, Czech Republic.,Department of Experimental Biology, Faculty of Science, Masaryk University, Kamenice 5, Brno, 625 00, Czech Republic
| | - Kamil Paruch
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, Brno, 625 00, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Pekařská 53, Brno, 656 91, Czech Republic
| | - Jakub Švenda
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, Brno, 625 00, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Pekařská 53, Brno, 656 91, Czech Republic
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Voronin VV, Ledovskaya MS, Bogachenkov AS, Rodygin KS, Ananikov VP. Acetylene in Organic Synthesis: Recent Progress and New Uses. Molecules 2018; 23:E2442. [PMID: 30250005 PMCID: PMC6222752 DOI: 10.3390/molecules23102442] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 09/14/2018] [Accepted: 09/17/2018] [Indexed: 11/16/2022] Open
Abstract
Recent progress in the leading synthetic applications of acetylene is discussed from the prospect of rapid development and novel opportunities. A diversity of reactions involving the acetylene molecule to carry out vinylation processes, cross-coupling reactions, synthesis of substituted alkynes, preparation of heterocycles and the construction of a number of functionalized molecules with different levels of molecular complexity were recently studied. Of particular importance is the utilization of acetylene in the synthesis of pharmaceutical substances and drugs. The increasing interest in acetylene and its involvement in organic transformations highlights a fascinating renaissance of this simplest alkyne molecule.
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Affiliation(s)
- Vladimir V Voronin
- Institute of Chemistry, Saint Petersburg State University, Universitetsky prospect 26, Peterhof 198504, Russia.
| | - Maria S Ledovskaya
- Institute of Chemistry, Saint Petersburg State University, Universitetsky prospect 26, Peterhof 198504, Russia.
| | - Alexander S Bogachenkov
- Institute of Chemistry, Saint Petersburg State University, Universitetsky prospect 26, Peterhof 198504, Russia.
| | - Konstantin S Rodygin
- Institute of Chemistry, Saint Petersburg State University, Universitetsky prospect 26, Peterhof 198504, Russia.
| | - Valentine P Ananikov
- Institute of Chemistry, Saint Petersburg State University, Universitetsky prospect 26, Peterhof 198504, Russia.
- N. D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences, Leninsky prospect 47, Moscow 119991, Russia.
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