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Feineis D, Bringmann G. Structural variety and pharmacological potential of naphthylisoquinoline alkaloids. THE ALKALOIDS. CHEMISTRY AND BIOLOGY 2024; 91:1-410. [PMID: 38811064 DOI: 10.1016/bs.alkal.2024.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
Naphthylisoquinoline alkaloids are a fascinating class of natural biaryl compounds. They show characteristic mono- and dimeric scaffolds, with chiral axes and stereogenic centers. Since the appearance of the last comprehensive overview on these secondary plant metabolites in this series in 1995, the number of discovered representatives has tremendously increased to more than 280 examples known today. Many novel-type compounds have meanwhile been discovered, among them naphthylisoquinoline-related follow-up products like e.g., the first seco-type (i.e., ring-opened) and ring-contracted analogues. As highlighted in this review, the knowledge on the broad structural chemodiversity of naphthylisoquinoline alkaloids has been decisively driven forward by extensive phytochemical studies on the metabolite pattern of Ancistrocladus abbreviatus from Coastal West Africa, which is a particularly "creative" plant. These investigations furnished a considerable number of more than 80-mostly new-natural products from this single species, with promising antiplasmodial activities and with pronounced cytotoxic effects against human leukemia, pancreatic, cervical, and breast cancer cells. Another unique feature of naphthylisoquinoline alkaloids is their unprecedented biosynthetic origin from polyketidic precursors and not, as usual for isoquinoline alkaloids, from aromatic amino acids-a striking example of biosynthetic convergence in nature. Furthermore, remarkable botanical results are presented on the natural producers of naphthylisoquinoline alkaloids, the paleotropical Dioncophyllaceae and Ancistrocladaceae lianas, including first investigations on the chemoecological role of these plant metabolites and their storage and accumulation in particular plant organs.
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Affiliation(s)
- Doris Feineis
- Institute of Organic Chemistry, University of Würzburg, Würzburg, Germany
| | - Gerhard Bringmann
- Institute of Organic Chemistry, University of Würzburg, Würzburg, Germany.
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2
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Roos CB, Chiang CH, Murray LAM, Yang D, Schulert L, Narayan ARH. Stereodynamic Strategies to Induce and Enrich Chirality of Atropisomers at a Late Stage. Chem Rev 2023; 123:10641-10727. [PMID: 37639323 DOI: 10.1021/acs.chemrev.3c00327] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Enantiomers, where chirality arises from restricted rotation around a single bond, are atropisomers. Due to the unique nature of the origins of their chirality, synthetic strategies to access these compounds in an enantioselective manner differ from those used to prepare enantioenriched compounds containing point chirality arising from an unsymmetrically substituted carbon center. In particular stereodynamic transformations, such as dynamic kinetic resolutions, thermodynamic dynamic resolutions, and deracemizations, which rely on the ability to racemize or interconvert enantiomers, are a promising set of transformations to prepare optically pure compounds in the late stage of a synthetic sequence. Translation of these synthetic approaches from compounds with point chirality to atropisomers requires an expanded toolbox for epimerization/racemization and provides an opportunity to develop a new conceptual framework for the enantioselective synthesis of these compounds.
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Cai J, Sun B, Yu S, Zhang H, Zhang W. Heck Macrocyclization in Forging Non-Natural Large Rings including Macrocyclic Drugs. Int J Mol Sci 2023; 24:ijms24098252. [PMID: 37175956 PMCID: PMC10179193 DOI: 10.3390/ijms24098252] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 05/01/2023] [Accepted: 05/03/2023] [Indexed: 05/15/2023] Open
Abstract
The intramolecular Heck reaction is a well-established strategy for natural product total synthesis. When constructing large rings, this reaction is also referred to as Heck macrocyclization, which has proved a viable avenue to access diverse naturally occurring macrocycles. Less noticed but likewise valuable, it has created novel macrocycles of non-natural origin that neither serve as nor derive from natural products. This review presents a systematic account of the title reaction in forging this non-natural subset of large rings, thereby addressing a topic rarely covered in the literature. Walking through two complementary sections, namely (1) drug discovery research and (2) synthetic methodology development, it demonstrates that beyond the well-known domain of natural product synthesis, Heck macrocyclization also plays a remarkable role in forming synthetic macrocycles, in particular macrocyclic drugs.
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Affiliation(s)
- Jiayou Cai
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300071, China
| | - Bin Sun
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300071, China
| | - Siqi Yu
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300071, China
| | - Han Zhang
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300071, China
| | - Weicheng Zhang
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300071, China
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4
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An DL, Wang LC, Zhang Y, Wu XF. Cobalt-catalyzed carbonylative acetylation of phenols. J Catal 2023. [DOI: 10.1016/j.jcat.2023.03.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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5
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Feineis D, Bringmann G. Asian Ancistrocladus Lianas as Creative Producers of Naphthylisoquinoline Alkaloids. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 2023; 119:1-335. [PMID: 36587292 DOI: 10.1007/978-3-031-10457-2_1] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
This book describes a unique class of secondary metabolites, the mono- and dimeric naphthylisoquinoline alkaloids. They occur in lianas of the paleotropical Ancistrocladaceae and Dioncophyllaceae families, exclusively. Their unprecedented structures include stereogenic centers and rotationally hindered, and thus likewise stereogenic, axes. Extended recent investigations on six Ancistrocladus species from Asia, as reported in this review, shed light on their fascinating phytochemical productivity, with over 100 such intriguing natural products. This high chemodiversity arises from a likewise unique biosynthesis from acetate-malonate units, following a novel polyketidic pathway to plant-derived isoquinoline alkaloids. Some of the compounds show most promising antiparasitic activities. Likewise presented are strategies for the regio- and stereoselective total synthesis of the alkaloids, including the directed construction of the chiral axis.
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Affiliation(s)
- Doris Feineis
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Gerhard Bringmann
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, 97074, Würzburg, Germany.
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6
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Tajuddeen N, Feineis D, Ihmels H, Bringmann G. The Stereoselective Total Synthesis of Axially Chiral Naphthylisoquinoline Alkaloids. Acc Chem Res 2022; 55:2370-2383. [PMID: 35980132 DOI: 10.1021/acs.accounts.2c00432] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The naphthylisoquinoline (NIQ) alkaloids are a thrilling class of natural biaryls─structurally, biosynthetically, and pharmacologically. A common feature of these metabolites is the biaryl bond between their naphthalene and isoquinoline moieties, which in most cases is rotationally hindered, leading to the phenomenon of axial chirality. Depending on their individual structures, including the respective axial configurations, NIQs show promising bioactivities. Their total synthesis is a challenging but rewarding goal, with the stereocontrolled construction of the biaryl linkage as the key step.The position of the biaryl axis and its configuration determine the overall molecular shape and thus the choice of the best possible method for efficient asymmetric aryl-aryl bond formation. The axis in NIQs can cover a broad range of steric hindrance, from freely rotating to configurationally stable. For dioncophylline B (1) and dioncophylline F (2a/b), with only two ortho-substituents next to the axis, the synthesis is easy to accomplish by direct coupling of the intact naphthalene moiety with the isoquinoline unit, and no atropo-selectivity is required.Naphthylisoquinolines with a configurationally stable biaryl axis are the focus of the present Account. They are more difficult to synthesize because, in addition to the problem of decreased chemical yields with increasing steric hindrance at the axis, the synthesis needs to proceed stereoselectively. Within this class of NIQs, 5,8'-coupled representatives, such as korupensamine A (3a), have received considerable synthetic attention because the rotational barrier is high enough for the existence of atropisomerism without being too excessive, and they show potent bioactivities. Their synthesis, as systematically presented herein, thus occupies a central role in this report. For their aryl-aryl bond formation, both intra- and intermolecular approaches can be successfully applied. Axial stereoinformation is introduced by internal asymmetric induction from stereogenic elements already present in the isoquinoline or its precursors, from chiral auxiliary elements artificially introduced, or by external asymmetric induction using chiral catalysts.To overcome even higher steric hindrance, as in ancistrocladine (4a), innovative approaches were developed. A most successful strategy is the "lactone concept" developed by the Bringmann group, which allows the directed synthesis of any desired atropisomer in high chemical and optical yields, thus permitting the atropo-divergent preparation of the two isomers from a single joint precursor. In this approach, the two formal tasks of stereoselective biaryl synthesis, which are usually done simultaneously─the C-C linkage and the asymmetric induction─are achieved consecutively. The coupling step is performed intramolecularly after prefixation of the coupling partners by an ester bridge. The resulting biaryl lactone already possesses the biaryl axis but is still configurationally unstable; it can then, with internal or external asymmetric induction, be cleaved atropo-divergently with high stereoselectivities. Besides its unique concept, the procedure excels by its broad applicability; among all presented methods, it has been used for the synthesis of the largest number of NIQs, more than 20 representatives, including those with the highest steric hindrance.This Account gives comprehensive insight into the plethora of conceptual approaches for the efficient formation of the hindered biaryl bond of NIQs.
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Affiliation(s)
- Nasir Tajuddeen
- Department of Chemistry, Ahmadu Bello University, 15 Sokoto Road Samaru, 810107 Zaria, Nigeria
| | - Doris Feineis
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Heiko Ihmels
- Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein-Str. 2, 57068 Siegen, Germany
| | - Gerhard Bringmann
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany
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Vroemans R, Ribone SR, Thomas J, Van Meervelt L, Ollevier T, Dehaen W. Synthesis of homochiral sulfanyl- and sulfoxide-substituted naphthyltriazoles and study of the conformational stability. Org Biomol Chem 2021; 19:6521-6526. [PMID: 34254109 DOI: 10.1039/d1ob00784j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The preparation of a series of novel homochiral atropisomeric sulfanyl- and sulfoxide-substituted naphthyltriazoles is described. The triazolization methodology used presents a new way towards novel and highly stable 1,2,3-triazole-based atropisomers, and introduces a new and complementary synthetic pathway towards 4-sulfanyl substituted 1,2,3-triazoles. Starting from sulfanyl-substituted naphthyl ketones, enantiopure amines, and 4-nitrophenyl azide, a collection of 16 sulfanyl-substituted naphthyltriazoles were obtained via the triazolization reaction in which the homochiral diastereomers are readily isolated. Subsequent monooxidation results in the preparation of several sulfoxide-substituted naphthyltriazoles. The absolute configuration of a set of diastereomeric sulfanyl- and sulfoxide-appended naphthyltriazoles was deduced via X-ray crystallography. Furthermore, the conformational stability of the atropisomers was determined experimentally, and further confirmed and analyzed with the aid of computational DFT calculations.
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Affiliation(s)
- Robby Vroemans
- Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium.
| | - Sergio R Ribone
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA, CONICET), Dpto. Ciencias Farmacéuticas, Fac. Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba X5000HUA, Argentina
| | - Joice Thomas
- Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium.
| | - Luc Van Meervelt
- Biochemistry, Molecular and Structural Biology, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Thierry Ollevier
- Département de chimie, Pavillon Alexandre-Vachon, Université Laval, 1045 avenue de la Médecine, Québec, QC G1V 0A6, Canada
| | - Wim Dehaen
- Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium.
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Das S, Bhowmik A, Sarkar W, Mishra A, Deb I. Straightforward Access to Anthrone Functionalized Benzylic Amines via Organocatalytic 1,2-Addition of Anthrones to Imines at Ambient Temperature. J Org Chem 2021; 86:4131-4142. [PMID: 33620226 DOI: 10.1021/acs.joc.0c02959] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Activation of anthrone via benzylic deprotonation in the presence of triethylamine paves the way for the 1,2-addition reaction with imines to provide the desired functionalized anthrones in good to excellent yields under mild and operationally simple reaction conditions with a broad range of substrate scopes without using any external additives or toxic stoichiometric reagents.
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Affiliation(s)
- Sumit Das
- Organic and Medicinal Chemistry Division, CSIR - Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Arup Bhowmik
- Organic and Medicinal Chemistry Division, CSIR - Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Writhabrata Sarkar
- Organic and Medicinal Chemistry Division, CSIR - Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Aniket Mishra
- Organic and Medicinal Chemistry Division, CSIR - Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Indubhusan Deb
- Organic and Medicinal Chemistry Division, CSIR - Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
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9
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Ueda M, Kokubun M, Mazaki Y. Triskelion‐Shaped π‐Luminophores Bearing Coumarin: Syntheses, Structures, and Luminescence Properties. CHEMPHOTOCHEM 2020. [DOI: 10.1002/cptc.202000049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Masafumi Ueda
- Department of Chemistry, Graduate School of Science Kitasato University 1-15-1 Kitasato Minami-ku Sagamihara Kanagawa 252-0373 Japan
| | - Mirai Kokubun
- Department of Chemistry, Graduate School of Science Kitasato University 1-15-1 Kitasato Minami-ku Sagamihara Kanagawa 252-0373 Japan
| | - Yasuhiro Mazaki
- Department of Chemistry, Graduate School of Science Kitasato University 1-15-1 Kitasato Minami-ku Sagamihara Kanagawa 252-0373 Japan
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10
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Sirazhetdinova NS, Savelyev VA, Frolova TS, Baev DS, Klimenko LS, Chernikov IV, Oleshko OS, Sarojan TA, Pokrovskii AG, Shults EE. 1-Hydroxyanthraquinones Containing Aryl Substituents as Potent and Selective Anticancer Agents. Molecules 2020; 25:molecules25112547. [PMID: 32486108 PMCID: PMC7321108 DOI: 10.3390/molecules25112547] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 05/27/2020] [Accepted: 05/28/2020] [Indexed: 12/16/2022] Open
Abstract
A series of 1,2-, 1,4-disubstituted or 1,2,4-trisubstituted anthraquinone-based compounds was designed, synthesized, characterized and biologically evaluated for anticancer efficacy. 2- or 4-arylated 1-hydroxy-9,10-antraquinones (anthracene-9,10-diones) were prepared by Suzuki–Miyaura cross-coupling reaction of 1-hydroxy-2-bromoanthraquinone, 1-hydroxy-4-iodoanthraquinone or 1-hydroxy-2,4-dibromoanthraquinone with arylboronic acids. The cross-coupling reaction of 2,4-dibromo-9,10-anthraquinone with arylboronic acids provide a convenient approach to 2,4-bis arylated 1-hydroxyanthraquinones with a variety of aryl substituent in the 2 and 4 position. The cytotoxicity of new anthraquinone derivatives was evaluated using the conventional MTT assays. The data revealed that six of the aryl substituted compounds among the entire series 3, 15, 16, 25, 27, 28 were comparable potent with the commercially available reference drug doxorubicin on the human glioblastoma cells SNB-19, prostate cancer DU-145 or breast cancer cells MDA-MB-231 and were relatively safe towards human telomerase (h-TERT)immortalized lung fibroblasts cells. The results suggested that the in vitro antitumor activity of synthesized 2-aryl, 4-aryl- and 2,4-diaryl substituted 1-hydroxyanthraquinones depends on the nature of the substituent within the cyclic backbone. Docking interaction of 2-, 4-substituted and 2,4-disubstituted 1-hydroxyanthraquinones indicates intercalative mode of binding of compounds with DNA topoisomerase. The interaction with the DNA of 4-aryl-13, 15, 16 and 4-(furan-3-yl)-23 1-hydroxyanthraquinones was experimentally confirmed through a change in electroforetic mobility. Further experiments with 1-hydroxy-4-phenyl-anthraquinone 13 demonstrated that the compound induced cell cycle arrest at sub-G1 phase in DU-145 cells in the concentration 1.1 μM, which is probably achieved by inducing apoptosis. 4-Arylsubstituted 1-hydroxyanthraquinones 13 and 16 induced the enhancement of DNA synthesis on SNB19 cell lines.
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Affiliation(s)
- Nafisa S. Sirazhetdinova
- Laboratory of Medicinal Chemistry, N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, Lavrentyev Ave, 9, 630090 Novosibirsk, Russia; (N.S.S.); (V.A.S.); (D.S.B.)
| | - Victor A. Savelyev
- Laboratory of Medicinal Chemistry, N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, Lavrentyev Ave, 9, 630090 Novosibirsk, Russia; (N.S.S.); (V.A.S.); (D.S.B.)
| | - Tatyana S. Frolova
- The Federal Research Center Institute of Cytology and Genetics, Acad. Lavrentyev Ave., 10, 630090 Novosibirsk, Russia;
- Novosibirsk State University, Pirogova Str. 1, 630090 Novosibirsk, Russia; (O.S.O.); (T.A.S.); (A.G.P.)
| | - Dmitry S. Baev
- Laboratory of Medicinal Chemistry, N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, Lavrentyev Ave, 9, 630090 Novosibirsk, Russia; (N.S.S.); (V.A.S.); (D.S.B.)
| | | | - Ivan V. Chernikov
- Institute of Chemical Biology and Fundamental Medicine Siberian Branch of the Russian Academy of Sciences, Lavrentyev Ave, 9, 630090 Novosibirsk, Russia;
| | - Olga S. Oleshko
- Novosibirsk State University, Pirogova Str. 1, 630090 Novosibirsk, Russia; (O.S.O.); (T.A.S.); (A.G.P.)
| | - Teresa A. Sarojan
- Novosibirsk State University, Pirogova Str. 1, 630090 Novosibirsk, Russia; (O.S.O.); (T.A.S.); (A.G.P.)
| | - Andrey G. Pokrovskii
- Novosibirsk State University, Pirogova Str. 1, 630090 Novosibirsk, Russia; (O.S.O.); (T.A.S.); (A.G.P.)
| | - Elvira E. Shults
- Laboratory of Medicinal Chemistry, N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, Lavrentyev Ave, 9, 630090 Novosibirsk, Russia; (N.S.S.); (V.A.S.); (D.S.B.)
- Correspondence: ; Fax: +7-383-330-9752
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Lin R, Mitchell S, Netscher T, Medlock J, Stemmler RT, Bonrath W, Létinois U, Pérez-Ramírez J. Substrate substitution effects in the Fries rearrangement of aryl esters over zeolite catalysts. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00590h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The reaction scheme of the Fries rearrangement of aryl esters over zeolite catalysts strongly depends on the framework type, acidic properties, and substrate identity.
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Affiliation(s)
- Ronghe Lin
- Institute for Chemical and Bioengineering
- Department of Chemistry and Applied Biosciences
- ETH Zurich
- Zurich 8093
- Switzerland
| | - Sharon Mitchell
- Institute for Chemical and Bioengineering
- Department of Chemistry and Applied Biosciences
- ETH Zurich
- Zurich 8093
- Switzerland
| | - Thomas Netscher
- DSM Nutritional Products
- Research and Development
- Basel 4002
- Switzerland
| | - Jonathan Medlock
- DSM Nutritional Products
- Research and Development
- Basel 4002
- Switzerland
| | - René T. Stemmler
- DSM Nutritional Products
- Research and Development
- Basel 4002
- Switzerland
| | - Werner Bonrath
- DSM Nutritional Products
- Research and Development
- Basel 4002
- Switzerland
| | - Ulla Létinois
- DSM Nutritional Products
- Research and Development
- Basel 4002
- Switzerland
| | - Javier Pérez-Ramírez
- Institute for Chemical and Bioengineering
- Department of Chemistry and Applied Biosciences
- ETH Zurich
- Zurich 8093
- Switzerland
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12
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Zeng Z, Zhao Y, Zhang Y. Divergent total syntheses of five illudalane sesquiterpenes and assignment of the absolute configuration. Chem Commun (Camb) 2019; 55:4250-4253. [PMID: 30901009 DOI: 10.1039/c9cc00933g] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Concise, divergent total syntheses of five bioactive illudalane sesquiterpenes have been achieved. Our synthesis features an intermolecular [2+2+2] cycloaddition, and a lactone-directed aromatic C-H oxygenation to generate a temporary phenolic hydroxyl group which enables regioselective methylation. Furthermore, the absolute configuration of radulactone was assigned by chemical synthesis.
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Affiliation(s)
- Zhixiong Zeng
- Department of Chemistry and Key Laboratory of Chemical Biology of Fujian Province, iChEM, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China.
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13
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Heravi MM, Zadsirjan V, Saedi P, Momeni T. Applications of Friedel-Crafts reactions in total synthesis of natural products. RSC Adv 2018; 8:40061-40163. [PMID: 35558228 PMCID: PMC9091380 DOI: 10.1039/c8ra07325b] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Accepted: 11/03/2018] [Indexed: 12/17/2022] Open
Abstract
Over the years, Friedel-Crafts (FC) reactions have been acknowledged as the most useful and powerful synthetic tools for the construction of a special kind of carbon-carbon bond involving an aromatic moiety. Its stoichiometric and, more recently, its catalytic procedures have extensively been studied. This reaction in recent years has frequently been used as a key step (steps) in the total synthesis of natural products and targeted complex bioactive molecules. In this review, we try to underscore the applications of intermolecular and intramolecular FC reactions in the total syntheses of natural products and complex molecules, exhibiting diverse biological properties.
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Affiliation(s)
- Majid M Heravi
- Department of Chemistry, School of Science, Alzahra University Vanak Tehran Iran +98 2188041344 +98 9121329147
| | - Vahideh Zadsirjan
- Department of Chemistry, School of Science, Alzahra University Vanak Tehran Iran +98 2188041344 +98 9121329147
| | - Pegah Saedi
- Department of Chemistry, School of Science, Alzahra University Vanak Tehran Iran +98 2188041344 +98 9121329147
| | - Tayebeh Momeni
- Department of Chemistry, School of Science, Alzahra University Vanak Tehran Iran +98 2188041344 +98 9121329147
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15
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Mori K, Itakura T, Akiyama T. Enantiodivergent Atroposelective Synthesis of Chiral Biaryls by Asymmetric Transfer Hydrogenation: Chiral Phosphoric Acid Catalyzed Dynamic Kinetic Resolution. Angew Chem Int Ed Engl 2016; 55:11642-6. [DOI: 10.1002/anie.201606063] [Citation(s) in RCA: 132] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Indexed: 12/13/2022]
Affiliation(s)
- Keiji Mori
- Department of Chemistry; Faculty of Science; Gakushuin University; 1-5-1 Mejiro, Toshima-ku Tokyo 171-8588 Japan
- Department of Applied Chemistry; Graduate School of Engineering; Tokyo University of Agriculture and Technology; 2-24-16 Nakacho, Koganei Tokyo 184-8588 Japan
| | - Tsubasa Itakura
- Department of Chemistry; Faculty of Science; Gakushuin University; 1-5-1 Mejiro, Toshima-ku Tokyo 171-8588 Japan
| | - Takahiko Akiyama
- Department of Chemistry; Faculty of Science; Gakushuin University; 1-5-1 Mejiro, Toshima-ku Tokyo 171-8588 Japan
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Enantiodivergent Atroposelective Synthesis of Chiral Biaryls by Asymmetric Transfer Hydrogenation: Chiral Phosphoric Acid Catalyzed Dynamic Kinetic Resolution. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201606063] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Bringmann G, Manchala N, Büttner T, Hertlein-Amslinger B, Seupel R. First Atroposelective Total Synthesis of Enantiomerically Pure Ancistrocladidine and Ancistrotectorine. Chemistry 2016; 22:9792-6. [DOI: 10.1002/chem.201600701] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Gerhard Bringmann
- Institut für Organische Chemie; Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Narasimhulu Manchala
- Institut für Organische Chemie; Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Tobias Büttner
- Institut für Organische Chemie; Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | | | - Raina Seupel
- Institut für Organische Chemie; Universität Würzburg; Am Hubland 97074 Würzburg Germany
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18
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Yu C, Huang H, Li X, Zhang Y, Wang W. Dynamic Kinetic Resolution of Biaryl Lactones via a Chiral Bifunctional Amine Thiourea-Catalyzed Highly Atropo-enantioselective Transesterification. J Am Chem Soc 2016; 138:6956-9. [DOI: 10.1021/jacs.6b03609] [Citation(s) in RCA: 122] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Chenguang Yu
- Department of Chemistry & Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131-0001, United States
| | - He Huang
- Department of Chemistry & Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131-0001, United States
| | - Xiangmin Li
- Department of Chemistry & Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131-0001, United States
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, and State Key Laboratory of Bioengineering Reactor, East China University of Science & Technology, Shanghai 200237, China
| | - Yueteng Zhang
- Department of Chemistry & Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131-0001, United States
| | - Wei Wang
- Department of Chemistry & Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131-0001, United States
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, and State Key Laboratory of Bioengineering Reactor, East China University of Science & Technology, Shanghai 200237, China
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19
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Kim H, Min KI, Inoue K, Im DJ, Kim DP, Yoshida JI. Submillisecond organic synthesis: Outpacing Fries rearrangement through microfluidic rapid mixing. Science 2016; 352:691-4. [DOI: 10.1126/science.aaf1389] [Citation(s) in RCA: 165] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 03/28/2016] [Indexed: 01/08/2023]
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20
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Mori K, Kobayashi M, Itakura T, Akiyama T. Enantioselective Synthesis of Chiral Biaryl Chlorides/Iodides by a Chiral Phosphoric Acid Catalyzed Sequential Halogenation Strategy. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400611] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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21
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Korb M, Lang H. Planar Chirality from the Chiral Pool: Diastereoselective Anionic Phospho-Fries Rearrangements at Ferrocene. Organometallics 2014. [DOI: 10.1021/om500953c] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Marcus Korb
- Technische Universität Chemnitz, Faculty of Natural Sciences, Institute
of Chemistry, Inorganic Chemistry, Straße der Nationen 62, D-09107 Chemnitz, Germany
| | - Heinrich Lang
- Technische Universität Chemnitz, Faculty of Natural Sciences, Institute
of Chemistry, Inorganic Chemistry, Straße der Nationen 62, D-09107 Chemnitz, Germany
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22
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Oliva-Madrid MJ, García-López JA, Saura-Llamas I, Bautista D, Vicente J. Insertion Reactions on Carbopalladated Benzyne: From Eight- to Nine- and Ten-Membered Palladacycles. Applications to the Synthesis of N-Heterocycles. Organometallics 2014. [DOI: 10.1021/om500772p] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- María-José Oliva-Madrid
- Grupo
de Química Organometálica, Departamento de Química
Inorgánica, Facultad de Química, Universidad de Murcia, E-301001 Murcia, Spain
| | - José-Antonio García-López
- Grupo
de Química Organometálica, Departamento de Química
Inorgánica, Facultad de Química, Universidad de Murcia, E-301001 Murcia, Spain
| | - Isabel Saura-Llamas
- Grupo
de Química Organometálica, Departamento de Química
Inorgánica, Facultad de Química, Universidad de Murcia, E-301001 Murcia, Spain
| | | | - José Vicente
- Grupo
de Química Organometálica, Departamento de Química
Inorgánica, Facultad de Química, Universidad de Murcia, E-301001 Murcia, Spain
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23
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Zhou XM, Zheng CJ, Chen GY, Song XP, Han CR, Li GN, Fu YH, Chen WH, Niu ZG. Bioactive anthraquinone derivatives from the mangrove-derived fungus Stemphylium sp. 33231. JOURNAL OF NATURAL PRODUCTS 2014; 77:2021-2028. [PMID: 25136754 DOI: 10.1021/np500340y] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Four new anthraquinone derivatives (1-4) and four new alterporriol-type anthranoid dimers (14-17), along with 17 analogues, were isolated from the solid rice fermentation of the fungus Stemphylium sp. 33231 obtained from the mangrove Bruguiera sexangula var. rhynchopetala collected from the South China Sea. Their structures were elucidated using comprehensive spectroscopic methods. The absolute configurations of 1, 3, and 4 were determined by single-crystal X-ray diffraction of their derivatives (1a, 3b, and 4a). The absolute configurations of the chiral 17-19 were determined by comparing their CD spectra with 21. The inhibitory activities of most of the compounds against seven terrestrial pathogenic bacteria and two cancer cell lines were evaluated.
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Affiliation(s)
- Xue-Ming Zhou
- Key Laboratory of Tropical Medicinal Plant Chemistry of Ministry of Education, Hainan Normal University , Haikou 571158, People's Republic of China
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24
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Percivalle C, Sissi C, Greco ML, Musetti C, Mariani A, Artese A, Costa G, Perrore ML, Alcaro S, Freccero M. Aryl ethynyl anthraquinones: a useful platform for targeting telomeric G-quadruplex structures. Org Biomol Chem 2014; 12:3744-54. [DOI: 10.1039/c4ob00220b] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
2,7-Diaryl ethynyl anthraquinones have been synthesized by Sonogashira cross-coupling and evaluated as telomeric G-quadruplex ligands, with good G-quadruplex/duplex selectivity.
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Affiliation(s)
| | - Claudia Sissi
- Department of Pharmaceutical and Pharmacological Sciences
- 35131 Padova, Italy
| | - Maria Laura Greco
- Department of Pharmaceutical and Pharmacological Sciences
- 35131 Padova, Italy
| | - Caterina Musetti
- Department of Pharmaceutical and Pharmacological Sciences
- 35131 Padova, Italy
| | | | - Anna Artese
- Dipartimento di Scienze della Salute
- Universitá di Catanzaro
- 88100 Catanzaro, Italy
| | - Giosuè Costa
- Dipartimento di Scienze della Salute
- Universitá di Catanzaro
- 88100 Catanzaro, Italy
| | | | - Stefano Alcaro
- Dipartimento di Scienze della Salute
- Universitá di Catanzaro
- 88100 Catanzaro, Italy
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25
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Graff J, Debande T, Praz J, Guénée L, Alexakis A. Asymmetric Bromine–Lithium Exchange: Application toward the Synthesis of Natural Product. Org Lett 2013; 15:4270-3. [DOI: 10.1021/ol4021157] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Julien Graff
- Department of Organic Chemistry and Laboratory of Crystallography, University of Geneva, Quai Ernest Ansermet 30, Geneva 4, CH-1211 Switzerland
| | - Thibaut Debande
- Department of Organic Chemistry and Laboratory of Crystallography, University of Geneva, Quai Ernest Ansermet 30, Geneva 4, CH-1211 Switzerland
| | - Jézabel Praz
- Department of Organic Chemistry and Laboratory of Crystallography, University of Geneva, Quai Ernest Ansermet 30, Geneva 4, CH-1211 Switzerland
| | - Laure Guénée
- Department of Organic Chemistry and Laboratory of Crystallography, University of Geneva, Quai Ernest Ansermet 30, Geneva 4, CH-1211 Switzerland
| | - Alexandre Alexakis
- Department of Organic Chemistry and Laboratory of Crystallography, University of Geneva, Quai Ernest Ansermet 30, Geneva 4, CH-1211 Switzerland
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26
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Mori K, Ichikawa Y, Kobayashi M, Shibata Y, Yamanaka M, Akiyama T. Enantioselective Synthesis of Multisubstituted Biaryl Skeleton by Chiral Phosphoric Acid Catalyzed Desymmetrization/Kinetic Resolution Sequence. J Am Chem Soc 2013; 135:3964-70. [DOI: 10.1021/ja311902f] [Citation(s) in RCA: 243] [Impact Index Per Article: 22.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Keiji Mori
- Department of Chemistry, Faculty
of Science, Gakushuin University, 1-5-1
Mejiro, Toshima-ku, Tokyo 171-8588, Japan
| | - Yuki Ichikawa
- Department of Chemistry, Faculty
of Science, Gakushuin University, 1-5-1
Mejiro, Toshima-ku, Tokyo 171-8588, Japan
| | - Manato Kobayashi
- Department of Chemistry, Faculty
of Science, Gakushuin University, 1-5-1
Mejiro, Toshima-ku, Tokyo 171-8588, Japan
| | - Yukihiro Shibata
- Department of Chemistry, Faculty
of Science, Rikkyo University, 3-34-1 Nishi-Ikebukuro,
Toshima-ku, Tokyo 171-8501, Japan
| | - Masahiro Yamanaka
- Department of Chemistry, Faculty
of Science, Rikkyo University, 3-34-1 Nishi-Ikebukuro,
Toshima-ku, Tokyo 171-8501, Japan
| | - Takahiko Akiyama
- Department of Chemistry, Faculty
of Science, Gakushuin University, 1-5-1
Mejiro, Toshima-ku, Tokyo 171-8588, Japan
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27
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Karmakar R, Mal D. Total Synthesis of Chlorocyclinone A, a PPAR-γ Antagonist. J Org Chem 2012; 77:10235-48. [DOI: 10.1021/jo301712b] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Raju Karmakar
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, India
| | - Dipakranjan Mal
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, India
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28
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Funktionalisierung von C-H-Bindungen: neue Synthesemethoden für Naturstoffe und Pharmazeutika. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201201666] [Citation(s) in RCA: 756] [Impact Index Per Article: 63.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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29
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Yamaguchi J, Yamaguchi AD, Itami K. CH Bond Functionalization: Emerging Synthetic Tools for Natural Products and Pharmaceuticals. Angew Chem Int Ed Engl 2012; 51:8960-9009. [DOI: 10.1002/anie.201201666] [Citation(s) in RCA: 2423] [Impact Index Per Article: 201.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2012] [Indexed: 01/04/2023]
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30
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Huang CH, Pan JH, Chen B, Yu M, Huang HB, Zhu X, Lu YJ, She ZG, Lin YC. Three bianthraquinone derivatives from the mangrove endophytic fungus Alternaria sp. ZJ9-6B from the South China Sea. Mar Drugs 2011; 9:832-843. [PMID: 21673892 PMCID: PMC3111185 DOI: 10.3390/md9050832] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2011] [Revised: 04/20/2011] [Accepted: 05/04/2011] [Indexed: 02/03/2023] Open
Abstract
Three new bianthraquinone derivatives, alterporriol K (1), L (2) and M (3), along with six known compounds were obtained from extracts of the endophytic fungus Alternaria sp. ZJ9-6B, isolated from the mangrove Aegiceras corniculatum collected in the South China Sea. Their structures were elucidated by one- and two-dimensional NMR spectroscopy, MS data analysis and circular dichroism measurements. Compounds 1, 2 and 3 were first isolated alterporriols with a C-2–C-2′ linkage. The crystallographic data of tetrahydroaltersolanol B (7) was reported for the first time. In the primary bioassays, alterporriol K and L exhibited moderate cytotoxic activity towards MDA-MB-435 and MCF-7 cells with IC50 values ranging from 13.1 to 29.1 μM.
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Affiliation(s)
- Cai-Huan Huang
- School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China; E-Mails: (C.-H.H.); (J.-H.P.); (B.C.); (H.-B.H.); (Z.-G.S.)
- School of Science and Engineering, Jinan University, Guangzhou 510632, China; E-Mail:
| | - Jia-Hui Pan
- School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China; E-Mails: (C.-H.H.); (J.-H.P.); (B.C.); (H.-B.H.); (Z.-G.S.)
| | - Bin Chen
- School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China; E-Mails: (C.-H.H.); (J.-H.P.); (B.C.); (H.-B.H.); (Z.-G.S.)
| | - Miao Yu
- School of Science and Engineering, Jinan University, Guangzhou 510632, China; E-Mail:
| | - Hong-Bo Huang
- School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China; E-Mails: (C.-H.H.); (J.-H.P.); (B.C.); (H.-B.H.); (Z.-G.S.)
| | - Xun Zhu
- Guangdong Province Key Laboratory of Functional Molecules in Oceanic Microorganism (Sun Yat-sen University), Bureau of Education of Guangdong, Guangzhou 510080, China; E-Mail:
| | - Yong-Jun Lu
- School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China; E-Mail:
| | - Zhi-Gang She
- School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China; E-Mails: (C.-H.H.); (J.-H.P.); (B.C.); (H.-B.H.); (Z.-G.S.)
- Guangdong Province Key Laboratory of Functional Molecules in Oceanic Microorganism (Sun Yat-sen University), Bureau of Education of Guangdong, Guangzhou 510080, China; E-Mail:
| | - Yong-Cheng Lin
- School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China; E-Mails: (C.-H.H.); (J.-H.P.); (B.C.); (H.-B.H.); (Z.-G.S.)
- Guangdong Province Key Laboratory of Functional Molecules in Oceanic Microorganism (Sun Yat-sen University), Bureau of Education of Guangdong, Guangzhou 510080, China; E-Mail:
- Author to whom correspondence should be addressed; E-Mail: ; Tel./Fax: +86-20-8403-9623
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31
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Kraus GA, Gupta V. Divergent Approach to Flavones and Aurones via Dihaloacrylic Acids. Unexpected Dependence on the Halogen Atom. Org Lett 2010; 12:5278-80. [DOI: 10.1021/ol1023294] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- George A. Kraus
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Vinayak Gupta
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
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32
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Bringmann G, Gulder T, Gulder TAM, Breuning M. Atroposelective Total Synthesis of Axially Chiral Biaryl Natural Products. Chem Rev 2010; 111:563-639. [DOI: 10.1021/cr100155e] [Citation(s) in RCA: 909] [Impact Index Per Article: 64.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Gerhard Bringmann
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Tanja Gulder
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Tobias A. M. Gulder
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Matthias Breuning
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany
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33
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Venkata Prasad J, Prabhakar M, Manjulatha K, Rambabu D, Anand Solomon K, Gopi Krishna G, Anil Kumar K. Efficient catalyst-free Domino approach for the synthesis of novel 2-benzazepine derivatives in water. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.04.020] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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34
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Yamada M, Rivera-Fuentes P, Schweizer W, Diederich F. Optische Stabilität axial-chiraler push-pull-substituierter Buta-1,3-diene: Effekt einer einzelnen Methylgruppe auf der Oberfläche von C60. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.200906853] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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35
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Yamada M, Rivera-Fuentes P, Schweizer W, Diederich F. Optical Stability of Axially Chiral Push-Pull-Substituted Buta-1,3-dienes: Effect of a Single Methyl Group on the C60 Surface. Angew Chem Int Ed Engl 2010; 49:3532-5. [DOI: 10.1002/anie.200906853] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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36
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Singh IP, Sidana J, Bharate SB, Foley WJ. Phloroglucinol compounds of natural origin: Synthetic aspects. Nat Prod Rep 2010; 27:393-416. [DOI: 10.1039/b914364p] [Citation(s) in RCA: 170] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Sriram M, Hall JJ, Grohmann NC, Strecker TE, Wootton T, Franken A, Trawick ML, Pinney KG. Design, synthesis and biological evaluation of dihydronaphthalene and benzosuberene analogs of the combretastatins as inhibitors of tubulin polymerization in cancer chemotherapy. Bioorg Med Chem 2008; 16:8161-71. [PMID: 18722127 DOI: 10.1016/j.bmc.2008.07.050] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2008] [Revised: 07/17/2008] [Accepted: 07/17/2008] [Indexed: 02/08/2023]
Abstract
A novel series of dihydronaphthalene and benzosuberene analogs bearing structural similarity to the combretastatins in terms of 1,2-diarylethene, trimethoxyphenyl, and biaryl functionality has been synthesized. The compounds have been evaluated in regard to their ability to inhibit tubulin assembly and for their cytotoxicity against selected human cancer cell lines. From this series of compounds, benzosuberene analogs 2 and 4 inhibited tubulin assembly at concentrations comparable to that of combretastatin A-4 (CA4) and combretastatin A-1 (CA1). Furthermore, analog 4 demonstrated remarkable cytotoxicity against the three human cancer cell lines evaluated (for example GI(50)=0.0000032 microM against DU-145 prostate carcinoma).
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Affiliation(s)
- Madhavi Sriram
- Department of Chemistry and Biochemistry, Baylor University, One Bear Place, Waco, TX 76798, USA
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38
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Tietze L, Redert T, Bell H, Hellkamp S, Levy L. Efficient Synthesis of the Structural Core of Tetracyclines by a Palladium-Catalyzed Domino Tsuji–Trost–Heck–Mizoroki Reaction. Chemistry 2008; 14:2527-35. [DOI: 10.1002/chem.200701676] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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39
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Bringmann G, Mutanyatta-Comar J, Maksimenka K, Wanjohi J, Heydenreich M, Brun R, Müller W, Peter M, Midiwo J, Yenesew A. Joziknipholones A and B: The First Dimeric Phenylanthraquinones, from the Roots ofBulbine frutescens. Chemistry 2008; 14:1420-9. [DOI: 10.1002/chem.200701328] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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40
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Bringmann G, Mutanyatta-Comar J, Knauer M, Abegaz BM. Knipholone and related 4-phenylanthraquinones: structurally, pharmacologically, and biosynthetically remarkable natural products. Nat Prod Rep 2008; 25:696-718. [DOI: 10.1039/b803784c] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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41
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42
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Tietze LF, Singidi RR, Gericke KM. Total Synthesis of the Proposed Structure of the Anthrapyran Metabolite δ-Indomycinone. Chemistry 2007; 13:9939-47. [PMID: 17886848 DOI: 10.1002/chem.200700823] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The first total synthesis of the proposed structure of delta-indomycinone has been accomplished. The key steps involve the Diels-Alder reaction of a bromonaphthoquinone (6) and 1-methoxy-3-methyl-1-trimethylsiloxy-1,3-butadiene (7) to access the anthraquinone skeleton, representing a common building block of other naturally occurring anthraquinone antibiotics, regioselective bromination of anthraquinone (14) and a highly diastereoselective alkylation of enantiomerically pure dioxolanone 8. The reported synthetic approach has the advantage of high yields, excellent selectivity and a remarkable general applicability for the total synthesis of other anthrapyran natural products. The spectroscopic data obtained for the synthetic compounds 2 and 36 are not in agreement with those reported for the natural product, and therefore revision of the assigned structure is required.
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Affiliation(s)
- Lutz F Tietze
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität, Tammannstrasse 2, Göttingen, Germany.
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43
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Tietze LF, Gericke KM, Schuberth I. Synthesis of Highly Functionalized Anthraquinones and Evaluation of Their Antitumor Activity. European J Org Chem 2007. [DOI: 10.1002/ejoc.200700418] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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44
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Bringmann G, Maksimenka K, Mutanyatta-Comar J, Knauer M, Bruhn T. The absolute axial configurations of knipholone and knipholone anthrone by TDDFT and DFT/MRCI CD calculations: a revision. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.07.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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45
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Bringmann G, Noll TF, Gulder T, Dreyer M, Grüne M, Moskau D. Polyketide Folding in Higher Plants: Biosynthesis of the Phenylanthraquinone Knipholone. J Org Chem 2007; 72:3247-52. [PMID: 17388630 DOI: 10.1021/jo062566x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The biosynthesis of knipholone, as an axially chiral phenylanthraquinone, in higher plants was examined by feeding experiments with [13C2]-labeled precursors. [13C2]-Acetate and advanced synthetic intermediates were fed to sterile cultures of Kniphofia pumila (Asphodelaceae), with subsequent NMR analysis on the isolated natural product involving 2D INADEQUATE and SELINQUATE experiments. Due to its uneven number of carbon atoms, and because of its uncertain decarboxylation site, the "northern" part of the molecule (i.e., the chrysophanol portion) might originate from four different cyclization modes. According to the labeling pattern of the product isolated after incorporation, this anthraquinone part of knipholone is formed by the so-called F folding mode (originally established for fungi). The acetophenone part of the molecule, which does not undergo a decarboxylation reaction, originates from four acetate units. The surprising lack of randomization of the intact [13C2] units in this "southern" part reveals the absence of a free symmetric intermediate as initially anticipated. This is in agreement with the intact incorporation of the "authentic" southern molecular portion, 4,6-dihydroxy-2-methoxyacetophenone, while the corresponding symmetrical candidate trihydroxyacetophenone was clearly not incorporated, showing that the O-methylation of the freshly cyclized tetraketide is the step that prevents symmetrization of the acetophenone.
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Affiliation(s)
- Gerhard Bringmann
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, D-97074 Würzburg, Germany.
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46
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Tietze LF, Gericke KM, Singidi RR, Schuberth I. Novel strategies for the synthesis of anthrapyran antibiotics: discovery of a new antitumor agent and total synthesis of (S)-espicufolin. Org Biomol Chem 2007; 5:1191-200. [PMID: 17406717 DOI: 10.1039/b700838d] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two high-yielding strategies for the synthesis of 4H-anthra[1,2-b]pyran antibiotics have been developed giving access to novel antitumor agent (ED(50) 1.5 microm) and to (S)-espicufolin (3). A key step for the assembly of the tetracyclic 4H-anthra[1,2-b]pyran-4,7,12-trione skeleton is the nucleophilic addition of an aryl lithium species onto an aldehyde which allows the introduction of either an ynone or 1,3-diketo side chain, serving as precursors for an acid-catalysed cyclisation.
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Affiliation(s)
- Lutz F Tietze
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität, Tammannstrasse 2, 37077, Göttingen, Germany.
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Alberico D, Scott ME, Lautens M. Aryl−Aryl Bond Formation by Transition-Metal-Catalyzed Direct Arylation. Chem Rev 2007; 107:174-238. [PMID: 17212475 DOI: 10.1021/cr0509760] [Citation(s) in RCA: 3171] [Impact Index Per Article: 186.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dino Alberico
- Davenport Laboratories, Chemistry Department, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
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Ndjakou Lenta B, Ngouela S, Fekam Boyom F, Tantangmo F, Feuya Tchouya GR, Tsamo E, Gut J, Rosenthal PJ, Donald Connolly J. Anti-plasmodial Activity of Some Constituents of the Root Bark of Harungana madagascariensis LAM. (Hypericaceae). Chem Pharm Bull (Tokyo) 2007; 55:464-7. [PMID: 17329893 DOI: 10.1248/cpb.55.464] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Bazouanthrone (1), a new anthrone derivative, has been isolated from the root bark of Harungana madagascariensis, together with known compounds, feruginin A (2), harunganin (3), harunganol A (4), harunganol B (5), friedelan-3-one (6) and betulinic acid (7). The structure of the compound (1) was assigned as 3,5,8,9-tetrahydroxy-2,4,4-tri-(3,3-dimethylallyl)-6-methyl-1-(4H)-anthracenone, by means of spectroscopic analysis. The anti-plasmodial activity of the isolated compounds was evaluated in culture against W2 strain of Plasmodium falciparum. All the compounds were found to be active against the Plasmodium parasites with bazouanthrone (1) showing particular potency (IC50=1.80 microM).
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Affiliation(s)
- Bruno Ndjakou Lenta
- Department of Chemistry, Higher Teachers' Training College, University of Yaoundé 1, Yaoundé, Cameroon
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Tietze LF, Singidi RR, Gericke KM. First Enantioselective Total Synthesis and Structure Determination of the Anthrapyran Metabolite γ-Indomycinone. Org Lett 2006; 8:5873-6. [PMID: 17134294 DOI: 10.1021/ol062492b] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The first total synthesis of (R)-gamma-indomycinone has been achieved which allowed the determination of the configuration of the stereogenic center of natural gamma-indomycinone as (S). The approach stands out for its generality and efficiency. [reaction: see text]
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Affiliation(s)
- Lutz F Tietze
- Institute of Organic and Biomolecular Chemistry, Georg-August-University, Tammannstrasse 2, D-37077 Göttingen, Germany
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Tietze LF, Gericke KM, Singidi RR. Enantioselektive Totalsynthese und Strukturaufklärung des antiherpetischen Anthrapyran-Antibiotikums AH-1763 IIa. Angew Chem Int Ed Engl 2006. [DOI: 10.1002/ange.200601992] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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