1
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Mahdavi SM, Bockfeld D, Büssing R, Karge B, Bannenberg T, Frank R, Brönstrup M, Ott I, Tamm M. Synthesis of N-heterocyclic carbene gold(I) complexes from the marine betaine 1,3-dimethylimidazolium-4-carboxylate. Dalton Trans 2024; 53:1942-1946. [PMID: 38205632 DOI: 10.1039/d3dt04135b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
The marine natural product norzooanemonin (1,3-dimethylimidazolium-4-carboxylate) has been used to prepare a series of carboxyl- or carboxylate-functionalized N-heterocyclic carbene (NHC) gold(I) complexes from [(Me2S)AuCl] in the presence of potassium carbonate. The potential of the resulting mono- and dicarbene complexes to act as cytotoxic or antibacterial drugs was investigated.
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Affiliation(s)
- Seyedeh Mahbobeh Mahdavi
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring30, 38106 Braunschweig, Germany.
| | - Dirk Bockfeld
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring30, 38106 Braunschweig, Germany.
| | - Rolf Büssing
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Beethovenstraße 55, 38106 Braunschweig, Germany
| | - Bianka Karge
- Department of Chemical Biology, Helmholtz Centre for Infection Research GmbH, Inhoffenstrasse 7, 38124 Braunschweig, Germany
| | - Thomas Bannenberg
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring30, 38106 Braunschweig, Germany.
| | - René Frank
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring30, 38106 Braunschweig, Germany.
| | - Mark Brönstrup
- Department of Chemical Biology, Helmholtz Centre for Infection Research GmbH, Inhoffenstrasse 7, 38124 Braunschweig, Germany
| | - Ingo Ott
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Beethovenstraße 55, 38106 Braunschweig, Germany
| | - Matthias Tamm
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring30, 38106 Braunschweig, Germany.
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2
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Zhang H, Wen W, Lu ZX, Wu ZL, Cai T, Guo QX. Core Structure-Oriented Asymmetric α-Allenylic Alkylation of Amino Acid Esters Enabled by Chiral Aldehyde/Palladium Catalysis. Org Lett 2024; 26:153-159. [PMID: 38133484 DOI: 10.1021/acs.orglett.3c03762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Aiming at the reported chiral synthons leading to manzacidins A and D, here we report a highly efficient catalytic asymmetric α-allenylic alkylation reaction of NH2-unprotected amino acid esters that is promoted by combined chiral aldehyde/palladium catalysis. Fifty examples of unnatural α,α-disubstituted amino acid esters are reported with good-to-excellent yields and stereoselectivities. Based on this methodology, a key intermediate leading to manzacidin C and its other three stereoisomers is prepared accordingly.
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Affiliation(s)
- Hao Zhang
- Key Laboratory of Applied Chemistry of Chongqing Municipality and Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Wei Wen
- Key Laboratory of Applied Chemistry of Chongqing Municipality and Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Ze-Xi Lu
- Key Laboratory of Applied Chemistry of Chongqing Municipality and Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Zhu-Lian Wu
- Key Laboratory of Applied Chemistry of Chongqing Municipality and Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Tian Cai
- Key Laboratory of Applied Chemistry of Chongqing Municipality and Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Qi-Xiang Guo
- Key Laboratory of Applied Chemistry of Chongqing Municipality and Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
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3
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Abstract
This review deals with the synthesis of naturally occurring alkaloids containing partially or completely saturated pyrimidine nuclei. The interest in these compounds is associated with their structural diversity, high biological activity and toxicity. The review is divided into four parts, each of which describes a number of synthetic methodologies toward structurally different naturally occurring alkaloids containing saturated cyclic six-membered amidine, guanidine, aminal and urea (thiourea) moieties, respectively. The development of various synthetic strategies for the preparation of these compounds has remarkably increased during the past few decades. This is primarily due to the fact that some of these compounds are isolated only in limited quantities, which makes it practically impossible to study their full structural characteristics and biological activity.
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4
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Heravi MM, Abedian‐Dehaghani N, Zadsirjan V, Rangraz Y. Catalytic Function of Cu (I) and Cu (II) in Total Synthesis of Alkaloids. ChemistrySelect 2021. [DOI: 10.1002/slct.202101130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Majid M. Heravi
- Department of Chemistry School of Physics and Chemistry Alzahra University, PO.Box 1993891176, Vanak Tehran Iran
| | - Neda Abedian‐Dehaghani
- Department of Chemistry School of Physics and Chemistry Alzahra University, PO.Box 1993891176, Vanak Tehran Iran
| | - Vahideh Zadsirjan
- Department of Chemistry School of Physics and Chemistry Alzahra University, PO.Box 1993891176, Vanak Tehran Iran
| | - Yalda Rangraz
- Department of Chemistry School of Physics and Chemistry Alzahra University, PO.Box 1993891176, Vanak Tehran Iran
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5
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Seipp K, Geske L, Opatz T. Marine Pyrrole Alkaloids. Mar Drugs 2021; 19:514. [PMID: 34564176 PMCID: PMC8471394 DOI: 10.3390/md19090514] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 09/05/2021] [Accepted: 09/07/2021] [Indexed: 12/13/2022] Open
Abstract
Nitrogen heterocycles are essential parts of the chemical machinery of life and often reveal intriguing structures. They are not only widespread in terrestrial habitats but can also frequently be found as natural products in the marine environment. This review highlights the important class of marine pyrrole alkaloids, well-known for their diverse biological activities. A broad overview of the marine pyrrole alkaloids with a focus on their isolation, biological activities, chemical synthesis, and derivatization covering the decade from 2010 to 2020 is provided. With relevant structural subclasses categorized, this review shall provide a clear and timely synopsis of this area.
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Affiliation(s)
| | | | - Till Opatz
- Department of Chemistry, Organic Chemistry Section, Johannes Gutenberg University, Duesbergweg 10–14, 55128 Mainz, Germany; (K.S.); (L.G.)
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6
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Jiang W, Wang D, Wilson BAP, Kang U, Bokesch HR, Smith EA, Wamiru A, Goncharova EI, Voeller D, Lipkowitz S, O’Keefe BR, Gustafson KR. Agelasine Diterpenoids and Cbl-b Inhibitory Ageliferins from the Coralline Demosponge Astrosclera willeyana. Mar Drugs 2021; 19:361. [PMID: 34202500 PMCID: PMC8307156 DOI: 10.3390/md19070361] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 06/17/2021] [Accepted: 06/21/2021] [Indexed: 12/20/2022] Open
Abstract
An extract of the coralline demosponge Astrosclera willeyana inhibited the ubiquitin ligase activity of the immunomodulatory protein Cbl-b. The bioassay-guided separation of the extract provided ten active compounds, including three new N-methyladenine-containing diterpenoids, agelasines W-Y (1-3), a new bromopyrrole alkaloid, N(1)-methylisoageliferin (4), and six known ageliferin derivatives (5-10). The structures of the new compounds were elucidated from their spectroscopic and spectrometric data, including IR, HRESIMS, and NMR, and by comparison with spectroscopic data in the literature. While all of the isolated compounds showed Cbl-b inhibitory activities, ageliferins (4-10) were the most potent metabolites, with IC50 values that ranged from 18 to 35 μM.
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Affiliation(s)
- Wei Jiang
- Marine Science & Technology Institute, College of Environmental Science & Engineering, Yangzhou University, Yangzhou 225127, China;
- Molecular Targets Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD 21702-1201, USA; (D.W.); (B.A.P.W.); (U.K.); (H.R.B.); (E.A.S.); (A.W.); (E.I.G.); (B.R.O.)
| | - Dongdong Wang
- Molecular Targets Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD 21702-1201, USA; (D.W.); (B.A.P.W.); (U.K.); (H.R.B.); (E.A.S.); (A.W.); (E.I.G.); (B.R.O.)
| | - Brice A. P. Wilson
- Molecular Targets Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD 21702-1201, USA; (D.W.); (B.A.P.W.); (U.K.); (H.R.B.); (E.A.S.); (A.W.); (E.I.G.); (B.R.O.)
| | - Unwoo Kang
- Molecular Targets Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD 21702-1201, USA; (D.W.); (B.A.P.W.); (U.K.); (H.R.B.); (E.A.S.); (A.W.); (E.I.G.); (B.R.O.)
| | - Heidi R. Bokesch
- Molecular Targets Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD 21702-1201, USA; (D.W.); (B.A.P.W.); (U.K.); (H.R.B.); (E.A.S.); (A.W.); (E.I.G.); (B.R.O.)
- Basic Science Program, Frederick National Laboratory for Cancer Research, National Institutes of Health, Frederick, MD 21702-1201, USA
| | - Emily A. Smith
- Molecular Targets Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD 21702-1201, USA; (D.W.); (B.A.P.W.); (U.K.); (H.R.B.); (E.A.S.); (A.W.); (E.I.G.); (B.R.O.)
- Basic Science Program, Frederick National Laboratory for Cancer Research, National Institutes of Health, Frederick, MD 21702-1201, USA
| | - Antony Wamiru
- Molecular Targets Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD 21702-1201, USA; (D.W.); (B.A.P.W.); (U.K.); (H.R.B.); (E.A.S.); (A.W.); (E.I.G.); (B.R.O.)
- Basic Science Program, Frederick National Laboratory for Cancer Research, National Institutes of Health, Frederick, MD 21702-1201, USA
| | - Ekaterina I. Goncharova
- Molecular Targets Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD 21702-1201, USA; (D.W.); (B.A.P.W.); (U.K.); (H.R.B.); (E.A.S.); (A.W.); (E.I.G.); (B.R.O.)
- Advanced Biomedical Computational Science, Frederick National Laboratory for Cancer Research, Frederick, MD 21702-1201, USA
| | - Donna Voeller
- Women’s Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892-1578, USA; (D.V.); (S.L.)
| | - Stanley Lipkowitz
- Women’s Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892-1578, USA; (D.V.); (S.L.)
| | - Barry R. O’Keefe
- Molecular Targets Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD 21702-1201, USA; (D.W.); (B.A.P.W.); (U.K.); (H.R.B.); (E.A.S.); (A.W.); (E.I.G.); (B.R.O.)
- Natural Products Branch, Developmental Therapeutics Program, Division of Cancer Treatment and Diagnosis, National Cancer Institute, National Institutes of Health, Frederick, MD 21702-1201, USA
| | - Kirk R. Gustafson
- Molecular Targets Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD 21702-1201, USA; (D.W.); (B.A.P.W.); (U.K.); (H.R.B.); (E.A.S.); (A.W.); (E.I.G.); (B.R.O.)
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7
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Delaude L. The Chemistry of Azolium‐Carboxylate Zwitterions and Related Compounds: a Survey of the Years 2009–2020. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000639] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Lionel Delaude
- Laboratory of CatalysisMolSys Research UnitInstitut de Chimie Organique (B6a)Université de Liège Allée du six Août 13 4000 Liège Belgium
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8
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Shapovalov SS, Kolos AV, Makhin AP, Skabitskii IV, Simonenko NP, Minin VV. Complexes of Cobalt and Copper Halides Based on 1,3-Dimethylimidazolium-4-Carboxylate. J STRUCT CHEM+ 2019. [DOI: 10.1134/s002247661910010x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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9
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Halli J, Kramer P, Grimmer J, Bolte M, Manolikakes G. Bi(OTf) 3-Catalyzed Diastereoselective One-Pot Synthesis of 1,3-Diamines with Three Continuous Stereogenic Centers. J Org Chem 2018; 83:12007-12022. [PMID: 30205002 DOI: 10.1021/acs.joc.8b01925] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A highly modular, diastereoselective one-pot-synthesis of 1,3-diamines with three contiguous stereogenic centers is reported. Our method provides a fast and efficient access to 1,2- anti-2,3- anti-1,3-diamines from three readily available building blocks. This Bi(OTf)3-catalyzed reaction is insensitive to air and moisture and can be performed on a multigram scale.
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Affiliation(s)
- Juliette Halli
- Institute for Organic Chemistry and Chemical Biology , Goethe University Frankfurt am Main , Max-von-Laue-Str. 7 , 60438 Frankfurt am Main , Germany
| | - Philipp Kramer
- Institute for Organic Chemistry , Technical University Kaiserslautern , Erwin-Schrödinger-Str. Geb. 54 , 67663 Kaiserslautern , Germany
| | - Jennifer Grimmer
- Institute for Organic Chemistry , Technical University Kaiserslautern , Erwin-Schrödinger-Str. Geb. 54 , 67663 Kaiserslautern , Germany
| | - Michael Bolte
- Institute for Inorganic and Analytical Chemistry , Goethe University Frankfurt am Main , Max-von-Laue-Str. 7 , 60438 Frankfurt am Main , Germany
| | - Georg Manolikakes
- Institute for Organic Chemistry , Technical University Kaiserslautern , Erwin-Schrödinger-Str. Geb. 54 , 67663 Kaiserslautern , Germany
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10
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Two new pyrrolo-2-aminoimidazoles from a Myanmarese marine sponge, Clathria prolifera. J Nat Med 2018; 72:803-807. [PMID: 29569222 DOI: 10.1007/s11418-018-1205-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Accepted: 03/14/2018] [Indexed: 10/17/2022]
Abstract
Marine organisms such as marine sponges and soft corals are valuable sources of pharmacologically active secondary metabolites. In our ongoing research on the discovery of new secondary metabolites from marine organisms, two new pyrrolo-2-aminoimidazoles, clathriroles A (1) and B (2), were isolated from the water-soluble portion prepared from the methanol and acetone (2:1) extract of the marine sponge, Clathria prolifera, collected in Myanmar. The chemical structures of the isolated compounds were determined using extensive spectroscopic techniques, including NMR, HRESIMS, IR, and optical rotation, and comparisons with the reported literature. The spectroscopic analyses of 1 and 2 suggested that 1 is an enantiomer of antifungal N-methylmanzacidin C isolated from the marine sponge Axinella brevistyla, whereas 2 is a diastereomer of manzacidin D at C-11 isolated from the marine sponge Astrosclera willeyana. To the best of our knowledge, this is the first report of the isolation of the pyrrolo-2-aminoimidazole compounds from C. prolifera. Furthermore, in contrast to the potency of N-methylmanzacidin C against Saccharomyces cerevisiae, the antifungal assay revealed that 1 and 2 lack any activity against this strain. Thus, these observations may suggest that the absolute configurations at both C-9 and C-11 play an important role in controlling the antifungal activity of this type of compound.
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11
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Halli J, Bolte M, Bats J, Manolikakes G. Modular Two-Step Approach for the Stereodivergent Synthesis of 1,3-Diamines with Three Continuous Stereocenters. Org Lett 2017; 19:674-677. [PMID: 28098467 DOI: 10.1021/acs.orglett.6b03841] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Juliette Halli
- Department of Biochemistry,
Chemistry and Pharmacy, Goethe-University, Max-von-Laue-Strasse 7, 60438 Frankfurt, Germany
| | - Michael Bolte
- Department of Biochemistry,
Chemistry and Pharmacy, Goethe-University, Max-von-Laue-Strasse 7, 60438 Frankfurt, Germany
| | - Jan Bats
- Department of Biochemistry,
Chemistry and Pharmacy, Goethe-University, Max-von-Laue-Strasse 7, 60438 Frankfurt, Germany
| | - Georg Manolikakes
- Department of Biochemistry,
Chemistry and Pharmacy, Goethe-University, Max-von-Laue-Strasse 7, 60438 Frankfurt, Germany
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12
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Bretzke S, Scheeff S, Vollmeyer F, Eberhagen F, Rominger F, Menche D. Modular synthesis of the pyrimidine core of the manzacidins by divergent Tsuji-Trost coupling. Beilstein J Org Chem 2016; 12:1111-21. [PMID: 27340499 PMCID: PMC4902044 DOI: 10.3762/bjoc.12.107] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 05/13/2016] [Indexed: 12/20/2022] Open
Abstract
The design, development and application of an efficient procedure for the concise synthesis of the 1,3-syn- and anti-tetrahydropyrimidine cores of manzacidins are reported. The intramolecular allylic substitution reaction of a readily available joint urea-type substrate enables the facile preparation of both diastereomers in high yields. The practical application of this approach is demonstrated in the efficient and modular preparation of the authentic heterocyclic cores of manzacidins, structurally unique bromopyrrole alkaloids of marine origin. Additional features of this route include the stereoselective generation of the central amine core with an appending quaternary center by an asymmetric addition of a Grignard reagent to a chiral tert-butanesulfinyl ketimine following an optimized Ellman protocol and a cross-metathesis of a challenging homoallylic urea substrate, which proceeds in good yields in the presence of an organic phosphoric acid.
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Affiliation(s)
- Sebastian Bretzke
- Institut für Organische Chemie, Ruprecht-Karls Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Stephan Scheeff
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Strasse 1, 53121 Bonn, Germany
| | - Felicitas Vollmeyer
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Strasse 1, 53121 Bonn, Germany
| | - Friederike Eberhagen
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Strasse 1, 53121 Bonn, Germany
| | - Frank Rominger
- Institut für Organische Chemie, Ruprecht-Karls Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Dirk Menche
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Strasse 1, 53121 Bonn, Germany
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13
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Hager A, Vrielink N, Hager D, Lefranc J, Trauner D. Synthetic approaches towards alkaloids bearing α-tertiary amines. Nat Prod Rep 2015; 33:491-522. [PMID: 26621771 DOI: 10.1039/c5np00096c] [Citation(s) in RCA: 134] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Alkaloids account for some of the most beautiful and biologically active natural products. Although they are usually classified along biosynthetic criteria, they can also be categorized according to certain structural motifs. Amongst these, the α-tertiary amine (ATA), i.e. a tetrasubstituted carbon atom surrounded by three carbons and one nitrogen, is particularly interesting. A limited number of methods have been described to access this functional group and fewer still are commonly used in synthesis. Herein, we review some approaches to asymmetrically access ATAs and provide an overview of alkaloid total syntheses where those have been employed.
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Affiliation(s)
- Anastasia Hager
- Fakultät für Chemie und Pharmazie, Ludwig-Maximilians-Universität München, and Munich Center for Integrated Protein Science, Butenandtstr. 5 - 13, 81377 München, Germany.
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14
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Huang S, Shao Y, Zhang L, Zhou X. Cycloamidination of Aminoalkenes with Nitriles: Synthesis of Substituted 2-Imidazolines and Tetrahydropyrimidines. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201508442] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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15
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Huang S, Shao Y, Zhang L, Zhou X. Cycloamidination of Aminoalkenes with Nitriles: Synthesis of Substituted 2‐Imidazolines and Tetrahydropyrimidines. Angew Chem Int Ed Engl 2015; 54:14452-6. [DOI: 10.1002/anie.201508442] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Indexed: 12/16/2022]
Affiliation(s)
- Shujian Huang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433 (P.R. China)
| | - Yinlin Shao
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433 (P.R. China)
| | - Lixin Zhang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433 (P.R. China)
| | - Xigeng Zhou
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433 (P.R. China)
- State Key Laboratory of Organometallic Chemistry, Shanghai 200032 (P.R. China)
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16
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Nishikawa Y, Kimura S, Kato Y, Yamazaki N, Hara O. Pd(II)-Catalyzed Allylic C–H Amination for the Preparation of 1,2- and 1,3-Cyclic Ureas. Org Lett 2015; 17:888-91. [DOI: 10.1021/ol5037453] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yasuhiro Nishikawa
- Faculty
of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya 468-8503, Japan
| | - Seikou Kimura
- Faculty
of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya 468-8503, Japan
| | - Yuri Kato
- Faculty
of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya 468-8503, Japan
| | - Natsuka Yamazaki
- Faculty
of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya 468-8503, Japan
| | - Osamu Hara
- Faculty
of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya 468-8503, Japan
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17
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Lalwani KG, Aher RD, Sudalai A. Organocatalytic [4+1]-annulation approach for the synthesis of densely functionalized pyrazolidine carboxylates. RSC Adv 2015. [DOI: 10.1039/c5ra09583b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
The present protocol provides optically active pyrazolidine carboxylates with derivatizable functional groups in high yields with excellent enantio- and diastereoselectivities.
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Affiliation(s)
- Komal G. Lalwani
- Chemical Engineering & Process Development Division
- CSIR-National Chemical Laboratory
- Pune
- India-411008
| | - Ravindra D. Aher
- Chemical Engineering & Process Development Division
- CSIR-National Chemical Laboratory
- Pune
- India-411008
| | - Arumugam Sudalai
- Chemical Engineering & Process Development Division
- CSIR-National Chemical Laboratory
- Pune
- India-411008
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18
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Kelemen Z, Péter-Szabó B, Székely E, Hollóczki O, Firaha DS, Kirchner B, Nagy J, Nyulászi L. An abnormal N-heterocyclic carbene-carbon dioxide adduct from imidazolium acetate ionic liquids: the importance of basicity. Chemistry 2014; 20:13002-8. [PMID: 25137312 DOI: 10.1002/chem.201402912] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Indexed: 11/08/2022]
Abstract
In the reaction of 1-ethyl-3-methylimidazolium acetate [C2C1Im][OAc] ionic liquid with carbon dioxide at 125 °C and 10 MPa, not only the known N-heterocyclic carbene (NHC)-CO2 adduct I, but also isomeric aNHC-CO2 adducts II and III were obtained. The abnormal NHC-CO2 adducts are stabilized by the presence of the polarizing basic acetate anion, according to static DFT calculations and ab initio molecular dynamics studies. A further possible reaction pathway is facilitated by the high basicity of the system, deprotonating the initially formed NHC-CO2 adduct I, which can then be converted in the presence of the excess of CO2 to the more stable 2-deprotonated anionic abnormal NHC-CO2 adduct via the anionic imidazolium-2,4-dicarboxylate according to DFT calculations on model compounds. This suggests a generalizable pathway to abnormal NHC complex formation.
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Affiliation(s)
- Zsolt Kelemen
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szt. Gellért tér 4. Budapest, 1111 (Hungary)
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Kashiwagi T, Kotani S, Nakajima M, Sugiura M. Diastereoselective synthesis of 1,3-diamines by a domino reaction of imines, enamines, and trichlorosilane. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.01.152] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Majumdar KC, Sinha B. Coinage metals (Cu, Ag and Au) in the synthesis of natural products. RSC Adv 2014. [DOI: 10.1039/c3ra44336a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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Kumar P, Jha V, Gonnade R. Proline-Catalyzed Asymmetric Synthesis of syn- and anti-1,3-Diamines. J Org Chem 2013; 78:11756-64. [DOI: 10.1021/jo401722e] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pradeep Kumar
- Organic Chemistry
Division, CSIR-National Chemical Laboratory (CSIR-NCL), Homi Bhabha Road, Pune 411008, Maharashtra, India
| | - Vishwajeet Jha
- Organic Chemistry
Division, CSIR-National Chemical Laboratory (CSIR-NCL), Homi Bhabha Road, Pune 411008, Maharashtra, India
| | - Rajesh Gonnade
- Centre for Material
Characterization Division, CSIR-National Chemical Laboratory (CSIR-NCL), Homi Bhabha
Road, Pune 411008, Maharashtra, India
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Kumar BS, Venkataramasubramanian V, Sudalai A. Organocatalytic Sequential α-Amination/Corey–Chaykovsky Reaction of Aldehydes: A High Yield Synthesis of 4-Hydroxypyrazolidine Derivatives. Org Lett 2012; 14:2468-71. [DOI: 10.1021/ol300739b] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- B. Senthil Kumar
- Chemical Engineering and Process Development Division, National Chemical Laboratory, Pashan Road, Pune-411 008, India
| | - V. Venkataramasubramanian
- Chemical Engineering and Process Development Division, National Chemical Laboratory, Pashan Road, Pune-411 008, India
| | - Arumugam Sudalai
- Chemical Engineering and Process Development Division, National Chemical Laboratory, Pashan Road, Pune-411 008, India
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Sankar K, Rahman H, Das PP, Bhimireddy E, Sridhar B, Mohapatra DK. Practical Syntheses of Proposed and Revised Manzacidin B and Their Congeners. Org Lett 2012; 14:1082-5. [DOI: 10.1021/ol203466m] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kuppusamy Sankar
- CSIR-Indian Institute of Chemical Technology, Hyderabad-500 607, India, and CSIR-National Chemical Laboratory, Pune-411 008, India
| | - Hasibur Rahman
- CSIR-Indian Institute of Chemical Technology, Hyderabad-500 607, India, and CSIR-National Chemical Laboratory, Pune-411 008, India
| | - Pragna P. Das
- CSIR-Indian Institute of Chemical Technology, Hyderabad-500 607, India, and CSIR-National Chemical Laboratory, Pune-411 008, India
| | - Eswar Bhimireddy
- CSIR-Indian Institute of Chemical Technology, Hyderabad-500 607, India, and CSIR-National Chemical Laboratory, Pune-411 008, India
| | - B. Sridhar
- CSIR-Indian Institute of Chemical Technology, Hyderabad-500 607, India, and CSIR-National Chemical Laboratory, Pune-411 008, India
| | - Debendra K. Mohapatra
- CSIR-Indian Institute of Chemical Technology, Hyderabad-500 607, India, and CSIR-National Chemical Laboratory, Pune-411 008, India
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Morgen M, Bretzke S, Li P, Menche D. Stereodivergent Synthesis of 1,3-syn- and -anti-Tetrahydropyrimidinones. Org Lett 2010; 12:4494-7. [DOI: 10.1021/ol101755m] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Michael Morgen
- University of Heidelberg, Department of Organic Chemistry, INF 270, D-69120 Heidelberg, Germany
| | - Sebastian Bretzke
- University of Heidelberg, Department of Organic Chemistry, INF 270, D-69120 Heidelberg, Germany
| | - Pengfei Li
- University of Heidelberg, Department of Organic Chemistry, INF 270, D-69120 Heidelberg, Germany
| | - Dirk Menche
- University of Heidelberg, Department of Organic Chemistry, INF 270, D-69120 Heidelberg, Germany
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González MA, Correa-Royero J, Mesa A, Betancur-Galvis L. Synthesis and biological evaluation of pyridinebetaine A and B. Nat Prod Res 2009; 23:1485-91. [DOI: 10.1080/14786410802573800] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Delaude L. Betaine Adducts of N‐Heterocyclic Carbenes: Synthesis, Properties, and Reactivity. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200801227] [Citation(s) in RCA: 148] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Lionel Delaude
- Center for Education and Research on Macromolecules (CERM), Institut de Chimie (B6a), Université de Liège, Sart‐Tilman par 4000 Liège, Belgium, Fax: +32‐4‐366‐3497
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Tran K, Lombardi PJ, Leighton JL. An Efficient Asymmetric Synthesis of Manzacidin C. Org Lett 2008; 10:3165-7. [DOI: 10.1021/ol8011869] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kristy Tran
- Department of Chemistry, Columbia University, New York, New York 10027
| | | | - James L. Leighton
- Department of Chemistry, Columbia University, New York, New York 10027
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Schmidt A, Beutler A, Albrecht M, Snovydovych B, Ramírez FJ. Imidazol-2-and-4-ylidene by decarboxylation. Studies on the cross-conjugated mesomeric betaine-alkaloid norzooanemonine and its pseudo-cross-conjugated isomer. Org Biomol Chem 2008; 6:287-95. [DOI: 10.1039/b716508k] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Hashimoto T, Maruoka K. Syntheses of manzacidins: a stage for the demonstration of synthetic methodologies. Org Biomol Chem 2007; 6:829-35. [PMID: 18292871 DOI: 10.1039/b716062c] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Manzacidins, a family of bromopyrrole alkaloids, have attracted much attention from the synthetic community due to their intriguing structures, bearing chiral tertiary and secondary stereocentres in a 1,3-relationship, and biological activities. In this article, we summarise the approaches for the preparation of manzacidins using novel synthetic methodologies. Organocatalysis and Lewis acid catalysis, as well as transition-metal catalysis, offered efficient ways to access these molecules.
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Affiliation(s)
- Takuya Hashimoto
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
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Berezin M, Achilefu S. Novel synthon for incorporating 1,3-dimethyl imidazolium group into molecular architecture. Tetrahedron Lett 2007; 48:1195-1199. [PMID: 17417670 PMCID: PMC1849869 DOI: 10.1016/j.tetlet.2006.12.051] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The synthesized 1,3-dimethylated imidazolium carbaldehydes serves as synthons for incorporating a permanently cationic imidazolium group into molecular framework. The utility of new synthon was demonstrated in a variety of reactions: Knoevenagel, Wittig, Schiff base formation, based mediated electrophilic substitution and oxidation, including synthesis of the natural product norzooanemonin.
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Affiliation(s)
- Mikhail Berezin
- Department of Radiology, Washington University School of Medicine, 4525 Scott Ave, St. Louis, MO 63110, USA
| | - Samuel Achilefu
- Department of Radiology, Washington University School of Medicine, 4525 Scott Ave, St. Louis, MO 63110, USA
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Abstract
This review describes the various manifestations of the pyrimidine system (alkylated, glycosylated, benzo-annelated.). These comprise pyrimidine nucleosides as well as alkaloids and antibiotics--some of them have been discovered and isolated from natural sources already long time ago, others have been reported very recently. A short overview on pyrimidine syntheses (prebiotic synthesis, biosynthesis, and metabolism) is given. The biological activities of most of the pyrimidine analogs are briefly described, and, in some cases, syntheses are formulated.
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Affiliation(s)
- Irene M Lagoja
- Laboratory of Medicinal Chemistry, Rega Institute for Medical Research, Katholieke Universiteit Leuven, Minderbroedersstraat 10, B-3000 Leuven.
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Vagias C, Tsitsimpikou C, Rapti T, Roussis V. 1,1′-Dimethyl-[2,2′]-Bipyridyldiium Salt from the BivalveCallista chione. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/10575630008043779] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Kang SH, Kang SY, Lee HS, Buglass AJ. Total synthesis of natural tert-alkylamino hydroxy carboxylic acids. Chem Rev 2006; 105:4537-58. [PMID: 16351053 DOI: 10.1021/cr040608g] [Citation(s) in RCA: 86] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sung Ho Kang
- Center for Molecular Design and Synthesis, Department of Chemistry, School of Molecular Science (BK21), Korea Advanced Institute of Science and Technology (KAIST), Daejeon
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Ohfune Y, Shinada T. Enantio‐ and Diastereoselective Construction of α,α‐Disubstituted α‐Amino Acids for the Synthesis of Biologically Active Compounds. European J Org Chem 2005. [DOI: 10.1002/ejoc.200500434] [Citation(s) in RCA: 274] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yasufumi Ohfune
- Department of Materials Science, Graduate School of Science, Osaka City University, Sugimoto, Sumiyoshi‐ku, Osaka 558‐8585, Japan
| | - Tetsuro Shinada
- Department of Materials Science, Graduate School of Science, Osaka City University, Sugimoto, Sumiyoshi‐ku, Osaka 558‐8585, Japan
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Aiello A, D'Esposito M, Fattorusso E, Menna M, Müller WE, Perović-Ottstadt S, Tsuruta H, Gulder TA, Bringmann G. Daminin, a bioactive pyrrole alkaloid from the Mediterranean sponge Axinella damicornis. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.05.025] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Gossauer A. Monopyrrolic natural compounds including tetramic acid derivatives. FORTSCHRITTE DER CHEMIE ORGANISCHER NATURSTOFFE = PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS. PROGRES DANS LA CHIMIE DES SUBSTANCES ORGANIQUES NATURELLES 2003; 86:1-188. [PMID: 12899123 DOI: 10.1007/978-3-7091-6029-9_1] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Albert Gossauer
- Department of Chemistry, University of Fribourg, Fribourg, Switzerland
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Schmidt A. Heterocyclic Mesomeric Betaines and Analogs in Natural Product Chemistry. Betainic Alkaloids and Nucleobases. ADVANCES IN HETEROCYCLIC CHEMISTRY VOLUME 85 2003. [DOI: 10.1016/s0065-2725(03)85002-x] [Citation(s) in RCA: 85] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Tsukamoto S, Tane K, Ohta T, Matsunaga S, Fusetani N, van Soest RW. Four new bioactive pyrrole-derived alkaloids from the marine sponge Axinella brevistyla. JOURNAL OF NATURAL PRODUCTS 2001; 64:1576-1578. [PMID: 11754618 DOI: 10.1021/np010280b] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Four new alkaloids (1-4) were isolated from the marine sponge Axinella brevistyla, and their structures were determined on the basis of spectroscopic analysis. The alkaloids 1-4 were antifungal against the yeast Saccharomyces cerevisiae at <1.0, <1.0, 30, and 100 microg/disk, respectively. Compounds 1-3 also exhibited cytotoxicity against L1210 cells with IC(50) values of 1.1, 0.66, and 2.5 microg/mL, respectively.
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Affiliation(s)
- S Tsukamoto
- Faculty of Pharmaceutical Sciences, Kanazawa University, Takara-machi, Kanazawa 920-0934, Japan.
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Schmidt A, Kindermann MK. π-Interactions of Modified Nucleobases. On Mesomeric Purine Betaines with Inversed Charge Properties. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2001. [DOI: 10.1246/bcsj.74.2379] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Alam N, Hong J, Lee CO, Im KS, Son BW, Choi JS, Choi WC, Jung JH. Montipyridine, a new pyridinium alkaloid from the stony coral montipora species. JOURNAL OF NATURAL PRODUCTS 2001; 64:956-957. [PMID: 11473434 DOI: 10.1021/np0100892] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A new pyridinium alkaloid, montipyridine (1), has been isolated from the stony coral Montipora sp. The structure was established from spectroscopic data.
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Affiliation(s)
- N Alam
- College of Pharmacy, Pusan National University, Pusan 609-735, Korea
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Abstract
Biofilms, accumulations of microorganisms at interfaces, have been described for every aqueous system supporting life. The structure of these microbial communities ranges from monolayers of scattered single cells to thick, mucous structures of macroscopic dimensions (microbial mats; algal-microbial associations; trickling filter biofilms). During recent years the structure of biofilms from many different environments has been documented and evaluated by use of a broad variety of microscopic, physico-chemical and molecular biological techniques, revealing a generally complex 3D structure. Parallel to these investigations more and more complex mathematical models and simulations were developed to explain the development, structures, and interactions of biofilms. The forces determining the spatial structure of biofilms, including microcolonies, extracellular polymeric substances (EPS), and channels, are still the subject of controversy. To achieve conclusive explanations for the structures observed in biofilms the cooperation of both fields of investigation, modelling and experimental research, is necessary. The expanding field of molecular techniques not only allows more and more detailed documentation of the spatial distribution of species, but also of functional activities of single cells in their biofilm environment. These new methods will certainly reveal new insights in the mechanisms involved in the developmental processes involved in the formation and behavior of biofilms.
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Affiliation(s)
- J Wimpenny
- Cardiff School of Biosciences, Cardiff University, UK
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Cafieri F, Fattorusso E, Taglialatela-Scafati O. Novel betaines from the marine sponge Agelas dispar. JOURNAL OF NATURAL PRODUCTS 1998; 61:1171-1173. [PMID: 9748394 DOI: 10.1021/np980157t] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Three novel betaine alkaloids, called aminozooanemonin (1), pyridinebetaine A (2), and pyridinebetaine B (3), have been isolated from the Caribbean sponge Agelas dispar. Their structures were determined by FABMS, IR, UV, and 1D and 2D NMR spectroscopic experiments. Aminozooanemonin and pyridinebetaine A showed moderate antibacterial activity.
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Affiliation(s)
- F Cafieri
- Dipartimento di Chimica delle Sostanze Naturali, via D. Montesano 49, I-80131 Napoli, Italy
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