1
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Govada GV, Sabbasani RR. A new outlook in oxidative transformations and coupling reactions via in situ generation of organic chloramines. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6518] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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2
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Schneider P, Henßen B, Paschold B, Chapple BP, Schatton M, Seebeck FP, Classen T, Pietruszka J. Biocatalytic C3-Indole Methylation-A Useful Tool for the Natural-Product-Inspired Stereoselective Synthesis of Pyrroloindoles. Angew Chem Int Ed Engl 2021; 60:23412-23418. [PMID: 34399441 PMCID: PMC8596708 DOI: 10.1002/anie.202107619] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 07/28/2021] [Indexed: 01/11/2023]
Abstract
Enantioselective synthesis of bioactive compounds bearing a pyrroloindole framework is often laborious. In contrast, there are several S-adenosyl methionine (SAM)-dependent methyl transferases known for stereo- and regioselective methylation at the C3 position of various indoles, directly leading to the formation of the desired pyrroloindole moiety. Herein, the SAM-dependent methyl transferase PsmD from Streptomyces griseofuscus, a key enzyme in the biosynthesis of physostigmine, is characterized in detail. The biochemical properties of PsmD and its substrate scope were demonstrated. Preparative scale enzymatic methylation including SAM regeneration was achieved for three selected substrates after a design-of-experiment optimization.
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Affiliation(s)
- Pascal Schneider
- Institut für Bioorganische ChemieHeinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich and Bioeconomy Science Center (BioSC)Stetternicher Forst, Geb. 15.852426JülichGermany
| | - Birgit Henßen
- Institut für Bio- und Geowissenschaften: Biotechnologie (IBG-1)Forschungszentrum Jülich GmbH52428JülichGermany
| | - Beatrix Paschold
- Institut für Bioorganische ChemieHeinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich and Bioeconomy Science Center (BioSC)Stetternicher Forst, Geb. 15.852426JülichGermany
| | - Benjamin P. Chapple
- Institut für Bioorganische ChemieHeinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich and Bioeconomy Science Center (BioSC)Stetternicher Forst, Geb. 15.852426JülichGermany
| | - Marcel Schatton
- Institut für Bioorganische ChemieHeinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich and Bioeconomy Science Center (BioSC)Stetternicher Forst, Geb. 15.852426JülichGermany
| | - Florian P. Seebeck
- Department of ChemistryUniversity of BaselMattenstrasse 24aCH-4058BaselSwitzerland
| | - Thomas Classen
- Institut für Bio- und Geowissenschaften: Biotechnologie (IBG-1)Forschungszentrum Jülich GmbH52428JülichGermany
| | - Jörg Pietruszka
- Institut für Bioorganische ChemieHeinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich and Bioeconomy Science Center (BioSC)Stetternicher Forst, Geb. 15.852426JülichGermany
- Institut für Bio- und Geowissenschaften: Biotechnologie (IBG-1)Forschungszentrum Jülich GmbH52428JülichGermany
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3
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Schneider P, Henßen B, Paschold B, Chapple BP, Schatton M, Seebeck FP, Classen T, Pietruszka J. Biokatalytische C3‐Indol‐Methylierung – ein nützliches Werkzeug für die naturstoffinspirierte stereoselektive Synthese von Pyrroloindolen. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202107619] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Pascal Schneider
- Institut für Bioorganische Chemie Heinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich und Bioeconomy Science Center (BioSC) Stetternicher Forst, Geb. 15.8 52426 Jülich Deutschland
| | - Birgit Henßen
- Institut für Bio- und Geowissenschaften: Biotechnologie (IBG-1) Forschungszentrum Jülich GmbH 52428 Jülich Deutschland
| | - Beatrix Paschold
- Institut für Bioorganische Chemie Heinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich und Bioeconomy Science Center (BioSC) Stetternicher Forst, Geb. 15.8 52426 Jülich Deutschland
| | - Benjamin P. Chapple
- Institut für Bioorganische Chemie Heinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich und Bioeconomy Science Center (BioSC) Stetternicher Forst, Geb. 15.8 52426 Jülich Deutschland
| | - Marcel Schatton
- Institut für Bioorganische Chemie Heinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich und Bioeconomy Science Center (BioSC) Stetternicher Forst, Geb. 15.8 52426 Jülich Deutschland
| | - Florian P. Seebeck
- Department of Chemistry University of Basel Mattenstrasse 24a 4058 Basel Schweiz
| | - Thomas Classen
- Institut für Bio- und Geowissenschaften: Biotechnologie (IBG-1) Forschungszentrum Jülich GmbH 52428 Jülich Deutschland
| | - Jörg Pietruszka
- Institut für Bioorganische Chemie Heinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich und Bioeconomy Science Center (BioSC) Stetternicher Forst, Geb. 15.8 52426 Jülich Deutschland
- Institut für Bio- und Geowissenschaften: Biotechnologie (IBG-1) Forschungszentrum Jülich GmbH 52428 Jülich Deutschland
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4
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Xiao X, Chen XH, Wang XX, Wu FY, Cui HL. NBS-mediated synthesis of bromodihydroindolizino[8,7-b]indole derivatives. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153255] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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5
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Grace Victoria G, Rajasekhara Reddy S. Recent advances in the synthesis of organic chloramines and their insights into health care. NEW J CHEM 2021. [DOI: 10.1039/d1nj01086g] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Organic nitrogen–chlorine compounds and their derivatives are important heterocyclic motifs, exhibiting applications such as N-chlorinating agents, analytical reagents, disinfectants, antipathogens, and as synthetic intermediates for drugs, polymers, and natural products.
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Affiliation(s)
- G. Grace Victoria
- Department of Chemistry
- Vellore Institute of Technology (VIT)
- Vellore 632014
- India
- Department of Chemistry
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6
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Hasenbeck M, Ahles S, Averdunk A, Becker J, Gellrich U. Die Bildung nukleophiler Allylborane aus molekularem Wasserstoff und Allenen katalysiert durch ein Pyridonatboran, das die Reaktivität eines frustrierten Lewis‐Paares zeigt. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202011790] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Max Hasenbeck
- Institut für Organische Chemie Justus-Liebig-Universität Gießen Heinrich-Buff-Ring 17 35392 Gießen Deutschland
| | - Sebastian Ahles
- Institut für Organische Chemie Justus-Liebig-Universität Gießen Heinrich-Buff-Ring 17 35392 Gießen Deutschland
| | - Arthur Averdunk
- Institut für Organische Chemie Justus-Liebig-Universität Gießen Heinrich-Buff-Ring 17 35392 Gießen Deutschland
| | - Jonathan Becker
- Institut für Anorganische und Analytische Chemie Justus-Liebig-Universität Gießen Heinrich-Buff-Ring 17 35392 Gießen Deutschland
| | - Urs Gellrich
- Institut für Organische Chemie Justus-Liebig-Universität Gießen Heinrich-Buff-Ring 17 35392 Gießen Deutschland
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7
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Hasenbeck M, Ahles S, Averdunk A, Becker J, Gellrich U. Formation of Nucleophilic Allylboranes from Molecular Hydrogen and Allenes Catalyzed by a Pyridonate Borane that Displays Frustrated Lewis Pair Reactivity. Angew Chem Int Ed Engl 2020; 59:23885-23891. [PMID: 32926511 PMCID: PMC7814673 DOI: 10.1002/anie.202011790] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Indexed: 11/05/2022]
Abstract
Here we report the in situ generation of nucleophilic allylboranes from H2 and allenes mediated by a pyridonate borane that displays frustrated‐Lewis‐pair reactivity. Experimental and computational mechanistic investigations reveal that upon H2 activation, the covalently bound pyridonate substituent becomes a datively bound pyridone ligand. Dissociation of the formed pyridone borane complex liberates Piers borane and enables a hydroboration of the allene. The allylboranes generated in this way are reactive towards nitriles. A catalytic protocol for the formation of allylboranes from H2 and allenes and the allylation of nitriles has been devised. This catalytic reaction is a conceptually new way to use molecular H2 in organic synthesis.
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Affiliation(s)
- Max Hasenbeck
- Institut für Organische Chemie, Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 17, 35392, Gießen, Germany
| | - Sebastian Ahles
- Institut für Organische Chemie, Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 17, 35392, Gießen, Germany
| | - Arthur Averdunk
- Institut für Organische Chemie, Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 17, 35392, Gießen, Germany
| | - Jonathan Becker
- Institut für Anorganische und Analytische Chemie, Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 17, 35392, Gießen, Germany
| | - Urs Gellrich
- Institut für Organische Chemie, Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 17, 35392, Gießen, Germany
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8
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Melander RJ, Basak AK, Melander C. Natural products as inspiration for the development of bacterial antibiofilm agents. Nat Prod Rep 2020; 37:1454-1477. [PMID: 32608431 PMCID: PMC7677205 DOI: 10.1039/d0np00022a] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Natural products have historically been a rich source of diverse chemical matter with numerous biological activities, and have played an important role in drug discovery in many areas including infectious disease. Synthetic and medicinal chemistry have been, and continue to be, important tools to realize the potential of natural products as therapeutics and as chemical probes. The formation of biofilms by bacteria in an infection setting is a significant factor in the recalcitrance of many bacterial infections, conferring increased tolerance to many antibiotics and to the host immune response, and as yet there are no approved therapeutics for combatting biofilm-based bacterial infections. Small molecules that interfere with the ability of bacteria to form and maintain biofilms can overcome antibiotic tolerance conferred by the biofilm phenotype, and have the potential to form combination therapies with conventional antibiotics. Many natural products with anti-biofilm activity have been identified from plants, microbes, and marine life, including: elligic acid glycosides, hamamelitannin, carolacton, skyllamycins, promysalin, phenazines, bromoageliferin, flustramine C, meridianin D, and brominated furanones. Total synthesis and medicinal chemistry programs have facilitated structure confirmation, identification of critical structural motifs, better understanding of mechanistic pathways, and the development of more potent, more accessible, or more pharmacologically favorable derivatives of anti-biofilm natural products.
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Affiliation(s)
- Roberta J Melander
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA.
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9
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Almeida MC, Resende DISP, da Costa PM, Pinto MMM, Sousa E. Tryptophan derived natural marine alkaloids and synthetic derivatives as promising antimicrobial agents. Eur J Med Chem 2020; 209:112945. [PMID: 33153766 DOI: 10.1016/j.ejmech.2020.112945] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 10/01/2020] [Accepted: 10/13/2020] [Indexed: 02/03/2023]
Abstract
Antimicrobial resistance has become a major threat to public health worldwide, as pathogenic microorganisms are finding ways to evade all known antimicrobials. Therefore, the demand for new and effective antimicrobial agents is also increasing. Natural products have always played an important role in drug discovery, either by themselves or as inspiration for synthetic compounds. The marine environment is a rich source of bioactive metabolites, and among them, tryptophan-derived alkaloids stand out for their abundance and by displaying a variety of biological activities, with antimicrobial properties being among the most significant. This review aims to reveal the potential of marine alkaloids derived from tryptophan as antimicrobial agents. Relevant examples of these compounds and their synthetic analogues reported in the last decades are presented and discussed in detail, with their mechanism of action and synthetic approaches whenever relevant. Several tryptophan-derived marine alkaloids have shown potent and promising antimicrobial activities, whether against bacteria, fungi, or virus. Synthetic approaches to many of the compounds have been developed and recent methodologies are proving to be efficient. Even though most of the studies regarding the antimicrobial activity are still preliminary, this class of compounds has proven to be worth of further investigation and may provide useful lead compounds for the development of antimicrobial agents. Overall, marine alkaloids derived from tryptophan are revealed as a valuable class of antimicrobials and molecular modifications in order to reduce the toxicity of these compounds and additional studies regarding their mechanism of action are interesting topics to explore in the future.
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Affiliation(s)
- Mariana C Almeida
- Laboratório de Química Orgânica e Farmacêutica, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313, Porto, Portugal; CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros do Porto de Leixões, 4450-208, Matosinhos, Portugal
| | - Diana I S P Resende
- Laboratório de Química Orgânica e Farmacêutica, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313, Porto, Portugal; CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros do Porto de Leixões, 4450-208, Matosinhos, Portugal.
| | - Paulo M da Costa
- CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros do Porto de Leixões, 4450-208, Matosinhos, Portugal; ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313, Porto, Portugal
| | - Madalena M M Pinto
- Laboratório de Química Orgânica e Farmacêutica, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313, Porto, Portugal; CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros do Porto de Leixões, 4450-208, Matosinhos, Portugal
| | - Emília Sousa
- Laboratório de Química Orgânica e Farmacêutica, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313, Porto, Portugal; CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros do Porto de Leixões, 4450-208, Matosinhos, Portugal
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10
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Outin J, Quellier P, Bélanger G. Sequential One-Pot Vilsmeier-Haack and Organocatalyzed Mannich Cyclizations to Functionalized Benzoindolizidines and Benzoquinolizidines. J Org Chem 2020; 85:4712-4729. [PMID: 32189502 DOI: 10.1021/acs.joc.9b03449] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The development of new one-pot sequential cyclizations involving a Vilsmeier-Haack reaction followed by an organocatalyzed Mannich reaction is reported. This synthetic strategy gives access to functionalized indolizidines and quinolizidines in one operation from readily synthesized precursors. Yields and diastereoselectivities are good to excellent when formamides are used to trigger the key step, bearing either an electron-rich aryl or a pyrrole as the nucleophilic partner in the first cyclization.
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Affiliation(s)
- Johanne Outin
- Département de Chimie, Université de Sherbrooke, 2500 boulevard Université, Sherbrooke, Québec J1K 2R1, Canada
| | - Pauline Quellier
- Département de Chimie, Université de Sherbrooke, 2500 boulevard Université, Sherbrooke, Québec J1K 2R1, Canada
| | - Guillaume Bélanger
- Département de Chimie, Université de Sherbrooke, 2500 boulevard Université, Sherbrooke, Québec J1K 2R1, Canada
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11
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Wilkerson JL, Deba F, Crowley ML, Hamouda AK, McMahon LR. Advances in the In vitro and In vivo pharmacology of Alpha4beta2 nicotinic receptor positive allosteric modulators. Neuropharmacology 2020; 168:108008. [PMID: 32113032 DOI: 10.1016/j.neuropharm.2020.108008] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 02/08/2020] [Accepted: 02/11/2020] [Indexed: 11/29/2022]
Abstract
Receptors containing α4 and β2 subunits are a major neuronal nicotinic acetylcholine receptor (nAChR) subtype in the brain. This receptor plays a critical role in nicotine addiction, with potential smoking cessation therapeutics producing modulation of α4β2 nAChR. In addition, compounds that act as agonists at α4β2 nAChR may be useful for the treatment of pathological pain. Further, as the α4β2 nAChR has been implicated in cognition, therapeutics that act as α4β2 nAChR agonists are also being examined as treatments for cognitive disorders and neurological diseases that impact cognitive function, such as Alzheimer's disease and schizophrenia. This review will cover the molecular in vitro evidence that allosteric modulators of the α4β2 neuronal nAChR provide several advantages over traditional α4β2 nAChR orthosteric ligands. Specifically, we explore the concept that nAChR allosteric modulators allow for greater pharmacological selectivity, while minimizing potential deleterious off-target effects. Further, here we discuss the development and preclinical in vivo behavioral assessment of allosteric modulators at the α4β2 neuronal nAChR as therapeutics for smoking cessation, pathological pain, as well as cognitive disorders and neurological diseases that impact cognitive function. This article is part of the special issue on 'Contemporary Advances in Nicotine Neuropharmacology'.
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Affiliation(s)
- Jenny L Wilkerson
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL, 32610, United States.
| | - Farah Deba
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Texas at Tyler, Tyler, TX, 75799, United States
| | - Morgan L Crowley
- Department of Medicinal Chemistry, College of Pharmacy, University of Florida, Gainesville, FL, 32610, United States
| | - Ayman K Hamouda
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Texas at Tyler, Tyler, TX, 75799, United States.
| | - Lance R McMahon
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL, 32610, United States.
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12
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Han H, Yang SD, Xia JB. Pd/Cu Cocatalyzed Oxidative Tandem C-H Aminocarbonylation and Dehydrogenation of Tryptamines: Synthesis of Carbolinones. J Org Chem 2019; 84:3357-3369. [PMID: 30793907 DOI: 10.1021/acs.joc.8b03266] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The Pd/Cu cocatalyzed oxidative tandem C-H aminocarbonylation and dehydrogenation was developed, affording carbolinones with molecular oxygen as the terminal oxidant. Natural product strychnocarpine and its derivatives were prepared conveniently using this strategy.
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Affiliation(s)
- Hui Han
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP) , University of Chinese Academy of Sciences, Chinese Academy of Sciences , Lanzhou 730000 , China.,State Key Laboratory of Applied Organic Chemistry , Lanzhou University , Lanzhou 730000 , China
| | - Shang-Dong Yang
- State Key Laboratory of Applied Organic Chemistry , Lanzhou University , Lanzhou 730000 , China
| | - Ji-Bao Xia
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP) , University of Chinese Academy of Sciences, Chinese Academy of Sciences , Lanzhou 730000 , China.,Key Laboratory of Organic Synthesis of Jiangsu Province , Suzhou 215123 , China
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13
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Gupta GR, Shah J, Vadagaonkar KS, Lavekar AG, Kapdi AR. Hetero-bimetallic cooperative catalysis for the synthesis of heteroarenes. Org Biomol Chem 2019; 17:7596-7631. [DOI: 10.1039/c9ob01152h] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Review covering the synthesis of 5- and 6-membered as well as condensed heteroarenes, focussing on the combinations in cooperative catalytic systems in strategies used to achieve selectivity and also highlights the mode of action for the cooperative catalysis leading to the synthesis of commercially and biologically relevant heteroarenes.
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Affiliation(s)
- Gaurav R. Gupta
- Department of Chemistry
- Institute of Chemical Technology
- Mumbai-400019
- India
| | - Jagrut Shah
- Department of Chemistry
- Institute of Chemical Technology
- Mumbai-400019
- India
| | | | - Aditya G. Lavekar
- Former Research Fellow
- Medicinal and Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow-226031
- India
| | - Anant R. Kapdi
- Department of Chemistry
- Institute of Chemical Technology
- Mumbai-400019
- India
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14
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Li Y, Li L, Lu X, Bai Y, Wang Y, Wu Y, Zhong F. Bioinspired radical cyclization of tryptamines: synthesis of peroxypyrroloindolenines as potential anti-cancer agents. Chem Commun (Camb) 2019; 55:63-66. [DOI: 10.1039/c8cc08866g] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Inspired by the heme iron-catalyzed radical insertion of dioxygen to the tryptophan indole ring, herein we utilize alkylperoxy radical species as a coupling partner to trigger a peroxycyclization of readily accessible tryptophan derivatives and enable the first synthesis of peroxypyrroloindolenines.
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Affiliation(s)
- Yan Li
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
- Wuhan 430074
- China
| | - Longjie Li
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
- Wuhan 430074
- China
| | - Xunbo Lu
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
- Wuhan 430074
- China
| | - Yulong Bai
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
- Wuhan 430074
- China
| | - Yufan Wang
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
- Wuhan 430074
- China
| | - Yuzhou Wu
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
- Wuhan 430074
- China
| | - Fangrui Zhong
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
- Wuhan 430074
- China
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15
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Dukat M, Jain A, German N, Ferrara-Pontoriero R, Huang Y, Ma Y, Schulte MK, Glennon RA. des-Formylflustrabromine (dFBr): A Structure-Activity Study on Its Ability To Potentiate the Action of Acetylcholine at α4β2 Nicotinic Acetylcholine Receptors. ACS Chem Neurosci 2018; 9:2984-2996. [PMID: 30028943 DOI: 10.1021/acschemneuro.8b00156] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The naturally occurring indole alkaloid des-formylflustrabromine (dFBr; 1) is one of the first agents shown to act as a selective positive allosteric modulator (PAM) at α4β2 nicotinic acetylcholine receptors (nAChRs). We previously deconstructed this agent to determine which of its structural features contribute to its actions and have identified an agent that might serve as the basis for a " working pharmacophore". Here, we elaborate the dFBr (1; EC50 = 0.2 μM) structure to identify how various structural modifications impact its actions. Electrophysiological studies with Xenopus laevis oocytes identified several compounds with dFBr-like potency and one, the 5-bromo analogue of 1 (i.e., 5-bromo dFBr; 25; EC50 = 0.4 μM), with more than twice the efficacy of 1 as a PAM at α4β2 nAChRs.
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Affiliation(s)
- Małgorzata Dukat
- Department of Medicinal Chemistry, School of Pharmacy, Virginia Commonwealth University, Richmond, Virginia 23298-0540, United States
| | - Atul Jain
- Department of Medicinal Chemistry, School of Pharmacy, Virginia Commonwealth University, Richmond, Virginia 23298-0540, United States
| | - Nadezhda German
- Department of Medicinal Chemistry, School of Pharmacy, Virginia Commonwealth University, Richmond, Virginia 23298-0540, United States
| | - Rossana Ferrara-Pontoriero
- Department of Medicinal Chemistry, School of Pharmacy, Virginia Commonwealth University, Richmond, Virginia 23298-0540, United States
| | - Yanzhou Huang
- Department of Pharmaceutical Sciences, Philadelphia College of Pharmacy, University of the Sciences, 600 S 43rd Street, Philadelphia, Pennsylvania 19104-4495, United States
| | - Yilong Ma
- Institute of Arctic Biology, Department of Biology and Wildlife, University of Alaska Fairbanks, Fairbanks, Alaska 99775-7000, United States
| | - Marvin K. Schulte
- Department of Pharmaceutical Sciences, Philadelphia College of Pharmacy, University of the Sciences, 600 S 43rd Street, Philadelphia, Pennsylvania 19104-4495, United States
| | - Richard A. Glennon
- Department of Medicinal Chemistry, School of Pharmacy, Virginia Commonwealth University, Richmond, Virginia 23298-0540, United States
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16
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Wu K, Du Y, Wang T. Visible-Light-Mediated Construction of Pyrroloindolines via an Amidyl Radical Cyclization/Carbon Radical Addition Cascade: Rapid Synthesis of (±)-Flustramide B. Org Lett 2017; 19:5669-5672. [DOI: 10.1021/acs.orglett.7b02837] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kui Wu
- Department of Chemistry, University at Albany, State University of New York, 1400 Washington Avenue, Albany, New York 12222, United States
| | - Yuliu Du
- Department of Chemistry, University at Albany, State University of New York, 1400 Washington Avenue, Albany, New York 12222, United States
| | - Ting Wang
- Department of Chemistry, University at Albany, State University of New York, 1400 Washington Avenue, Albany, New York 12222, United States
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17
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Dual cobalt(II)/silver catalysis: synthesis of aryliminated pyrrolo[2,3-b]indoles via multicomponent bicyclization cascades. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.09.046] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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18
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Zhu PL, Tang XY, Shi M. Intramolecular cyclizations of cyclopropenes with indole. Chem Commun (Camb) 2016; 52:7245-8. [DOI: 10.1039/c6cc02226j] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel intramolecular cycloisomerizations of nitrogen-tethered cyclopropenes with indole in the presence of Brønsted acids have been presented.
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Affiliation(s)
- Peng-Long Zhu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai
- China
| | - Xiang-Ying Tang
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
| | - Min Shi
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai
- China
- State Key Laboratory of Organometallic Chemistry
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19
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Suetsugu S, Tsukano C, Takemoto Y. Synthetic Studies towards Communesins: Diastereoselective Oxidative Rearrangement of Aurantioclavine Derivatives. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501194] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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20
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Marsch N, Jones PG, Lindel T. SmI2-mediated dimerization of indolylbutenones and synthesis of the myxobacterial natural product indiacen B. Beilstein J Org Chem 2015; 11:1700-6. [PMID: 26664588 PMCID: PMC4660955 DOI: 10.3762/bjoc.11.184] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Accepted: 08/31/2015] [Indexed: 01/14/2023] Open
Abstract
The synthesis and reactivity of indole derivatives substituted in the benzene section was studied. Starting materials 4- and 6-iodoindole were conveniently prepared via the Batcho–Leimgruber route and purified by sublimation. Novel vicinally indolyl-substituted cyclopentanols with unexpected cis-configuration were formed by SmI2-mediated reductive dimerization of a 4-(indol-6-yl)butenone, obtained by Heck reaction. The two indolyl units appear to chelate Sm(II)/(III) leading to a gauche-type arrangement at the newly formed bond between the two β-carbons. Through a sequence of Sonogashira cross coupling and Meyer–Schuster rearrangement 6-prenoylindole was synthesized and reductively dimerized to a cyclopentane in a [3 + 2] cycloaddition by treatment with SmI2 in THF. From 4-iodoindole, the natural product indiacen B from the myxobacterium Sandaracinus amylolyticus was synthesized for the first time, confirming its antimicrobial activity. The E-configuration of the chloroalkene moiety of indiacen B was confirmed by X-ray analysis.
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Affiliation(s)
- Nils Marsch
- Institute of Organic Chemistry, TU Braunschweig, Hagenring 30, 38106 Braunschweig, Germany,
| | - Peter G Jones
- Institute of Inorganic and Analytical Chemistry, TU Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Thomas Lindel
- Institute of Organic Chemistry, TU Braunschweig, Hagenring 30, 38106 Braunschweig, Germany,
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21
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22
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Gao Q, Zhou P, Liu F, Hao WJ, Yao C, Jiang B, Tu SJ. Cobalt(ii)/silver relay catalytic isocyanide insertion/cycloaddition cascades: a new access to pyrrolo[2,3-b]indoles. Chem Commun (Camb) 2015; 51:9519-22. [DOI: 10.1039/c5cc02754c] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The combination of Co(acac)2 and AgOTf enables the bimetallic relay catalysis reaction of 2-ethynylanilines and isocyanides, allowing an easy and low-cost access to new densely functionalized pyrrolo[2,3-b]indoles.
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Affiliation(s)
- Qian Gao
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Peng Zhou
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Feng Liu
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Wen-Juan Hao
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Changsheng Yao
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Bo Jiang
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Shu-Jiang Tu
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- P. R. China
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23
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Denizot N, Pouilhès A, Cucca M, Beaud R, Guillot R, Kouklovsky C, Vincent G. Bioinspired Direct Access to Benzofuroindolines by Oxidative [3 + 2] Annulation of Phenols and Indoles. Org Lett 2014; 16:5752-5. [DOI: 10.1021/ol502820p] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Natacha Denizot
- Univ Paris Sud and CNRS, Institut de Chimie Moléculaire et des Matériaux d’Orsay (ICMMO), UMR8182, Equipe Méthodologie - Synthèse & Molécules Thérapeutiques (MS&MT), Bat. 410, 91405, Orsay, France
| | - Annie Pouilhès
- Univ Paris Sud and CNRS, Institut de Chimie Moléculaire et des Matériaux d’Orsay (ICMMO), UMR8182, Equipe Méthodologie - Synthèse & Molécules Thérapeutiques (MS&MT), Bat. 410, 91405, Orsay, France
| | - Mélissa Cucca
- Univ Paris Sud and CNRS, Institut de Chimie Moléculaire et des Matériaux d’Orsay (ICMMO), UMR8182, Equipe Méthodologie - Synthèse & Molécules Thérapeutiques (MS&MT), Bat. 410, 91405, Orsay, France
| | - Rodolphe Beaud
- Univ Paris Sud and CNRS, Institut de Chimie Moléculaire et des Matériaux d’Orsay (ICMMO), UMR8182, Equipe Méthodologie - Synthèse & Molécules Thérapeutiques (MS&MT), Bat. 410, 91405, Orsay, France
| | - Régis Guillot
- Univ Paris Sud and CNRS, Institut de Chimie Moléculaire et des Matériaux d’Orsay (ICMMO), UMR8182, Equipe Méthodologie - Synthèse & Molécules Thérapeutiques (MS&MT), Bat. 410, 91405, Orsay, France
| | - Cyrille Kouklovsky
- Univ Paris Sud and CNRS, Institut de Chimie Moléculaire et des Matériaux d’Orsay (ICMMO), UMR8182, Equipe Méthodologie - Synthèse & Molécules Thérapeutiques (MS&MT), Bat. 410, 91405, Orsay, France
| | - Guillaume Vincent
- Univ Paris Sud and CNRS, Institut de Chimie Moléculaire et des Matériaux d’Orsay (ICMMO), UMR8182, Equipe Méthodologie - Synthèse & Molécules Thérapeutiques (MS&MT), Bat. 410, 91405, Orsay, France
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Melander RJ, Minvielle MJ, Melander C. Controlling bacterial behavior with indole-containing natural products and derivatives. Tetrahedron 2014; 70:6363-6372. [PMID: 25267859 PMCID: PMC4175420 DOI: 10.1016/j.tet.2014.05.089] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Indole has recently been implicated as an important small molecule signal utilized by many bacteria to coordinate various forms of behavior. Indole plays a role in numerous bacterial processes, including: biofilm formation and maintenance, virulence factor production, antibiotic resistance and persister cell formation. Intercepting indole-signaling pathways with appropriately designed small molecules provides a n opportunity to control unwanted bacterial behaviors, and is an attractive anti-virulence therapeutic strategy. In this review, we give an overview of the process controlled by indole signaling, and summarize current efforts to design indole-containing small molecules to intercept these pathways, and detail the synthetic efforts towards accessing indole derived bioactive small molecules.
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Affiliation(s)
- Roberta J. Melander
- Department of Chemistry, North Carolina State University, Raleigh, NC, 27695
| | - Marine J. Minvielle
- Department of Chemistry, North Carolina State University, Raleigh, NC, 27695
| | - Christian Melander
- Department of Chemistry, North Carolina State University, Raleigh, NC, 27695
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25
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Minvielle MJ, Eguren K, Melander C. Highly active modulators of indole signaling alter pathogenic behaviors in Gram-negative and Gram-positive bacteria. Chemistry 2013; 19:17595-602. [PMID: 24243627 PMCID: PMC5798242 DOI: 10.1002/chem.201303510] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2013] [Indexed: 11/09/2022]
Abstract
Indole is a universal signal that regulates various bacterial behaviors, such as biofilm formation and antibiotic resistance. To generate mechanistic probes of indole signaling and control indole-mediated pathogenic phenotypes in both Gram-positive and Gram-negative bacteria, we have investigated the use of desformylflustrabromine (dFBr) derivatives to generate highly active indole mimetics. We have developed non-microbicidal dFBr derivatives that are 27-2000 times more active than indole in modulating biofilm formation, motility, acid resistance, and antibiotic resistance. The activity of these analogues parallels indole, because they are dependent on temperature, the enzyme tryptophanase TnaA, and the transcriptional regulator SdiA. This investigation demonstrates that molecules based on the dFBr scaffold can alter pathogenic behaviors by mimicking indole-signaling pathways.
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Affiliation(s)
- Marine J Minvielle
- Department of Chemistry, North Carolina State University, Raleigh, NC, 27695-8204 (USA), Fax: (+1) 919-515-5079
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26
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Duan Z, Han J, Qian P, Zhang Z, Wang Y, Pan Y. Enantioselective synthesis of 3-hydroxy oxindoles by ytterbium-catalysed decarboxylative addition of β-ketoacids to isatins. Org Biomol Chem 2013; 11:6456-9. [DOI: 10.1039/c3ob41460d] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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27
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Adla SK, Sasse F, Kelter G, Fiebig HH, Lindel T. Doubly prenylated tryptamines: cytotoxicity, antimicrobial activity and cyclisation to the marine natural product flustramine A. Org Biomol Chem 2013; 11:6119-30. [DOI: 10.1039/c3ob40896e] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Righi M, Topi F, Bartolucci S, Bedini A, Piersanti G, Spadoni G. Synthesis of tryptamine derivatives via a direct, one-pot reductive alkylation of indoles. J Org Chem 2012; 77:6351-7. [PMID: 22724919 DOI: 10.1021/jo3010028] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient, one-pot reductive alkylation of indoles with N-protected aminoethyl acetals in the presence of TES/TFA is reported. It represents the first general method for the direct synthesis of tryptamine derivatives from indoles and nitrogen-functionalized acetals. This convergent and versatile approach employs safe and inexpensive reagents, proceeds under mild conditions, and tolerates several functional groups. The new procedure was efficiently applied to a gram-scale synthesis of both luzindole, a reference MT2-selective melatonin receptor antagonist, and melatonin.
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Affiliation(s)
- Marika Righi
- Department of Biomolecular Sciences, University of Urbino, Piazza Rinascimento 6, 61029 Urbino (PU), Italy
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29
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Fan F, Xie W, Ma D. Cascade annulation of malonic diamides: a concise synthesis of polycyclic pyrroloindolines. Chem Commun (Camb) 2012; 48:7571-3. [DOI: 10.1039/c2cc33129b] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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31
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Bunders CA, Minvielle MJ, Worthington RJ, Ortiz M, Cavanagh J, Melander C. Intercepting bacterial indole signaling with flustramine derivatives. J Am Chem Soc 2011; 133:20160-3. [PMID: 22091927 DOI: 10.1021/ja209836z] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Indole signaling is one of the putative universal signaling networks in bacteria. We have investigated the use of desformylflustrabromine (dFBr) derivatives for the inhibition of biofilm formation through modulation of the indole-signaling network in Escherichia coli and Staphylococcus aureus . We have found dFBr derivatives that are 10-1000 times more active than indole itself, demonstrating that the flustramine family of indolic natural products represent a privileged scaffold for the design of molecules to control pathogenic bacterial behavior.
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Affiliation(s)
- Cynthia A Bunders
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695, USA
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32
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Isaji H, Nakazaki A, Isobe M, Nishikawa T. Concise Synthesis of Deformylflustrabromine, a Marine Indole Alkaloid, through a 2-Propynyl Dicobalt Hexacarbonyl Complex. CHEM LETT 2011. [DOI: 10.1246/cl.2011.1079] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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33
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Bunders C, Cavanagh J, Melander C. Flustramine inspired synthesis and biological evaluation of pyrroloindoline triazole amides as novel inhibitors of bacterial biofilms. Org Biomol Chem 2011; 9:5476-81. [PMID: 21674109 PMCID: PMC3428232 DOI: 10.1039/c1ob05605k] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Anti-biofilm agents have been developed based upon the flustramine family of alkaloids isolated from Flustra foliacea. A Garg interrupted Fischer indolization reaction was employed to access a core pyrroloindoline scaffold that was subsequently employed to create a pyrroloindoline triazole amide library. Screening for the ability to modulate biofilm formation against strains of Gram-positive and Gram-negative bacteria identified several compounds with low micromolar, non-toxic IC(50) values.
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Affiliation(s)
- Cynthia Bunders
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina, 27695, USA; Fax: +1 919-515-5079; Tel: +1 919-513-2960
| | - John Cavanagh
- Department of Molecular and Structural Biochemistry, North Carolina State University, Raleigh, North Carolina, 27695, USA
| | - Christian Melander
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina, 27695, USA; Fax: +1 919-515-5079; Tel: +1 919-513-2960
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34
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Qi X, Bao H, Tambar UK. Total synthesis of (±)-trigonoliimine C via oxidative rearrangement of an unsymmetrical bis-tryptamine. J Am Chem Soc 2011; 133:10050-3. [PMID: 21671591 DOI: 10.1021/ja203960b] [Citation(s) in RCA: 87] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report the first total synthesis of (±)-trigonoliimine C, a member of a family of structurally complex alkaloids, in 10 steps from tryptamine and 6-methoxytryptamine. Our convergent synthetic strategy relies on a selective oxidative rearrangement of an unsymmetrical 2,2'-bis-tryptamine.
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Affiliation(s)
- Xiangbing Qi
- Department of Biochemistry, Division of Chemistry, The University of Texas Southwestern Medical Center at Dallas, 5323 Harry Hines Boulevard, Dallas, Texas 75390-9038, USA
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Kolundzic F, Noshi MN, Tjandra M, Movassaghi M, Miller SJ. Chemoselective and enantioselective oxidation of indoles employing aspartyl peptide catalysts. J Am Chem Soc 2011; 133:9104-11. [PMID: 21539386 DOI: 10.1021/ja202706g] [Citation(s) in RCA: 96] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Catalytic enantioselective indole oxidation is a process of particular relevance to the chemistry of complex alkaloids, as it has been implicated in their biosynthesis. In the context of synthetic methodology, catalytic enantioselective indole oxidation allows a rapid and biomimetic entry into several classes of alkaloid natural products. Despite this potentially high utility in the total synthesis, reports of catalytic enantioselective indole oxidation remain sparse. Here we report a highly chemoselective catalytic system for the indole oxidation that delivers 3-hydroxy-indolenines with good chemical yields and moderate to high levels of enantio- and diastereoselectivity (up to 95:5 er and up to 92:8 dr). These results represent, to our knowledge, the most selective values yet reported in the literature for catalytic asymmetric indole oxidation. Furthermore, the utility of enantioenriched hydroxy-indolenines in stereospecific rearrangements is demonstrated.
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Affiliation(s)
- Filip Kolundzic
- Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520-8107, USA
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Repka LM, Ni J, Reisman SE. Enantioselective synthesis of pyrroloindolines by a formal [3 + 2] cycloaddition reaction. J Am Chem Soc 2011; 132:14418-20. [PMID: 20873714 DOI: 10.1021/ja107328g] [Citation(s) in RCA: 195] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
(R)-BINOL·SnCl(4) was found to catalyze a formal [3 + 2] cycloaddition reaction between C(3)-substituted indoles and 2-amidoacrylates to provide pyrroloindolines. A variety of pyrroloindolines were prepared with high enantioselectivity in one step from simple precursors. This methodology is expected to facilitate the total synthesis of pyrroloindoline alkaloids, an important class of biologically active natural products.
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Affiliation(s)
- Lindsay M Repka
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, USA
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Ruiz-Sanchis P, Savina SA, Albericio F, Álvarez M. Structure, Bioactivity and Synthesis of Natural Products with Hexahydropyrrolo[2,3-b]indole. Chemistry 2011; 17:1388-408. [DOI: 10.1002/chem.201001451] [Citation(s) in RCA: 384] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Abstract
Important biologically active indole alkaloids are decorated with prenyl (3,3-dimethylallyl) and tert-prenyl (1,1-dimethylallyl) groups. Covering the literature until the end of 2010, this review article comprehensively summarises and discusses the currently available technologies of prenylation and tert-prenylation of indoles, which have been applied in natural products total syntheses or could be applied there in the near future. We focus on those procedures which introduce the C(5) units in one step, organised according to the indole position to be functionalised. Key strategies include electrophilic and nucleophilic prenylation and tert-prenylation, prenyl and tert-prenyl rearrangements, transition metal-mediated reactions and enzymatic methods.
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Affiliation(s)
- Thomas Lindel
- Institut für Organische Chemie, TU Braunschweig, Hagenring 30, 38106 Braunschweig, Germany.
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39
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Bedford RB, Fey N, Haddow MF, Sankey RF. Remarkably reactive dihydroindoloindoles via palladium-catalysed dearomatisation. Chem Commun (Camb) 2011; 47:3649-51. [DOI: 10.1039/c0cc05033d] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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40
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Lucarini S, Bartoccini F, Battistoni F, Diamantini G, Piersanti G, Righi M, Spadoni G. A Novel One-Pot Approach of Hexahydropyrrolo[2,3-b]indole Nucleus by a cascade addition/cyclization strategy: Synthesis of (±)-Esermethole. Org Lett 2010; 12:3844-7. [DOI: 10.1021/ol101527j] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Simone Lucarini
- Department of Drug and Health Sciences, University of Urbino “Carlo Bo”, Piazza del Rinascimento 6, 61029 Urbino (PU), Italy
| | - Francesca Bartoccini
- Department of Drug and Health Sciences, University of Urbino “Carlo Bo”, Piazza del Rinascimento 6, 61029 Urbino (PU), Italy
| | - Flavia Battistoni
- Department of Drug and Health Sciences, University of Urbino “Carlo Bo”, Piazza del Rinascimento 6, 61029 Urbino (PU), Italy
| | - Giuseppe Diamantini
- Department of Drug and Health Sciences, University of Urbino “Carlo Bo”, Piazza del Rinascimento 6, 61029 Urbino (PU), Italy
| | - Giovanni Piersanti
- Department of Drug and Health Sciences, University of Urbino “Carlo Bo”, Piazza del Rinascimento 6, 61029 Urbino (PU), Italy
| | - Marika Righi
- Department of Drug and Health Sciences, University of Urbino “Carlo Bo”, Piazza del Rinascimento 6, 61029 Urbino (PU), Italy
| | - Gilberto Spadoni
- Department of Drug and Health Sciences, University of Urbino “Carlo Bo”, Piazza del Rinascimento 6, 61029 Urbino (PU), Italy
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Abstract
An overview of marine natural products synthesis during 2007 is provided. As with earlier installments in this series, the emphasis is on total syntheses of molecules of contemporary interest, new total syntheses, and syntheses that have resulted in structure confirmation or stereochemical assignments.1 Introduction, 2 Review articles, 3 Azaspiracid, 4 Polyethers, 5 Guanidinium alkaloids, 6 Amphidinolides, 7 Total syntheses of other compounds, 8 Acknowledgements, 9 References.
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Affiliation(s)
- Jonathan C Morris
- School of Chemistry and Physics, University of Adelaide, Adelaide, Australia5005
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42
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Kawasaki T. Stereoselective Reaction for Construction of Quaternary Carbon Center and its Application to the Syntheses of Pyrrolidino[2,3-b]indoline Natural Products. J SYN ORG CHEM JPN 2009. [DOI: 10.5059/yukigoseikyokaishi.67.1012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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43
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Ishikura M, Yamada K. Simple indole alkaloids and those with a nonrearranged monoterpenoid unit. Nat Prod Rep 2009; 26:803-52. [DOI: 10.1039/b820693g] [Citation(s) in RCA: 94] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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44
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Movassaghi M, Schmidt MA, Ashenhurst JA. Stereoselective oxidative rearrangement of 2-aryl tryptamine derivatives. Org Lett 2008; 10:4009-12. [PMID: 18722452 DOI: 10.1021/ol8015176] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The oxidation of 2-aryl tryptamines followed by a stereoselective rearrangement provides a versatile strategy for the synthesis of C3-quaternary oxindoles bearing a C3-aryl group. Treatment of optically active 2-aryl hydroxyindolenines with scandium trifluoromethanesulfonate in toluene at 110 degrees C leads to complete and stereoselective isomerization to the corresponding C3-aryl oxindoles which represent versatile intermediates for the synthesis of C3a-aryl hexahydropyrroloindoles.
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Affiliation(s)
- Mohammad Movassaghi
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, 18-292, Cambridge, Massachusetts 02139, USA.
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Coste A, Toumi M, Wright K, Razafimahaléo V, Couty F, Marrot J, Evano G. Copper-Catalyzed Cyclization of Iodo-tryptophans: A Straightforward Synthesis of Pyrroloindoles. Org Lett 2008; 10:3841-4. [DOI: 10.1021/ol8015513] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alexis Coste
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles Saint-Quentin en Yvelines, 45, avenue des Etats-Unis, 78035 Versailles Cedex, France
| | - Mathieu Toumi
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles Saint-Quentin en Yvelines, 45, avenue des Etats-Unis, 78035 Versailles Cedex, France
| | - Karen Wright
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles Saint-Quentin en Yvelines, 45, avenue des Etats-Unis, 78035 Versailles Cedex, France
| | - Vanessa Razafimahaléo
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles Saint-Quentin en Yvelines, 45, avenue des Etats-Unis, 78035 Versailles Cedex, France
| | - François Couty
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles Saint-Quentin en Yvelines, 45, avenue des Etats-Unis, 78035 Versailles Cedex, France
| | - Jérome Marrot
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles Saint-Quentin en Yvelines, 45, avenue des Etats-Unis, 78035 Versailles Cedex, France
| | - Gwilherm Evano
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles Saint-Quentin en Yvelines, 45, avenue des Etats-Unis, 78035 Versailles Cedex, France
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Kawasaki T, Shinada M, Ohzono M, Ogawa A, Terashima R, Sakamoto M. Total Synthesis of (±)-Flustramines A and C, (±)-Flustramide A, and (−)- and (+)-Debromoflustramines A. J Org Chem 2008; 73:5959-64. [DOI: 10.1021/jo800984a] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tomomi Kawasaki
- Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | - Masashi Shinada
- Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | - Mayu Ohzono
- Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | - Atsuyo Ogawa
- Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | - Romi Terashima
- Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | - Masanori Sakamoto
- Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
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Shangguan N, Hehre WJ, Ohlinger WS, Beavers MP, Joullié MM. The Total Synthesis of Roquefortine C and a Rationale for the Thermodynamic Stability of Isoroquefortine C over Roquefortine C. J Am Chem Soc 2008; 130:6281-7. [DOI: 10.1021/ja800067q] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ning Shangguan
- Wavefunction, Inc., 18401 Von Karman Avenue, Suite 370, Irvine, California 92612, Institute for Medicine and Engineering, University of Pennsylvania, 1026 Vagelos Research Labs, Philadelphia, Pennsylvania 19104-6383, and Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
| | - Warren J. Hehre
- Wavefunction, Inc., 18401 Von Karman Avenue, Suite 370, Irvine, California 92612, Institute for Medicine and Engineering, University of Pennsylvania, 1026 Vagelos Research Labs, Philadelphia, Pennsylvania 19104-6383, and Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
| | - William S. Ohlinger
- Wavefunction, Inc., 18401 Von Karman Avenue, Suite 370, Irvine, California 92612, Institute for Medicine and Engineering, University of Pennsylvania, 1026 Vagelos Research Labs, Philadelphia, Pennsylvania 19104-6383, and Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
| | - Mary Pat Beavers
- Wavefunction, Inc., 18401 Von Karman Avenue, Suite 370, Irvine, California 92612, Institute for Medicine and Engineering, University of Pennsylvania, 1026 Vagelos Research Labs, Philadelphia, Pennsylvania 19104-6383, and Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
| | - Madeleine M. Joullié
- Wavefunction, Inc., 18401 Von Karman Avenue, Suite 370, Irvine, California 92612, Institute for Medicine and Engineering, University of Pennsylvania, 1026 Vagelos Research Labs, Philadelphia, Pennsylvania 19104-6383, and Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
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48
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Morales-Ríos MS, Suárez-Castillo OR. Synthesis of Marine Indole Alkaloids from Flustra foliacea. Nat Prod Commun 2008. [DOI: 10.1177/1934578x0800300421] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Brominated natural indoles are frequently reported metabolites of marine seaweeds. The bryozoan Flustra foliacea has been a rich source of brominated indole alkaloids bearing prenyl or isoprenyl substituents at various positions. Because interest in the chemistry of these marine alkaloids is steadily growing and shows unique promise in the discovery of new important medicinal drugs, the methods which have been employed towards their total synthesis are reviewed in detail.
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Affiliation(s)
- Martha S. Morales-Ríos
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Apartado 14-740, Mexico, D. F., 07000 Mexico
| | - Oscar R. Suárez-Castillo
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Hidalgo, Apartado 1-328, Pachuca, Hidalgo, 42001 Mexico
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