1
|
Kobatake M, Miyoshi N, Ueno M. One-Pot Tandem Coupling Method for the Short-Step Formal Synthesis of Riccardin C. Chemistry 2023; 29:e202203805. [PMID: 36573022 DOI: 10.1002/chem.202203805] [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: 12/06/2022] [Indexed: 12/28/2022]
Abstract
One-pot reactions reduce reagent amounts and circumvent process treatments, such as work-up and purifications in multi-step reactions. In this study, we achieved the formal total synthesis of riccardin C through a one-pot reaction by simultaneously linking four units through two Sonogashira coupling reactions and one Suzuki coupling reaction, followed by reduction and deprotection. Thus, this one-pot method comprised five steps and did not require the purification of intermediate reaction mixtures, which saves resources, such as reagents and solvents, and expedites the work process.
Collapse
Affiliation(s)
- Miho Kobatake
- Department of Natural Science, Graduate School of Sciences and Technology, Tokushima University, 2-1 Minami-jousanjima, Tokushima, 770-8506, Japan
| | - Norikazu Miyoshi
- Department of Natural Science, Graduate School of Sciences and Technology, Tokushima University, 2-1 Minami-jousanjima, Tokushima, 770-8506, Japan
| | - Masaharu Ueno
- Department of Natural Science, Graduate School of Sciences and Technology, Tokushima University, 2-1 Minami-jousanjima, Tokushima, 770-8506, Japan
| |
Collapse
|
2
|
Taylor CM, Kilah NL. Synthesis of [2+2] Schiff base macrocycles by a solvent templating strategy and halogen bonding directed assembly. J INCL PHENOM MACRO 2022. [DOI: 10.1007/s10847-022-01137-2] [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
AbstractSchiff base imine condensations are a useful tool for macrocycle synthesis and applications within supramolecular chemistry. Here we address the mixtures of products that can arise from template free synthesis using dicarbonylheterocycles and diamines, and look to develop metal-free template methods for selective macrocycle formation. A range of alkyl α,ω-diamines were combined with phenanthroline and pyridine heterocyclic dicarbaldehydes under standard literature conditions. The reaction conditions were modified to demonstrate a relationship between choice of solvent and product equilibria. It was observed that benzene and toluene could shift a mixture of products and unreacted starting materials to form predominantly one imine product for a number of systems. Once the macrocyclic products had been characterized in selected solvents, iodinated halogen bonding guest molecules were added to direct macrocycle assemblies using non-covalent interactions. Studies to investigate host – guest suitability and halogen bond interactions were conducted, and it was found that tetraiodoethylene had an influence on the formation of a phenanthroline based macrocycle. Proof of concept experiments were performed to show the influence of the guest molecule, tetraiodoethylene, on the macrocyclic products formed under competitive dynamic combinatorial chemistry conditions.
Collapse
|
3
|
Saridakis I, Kaiser D, Maulide N. Unconventional Macrocyclizations in Natural Product Synthesis. ACS CENTRAL SCIENCE 2020; 6:1869-1889. [PMID: 33274267 PMCID: PMC7706100 DOI: 10.1021/acscentsci.0c00599] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Indexed: 06/12/2023]
Abstract
Over the past several decades, macrocyclic compounds have emerged as increasingly significant therapeutic candidates in drug discovery. Their pharmacological activity hinges on their rotationally restricted three-dimensional orientation, resulting in a unique conformational preorganization and a high enthalpic gain as a consequence of high-affinity macrocycle-protein binding interactions. Synthetic access to macrocyclic drug candidates is therefore crucial. From a synthetic point of view, the efficiency of macrocyclization events commonly suffers from entropic penalties as well as undesired intermolecular couplings (oligomerization). Although over the past several decades ring-closing metathesis, macrolactonization, or macrolactamization have become strategies of choice, the toolbox of organic synthesis provides a great number of versatile transformations beyond the aforementioned. This Outlook focuses on a selection of examples employing what we term unconventional macrocyclizations toward the synthesis of natural products or analogues.
Collapse
Affiliation(s)
- Iakovos Saridakis
- Institute
of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria
| | - Daniel Kaiser
- Institute
of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria
| | - Nuno Maulide
- Institute
of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria
- Research
Platform for Next Generation Macrocycles, Währinger Strasse 38, 1090 Vienna, Austria
| |
Collapse
|
4
|
Donabauer K, Murugesan K, Rozman U, Crespi S, König B. Photocatalytic Reductive Radical-Polar Crossover for a Base-Free Corey-Seebach Reaction. Chemistry 2020; 26:12945-12950. [PMID: 32686166 PMCID: PMC7589390 DOI: 10.1002/chem.202003000] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 07/15/2020] [Indexed: 01/07/2023]
Abstract
A metal-free generation of carbanion nucleophiles is of prime importance in organic synthesis. Herein we report a photocatalytic approach to the Corey-Seebach reaction. The presented method operates under mild redox-neutral and base-free conditions giving the desired product with high functional group tolerance. The reaction is enabled by the combination of photo- and hydrogen atom transfer (HAT) catalysis. This catalytic merger allows a C-H to carbanion activation by the abstraction of a hydrogen atom followed by radical reduction. The generated nucleophilic intermediate is then capable of adding to carbonyl electrophiles. The obtained dithiane can be easily converted to the valuable α-hydroxy carbonyl in a subsequent step. The proposed reaction mechanism is supported by emission quenching, radical-radical homocoupling and deuterium labeling studies as well as by calculated redox-potentials and bond strengths.
Collapse
Affiliation(s)
- Karsten Donabauer
- Department of Organic ChemistryUniversity of RegensburgUniversitätsstraße 3193053RegensburgGermany
| | - Kathiravan Murugesan
- Department of Organic ChemistryUniversity of RegensburgUniversitätsstraße 3193053RegensburgGermany
| | - Urša Rozman
- Department of Organic ChemistryUniversity of RegensburgUniversitätsstraße 3193053RegensburgGermany
| | - Stefano Crespi
- Stratingh Institute for ChemistryUniversity of GroningenNijenborgh 49747 AGGroningenThe Netherlands
| | - Burkhard König
- Department of Organic ChemistryUniversity of RegensburgUniversitätsstraße 3193053RegensburgGermany
| |
Collapse
|
5
|
Almalki FA, Sun W, Light ME, Harrowven DC. Total synthesis of polymorphatin A, a macrocyclic bisbibenzyl with boat configured arenes. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
6
|
Kobayashi M, Ueno H, Yoshida N, Ouchi H, Asakawa T, Yoshimura F, Inai M, Kan T. Diastereodivergent and Regiodivergent Total Synthesis of Princepin and Isoprincepin in Both (7″R,8″R) and (7″S,8″S) Isomers. J Org Chem 2019; 84:14227-14240. [DOI: 10.1021/acs.joc.9b01965] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Manami Kobayashi
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Hiroya Ueno
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Naoto Yoshida
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Hitoshi Ouchi
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Tomohiro Asakawa
- Tokai University Institute of Innovative Science and Technology, 4-1-1, Kitakaname, Hiratsuka-city, Kanagawa 259-1292, Japan
| | - Fumihiko Yoshimura
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Makoto Inai
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Toshiyuki Kan
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| |
Collapse
|
7
|
Vendeville JB, Matters RF, Chen A, Light ME, Tizzard GJ, Chai CLL, Harrowven DC. A synthetic approach to chrysophaentin F. Chem Commun (Camb) 2019; 55:4837-4840. [DOI: 10.1039/c9cc01666j] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
A synthetic approach to chrysophaentin F is described featuring an array of metal catalysed coupling reactions (Cu, Ni, Pd, W, Mo).
Collapse
Affiliation(s)
- Jean-Baptiste Vendeville
- Chemistry, University of Southampton
- Highfield
- Southampton
- UK
- Institute of Chemical and Engineering Sciences
| | | | - Anqi Chen
- Institute of Chemical and Engineering Sciences
- Agency for Science
- Technology and Research (A*STAR)
- Singapore
| | - Mark E. Light
- Chemistry, University of Southampton
- Highfield
- Southampton
- UK
| | | | - Christina L. L. Chai
- Institute of Chemical and Engineering Sciences
- Agency for Science
- Technology and Research (A*STAR)
- Singapore
- Department of Pharmacy
| | | |
Collapse
|
8
|
Métoyer B, Lebouvier N, Hnawia E, Herbette G, Thouvenot L, Asakawa Y, Nour M, Raharivelomanana P. Chemotypes and Biomarkers of Seven Species of New Caledonian Liverworts from the Bazzanioideae Subfamily. Molecules 2018; 23:E1353. [PMID: 29874780 PMCID: PMC6100190 DOI: 10.3390/molecules23061353] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 05/30/2018] [Accepted: 05/31/2018] [Indexed: 12/26/2022] Open
Abstract
Volatile components of seven species of the Bazzanioideae sub-family (Lepidoziaceae) native to New Caledonia, including three endemic species (Bazzania marginata, Acromastigum caledonicum and A. tenax), were analyzed by GC-FID-MS in order to index these plants to known or new chemotypes. Detected volatile constituents in studied species were constituted mainly by sesquiterpene, as well as diterpene compounds. All so-established compositions cannot successfully index some of them to known chemotypes but afforded the discovery of new chemotypes such as cuparane/fusicoccane. The major component of B. francana was isolated and characterized as a new zierane-type sesquiterpene called ziera-12(13),10(14)-dien-5-ol (23). In addition, qualitative intraspecies variations of chemical composition were very important particularly for B. francana which possessed three clearly defined different compositions. We report here also the first phytochemical investigation of Acromastigum species. Moreover, crude diethyl ether extract of B. vitatta afforded a new bis(bibenzyl) called vittatin (51), for which a putative biosynthesis was suggested.
Collapse
Affiliation(s)
- Benjamin Métoyer
- Institut des Sciences Exactes et Appliquées (ISEA) EA 7484, Université de la Nouvelle-Calédonie, 98851 Nouméa, New Caledonia.
| | - Nicolas Lebouvier
- Institut des Sciences Exactes et Appliquées (ISEA) EA 7484, Université de la Nouvelle-Calédonie, 98851 Nouméa, New Caledonia.
| | - Edouard Hnawia
- Institut des Sciences Exactes et Appliquées (ISEA) EA 7484, Université de la Nouvelle-Calédonie, 98851 Nouméa, New Caledonia.
| | - Gaëtan Herbette
- Aix Marseille Univ, CNRS, Centrale Marseille, FSCM, Spectropole, Service 511, Campus Saint-Jérome, 13397 Marseille CEDEX 20, France.
| | - Louis Thouvenot
- Independent Researcher, 11, Rue Saint-Léon, 66000 Perpignan, France.
| | - Yoshinori Asakawa
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima 7708514, Japan.
| | - Mohammed Nour
- Institut des Sciences Exactes et Appliquées (ISEA) EA 7484, Université de la Nouvelle-Calédonie, 98851 Nouméa, New Caledonia.
| | - Phila Raharivelomanana
- UMR 241 EIO, Université de la Polynésie Française, 98702 Faaa, Tahiti, French Polynesia.
| |
Collapse
|
9
|
Yamada T, Takiguchi H, Ohmori K, Suzuki K. Total Syntheses of Pusilatins A–C, Liverwort-Derived Macrocyclic Bisbibenzyl Dimers. Org Lett 2018; 20:3579-3582. [DOI: 10.1021/acs.orglett.8b01366] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Takahiro Yamada
- Department of Chemistry, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Hiromu Takiguchi
- Department of Chemistry, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Ken Ohmori
- Department of Chemistry, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Keisuke Suzuki
- Department of Chemistry, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8551, Japan
| |
Collapse
|
10
|
Vale JR, Rimpiläinen T, Sievänen E, Rissanen K, Afonso CAM, Candeias NR. Pot-Economy Autooxidative Condensation of 2-Aryl-2-lithio-1,3-dithianes. J Org Chem 2018; 83:1948-1958. [PMID: 29334462 PMCID: PMC6150673 DOI: 10.1021/acs.joc.7b02896] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The autoxidative condensation of 2-aryl-2-lithio-1,3-dithianes is here reported. Treatment of 2-aryl-1,3-dithianes with n-BuLi in the absence of any electrophile leads to condensation of three molecules of 1,3-dithianes and formation of highly functionalized α-thioether ketones orthothioesters in 51-89% yields upon air exposure. The method was further expanded to benzaldehyde dithioacetals, affording corresponding orthothioesters and α-thioether ketones in 48-97% yields. The experimental results combined with density functional theory studies support a mechanism triggered by the autoxidation of 2-aryl-2-lithio-1,3-dithianes to yield a highly reactive thioester that undergoes condensation with two other molecules of 2-aryl-2-lithio-1,3-dithiane.
Collapse
Affiliation(s)
- João R Vale
- Laboratory of Chemistry and Bioengineering, Tampere University of Technology , Korkeakoulunkatu 8, 33101 Tampere, Finland.,Instituto de Investigação do Medicamento (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa , Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Tatu Rimpiläinen
- Laboratory of Chemistry and Bioengineering, Tampere University of Technology , Korkeakoulunkatu 8, 33101 Tampere, Finland
| | - Elina Sievänen
- University of Jyvaskyla , Department of Chemistry, Nanoscience Center, P.O. Box 35, 40014 Jyväskylä, Finland
| | - Kari Rissanen
- University of Jyvaskyla , Department of Chemistry, Nanoscience Center, P.O. Box 35, 40014 Jyväskylä, Finland
| | - Carlos A M Afonso
- Instituto de Investigação do Medicamento (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa , Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Nuno R Candeias
- Laboratory of Chemistry and Bioengineering, Tampere University of Technology , Korkeakoulunkatu 8, 33101 Tampere, Finland
| |
Collapse
|