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Airan Y, Prasad KR. Synthesis of the tetrahydropyran fragment of (+)-Ratjadone A. Tetrahedron 2021. [DOI: 10.1016/j.tet.2020.131824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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2
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Goswami D, Koli MR, Chatterjee S, Chattopadhyay S, Sharma A. syn-Selective crotylation of aldehydes using bismuth-crotyl bromide-(1-butyl-3-methylimidazolium bromide) combination: some synthetic applications. Org Biomol Chem 2017; 15:3756-3774. [PMID: 28406519 DOI: 10.1039/c7ob00626h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Bi-[bmim][Br] combination has been found to offer high syn-selectivity in the crotylation of aldehydes with crotyl bromide using practically stoichiometric amounts of the reagents. The room temperature ionic liquid (RTIL), [bmim][Br], activated Bi metal in the presence of oxygen to produce crotylbismuthdibromide, which reacted with the aldehydes at room temperature. The major anti-syn diastereomeric product obtained from the crotylation of (R)-cyclohexylideneglyceraldehyde was utilized for the synthesis of dictyostatin and cryptophycin segments, and (+)-cis-aerangis lactone, using standard synthetic protocols.
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Affiliation(s)
- Dibakar Goswami
- Bio-Organic Division, Bhabha Atomic Research Centre, Mumbai 400085, India.
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3
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Dias LC, Polo EC. Nhatrangin A: Total Syntheses of the Proposed Structure and Six of Its Diastereoisomers. J Org Chem 2017; 82:4072-4112. [DOI: 10.1021/acs.joc.6b03060] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Luiz C. Dias
- Institute of Chemistry, University of Campinas, 13083-970, C.P. 6154, Campinas, SP, Brazil
| | - Ellen C. Polo
- Institute of Chemistry, University of Campinas, 13083-970, C.P. 6154, Campinas, SP, Brazil
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Klich K, Pyta K, Kubicka MM, Ruszkowski P, Celewicz L, Gajecka M, Przybylski P. Synthesis, Antibacterial, and Anticancer Evaluation of Novel Spiramycin-Like Conjugates Containing C(5) Triazole Arm. J Med Chem 2016; 59:7963-73. [PMID: 27501415 DOI: 10.1021/acs.jmedchem.6b00764] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Huisgen cycloaddition allowed obtaining of novel triazole-bridged antibiotics (6-16) with the reconstructed C(5) arm of spiramycin. (1)H-(1)H NOESY couplings indicated the structure of novel derivatives in solution and demonstrated that the rebuilt C(5) arm is slightly differently oriented relative to the aglycone part if compared to that of spiramycin (1). Combined analysis of biological data together with experimentally determined lipophilicity (clogP) and solubility show the importance of the chemical nature of the newly introduced triazole C(5) arm in the presence of attractive antibacterial and anticancer potency. The most cytotoxic active triazole conjugates having a hydrophobic and bulky C(5) arm showed higher selectivity toward cancer cell lines (HeLa, KB, MCF-7, Hep-G2, and U87) relative to HDF normal cells than that of the parent spiramycin. Our studies have demonstrated that the aldehyde group is not crucial for the presence of interesting antibacterial [MIC(S. pneumoniae) ∼ 1.2 μM] and anticancer [IC50(HepG2) ∼ 6 μM] properties of 16-membered lactone macrolides based on spiramycin's aglycone.
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Affiliation(s)
- Katarzyna Klich
- Faculty of Chemistry, Adam Mickiewicz University , Umultowska 89b, 61-614 Poznan, Poland
| | - Krystian Pyta
- Faculty of Chemistry, Adam Mickiewicz University , Umultowska 89b, 61-614 Poznan, Poland
| | - Marcelina M Kubicka
- Department of Genetics and Pharmaceutical Microbiology, University of Medical Sciences , Swiecickiego 4, 60-781 Poznan, Poland
| | - Piotr Ruszkowski
- Department of Pharmacology, University of Medical Sciences , Rokietnicka 5a, 60-806 Poznan, Poland
| | - Lech Celewicz
- Faculty of Chemistry, Adam Mickiewicz University , Umultowska 89b, 61-614 Poznan, Poland
| | - Marzena Gajecka
- Department of Genetics and Pharmaceutical Microbiology, University of Medical Sciences , Swiecickiego 4, 60-781 Poznan, Poland.,Institute of Human Genetics, Polish Academy of Sciences , Strzeszynska 32, 60-479 Poznan, Poland
| | - Piotr Przybylski
- Faculty of Chemistry, Adam Mickiewicz University , Umultowska 89b, 61-614 Poznan, Poland
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Ganss S, Breit B. Enantioselective Rhodium-Catalyzed Atom-Economical Macrolactonization. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201604301] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Stephanie Ganss
- Institut für Organische Chemie; Albert-Ludwigs-Universität Freiburg; Albertstrasse 21 79104 Freiburg im Breisgau Germany
| | - Bernhard Breit
- Institut für Organische Chemie; Albert-Ludwigs-Universität Freiburg; Albertstrasse 21 79104 Freiburg im Breisgau Germany
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Ganss S, Breit B. Enantioselective Rhodium-Catalyzed Atom-Economical Macrolactonization. Angew Chem Int Ed Engl 2016; 55:9738-42. [DOI: 10.1002/anie.201604301] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Stephanie Ganss
- Institut für Organische Chemie; Albert-Ludwigs-Universität Freiburg; Albertstrasse 21 79104 Freiburg im Breisgau Germany
| | - Bernhard Breit
- Institut für Organische Chemie; Albert-Ludwigs-Universität Freiburg; Albertstrasse 21 79104 Freiburg im Breisgau Germany
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7
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Dictyoceratidan poisons: Defined mark on microtubule-tubulin dynamics. Life Sci 2016; 148:229-40. [PMID: 26874035 DOI: 10.1016/j.lfs.2016.02.034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Revised: 02/08/2016] [Accepted: 02/09/2016] [Indexed: 10/22/2022]
Abstract
Tubulin/microtubule assembly and disassembly is characterized as one of the chief processes during cell growth and division. Hence drugs those perturb these process are considered to be effective in killing fast multiplying cancer cells. There is a collection of natural compounds which disturb microtubule/tubulin dis/assemblage and there have been a lot of efforts concerted in the marine realm too, to surveying such killer molecules. Close to half the natural compounds shooting out from marine invertebrates are generally with no traceable definite mechanisms of action though may be tough anti-cancerous hits at nanogram levels, hence fatefully those discoveries conclude therein without a capacity of translation from laboratory to pharmacy. Astoundingly at least 50% of natural compounds which have definite mechanisms of action causing disorders in tubulin/microtubule kinetics have an isolation history from sponges belonging to the Phylum: Porifera. Poriferans have always been a wonder worker to treat cancers with a choice of, yet precise targets on cancerous tissues. There is a specific order: Dictyoceratida within this Phylum which has contributed to yielding at least 50% of effective compounds possessing this unique mechanism of action mentioned above. However, not much notice is driven to Dictyoceratidans alongside the order: Demospongiae thus dictating the need to know its select microtubule/tubulin irritants since the unearthing of avarol in the year 1974 till date. Hence this review selectively pinpoints all the compounds, noteworthy derivatives and analogs stemming from order: Dictyoceratida focusing on the past, present and future.
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Kim HS, Woo TG, Lee HW. Synthesis of C5-C15 Subunit of Dictyostatin Using the Ring-Closing Metathesis Reaction of Silicon-tethered Intermediates. B KOREAN CHEM SOC 2015. [DOI: 10.1002/bkcs.10611] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Hyoung-Sang Kim
- Department of Chemistry; Chungbuk National University; Cheongju 362-763 Korea
| | - Tae-Gu Woo
- Department of Chemistry; Chungbuk National University; Cheongju 362-763 Korea
| | - Hyo Won Lee
- Department of Chemistry; Chungbuk National University; Cheongju 362-763 Korea
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Ho S, Sackett DL, Leighton JL. A "methyl extension" strategy for polyketide natural product linker site validation and its application to dictyostatin. J Am Chem Soc 2015; 137:14047-50. [PMID: 26522184 DOI: 10.1021/jacs.5b09869] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An approach to the validation of linker strategies for polyketide natural products with few or no obvious handles for linker attachment, and its application to dictyostatin, are described. Analogues in which the C(6)- and C(12)-methyl groups were replaced by 4-azidobutyl groups were prepared and shown to retain the low nanomolar potency of dictyostatin. Further, conjugation of the C(6) analogue with a cyclooctyne resulted in only minor attenuations in potency. Together, these results shed light on the binding of dictyostatin to β-tubulin, establish a validated linker strategy for dictyostatin, and set the stage for the synthesis and study of dictyostatin conjugates.
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Affiliation(s)
- Stephen Ho
- Department of Chemistry, Columbia University , New York, New York 10027, United States
| | - Dan L Sackett
- Program in Physical Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health , Bethesda, Maryland 20892, United States
| | - James L Leighton
- Department of Chemistry, Columbia University , New York, New York 10027, United States
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Nakano H, Sugawara A, Hirose T, Gouda H, Hirono S, Ōmura S, Sunazuka T. An architectonic macrolide library based on a C2-symmetric macrodiolide toward pharmaceutical compositions. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.01.030] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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11
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Larsen EM, Wilson MR, Taylor RE. Conformation-activity relationships of polyketide natural products. Nat Prod Rep 2015; 32:1183-206. [PMID: 25974024 PMCID: PMC4443481 DOI: 10.1039/c5np00014a] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Polyketides represent an important class of secondary metabolites that interact with biological targets connected to a variety of disease-associated pathways. Remarkably, nature's assembly lines, polyketide synthases, manufacture these privileged structures through a combinatorial mixture of just a few structural units. This review highlights the role of these structural elements in shaping a polyketide's conformational preferences, the use of computer-based molecular modeling and solution NMR studies in the identification of low-energy conformers, and the importance of conformational analogues in probing the bound conformation. In particular, this review covers several examples wherein conformational analysis complements classic structure-activity relationships in the design of biologically active natural product analogues.
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Affiliation(s)
- Erik M Larsen
- University of Notre Dame, Department of Chemistry & Biochemistry, 250 Nieuwland Science Hall, Notre Dame, Indiana, USA.
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12
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Wünsch S, Breit B. Probingo-Diphenylphosphanyl Benzoate (o-DPPB)-Directed CC Bond Formation: Total Synthesis of Dictyostatin. Chemistry 2014; 21:2358-63. [DOI: 10.1002/chem.201406252] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Indexed: 11/09/2022]
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13
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Kumar JN, Reddy PR, Das B, Kumar CG, Sujitha P. A new strategy for the synthesis of crucigasterin A, and cytotoxic activity of this compound and its related analogues. Bioorg Med Chem Lett 2013; 23:5192-4. [DOI: 10.1016/j.bmcl.2013.07.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2013] [Revised: 07/01/2013] [Accepted: 07/03/2013] [Indexed: 11/27/2022]
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14
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Ho S, Bucher C, Leighton JL. A highly step-economical synthesis of dictyostatin. Angew Chem Int Ed Engl 2013; 52:6757-61. [PMID: 23666786 PMCID: PMC3812691 DOI: 10.1002/anie.201302565] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Indexed: 11/10/2022]
Affiliation(s)
- Stephen Ho
- Department of Chemistry, Columbia University, 3000 Broadway, New York, NY 10027, USA
| | - Cyril Bucher
- Department of Chemistry, Columbia University, 3000 Broadway, New York, NY 10027, USA
| | - James L. Leighton
- Department of Chemistry, Columbia University, 3000 Broadway, New York, NY 10027, USA
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15
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Hao BY, Liu JQ, Zhang WH, Chen XZ. Chiral Pool Synthesis of N-Cbz-cis-(3R,4R)-3-methylamino-4-methylpiperidine from L-Malic acid. B KOREAN CHEM SOC 2013. [DOI: 10.5012/bkcs.2013.34.5.1371] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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16
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Ho S, Bucher C, Leighton JL. A Highly Step-Economical Synthesis of Dictyostatin. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201302565] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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17
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Abstract
This article provides an overview on the chemistry and structure-activity relationships of macrolide-based microtubule-stabilizing agents. The primary focus will be on the total synthesis or examples thereof, but a brief summary of the current state of knowledge on the structure-activity relationships of epothilones, laulimalide, dictyostatin, and peloruside A will also be given. This macrolide class of compounds, over the last decade, has become the subject of growing interest due to their ability to inhibit human cancer cell proliferation through a taxol-like mechanism of action.
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Fuwa H, Kawakami M, Noto K, Muto T, Suga Y, Konoki K, Yotsu-Yamashita M, Sasaki M. Concise synthesis and biological assessment of (+)-neopeltolide and a 16-member stereoisomer library of 8,9-dehydroneopeltolide: identification of pharmacophoric elements. Chemistry 2013; 19:8100-10. [PMID: 23606326 DOI: 10.1002/chem.201300664] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2013] [Indexed: 02/01/2023]
Abstract
We describe herein a concise synthesis of (+)-neopeltolide, a marine macrolide natural product that elicits a highly potent antiproliferative activity against several human cancer cell lines. Our synthesis exploited the powerful bond-forming ability and high functional group compatibility of olefin metathesis and esterification reactions to minimize manipulations of oxygen functionalities and to maximize synthetic convergency. Our findings include a chemoselective olefin cross-metathesis reaction directed by H-bonding, and a ring-closing metathesis conducted under non-high dilution conditions. Moreover, we developed a 16-member stereoisomer library of 8,9-dehydroneopeltolide to systematically explore the stereostructure-activity relationships. Assessment of the antiproliferative activity of the stereoisomers against A549 human lung adenocarcinoma, MCF-7 human breast adenocarcinoma, HT-1080 human fibrosarcoma, and P388 murine leukemia cell lines has revealed marked differences in potency between the stereoisomers. This study provides comprehensive insights into the structure-activity relationship of this important antiproliferative agent, leading to the identification of the pharmacophoric structural elements and the development of truncated analogues with nanomolar potency.
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Affiliation(s)
- Haruhiko Fuwa
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan.
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21
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Parenty A, Moreau X, Niel G, Campagne JM. Update 1 of: Macrolactonizations in the Total Synthesis of Natural Products. Chem Rev 2013; 113:PR1-40. [DOI: 10.1021/cr300129n] [Citation(s) in RCA: 148] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- A. Parenty
- Institut de Chimie des Substances
Naturelles, Avenue de la Terrasse, F-91198 Gif sur Yvette, France
| | - X. Moreau
- Institut de Chimie des Substances
Naturelles, Avenue de la Terrasse, F-91198 Gif sur Yvette, France
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles-Saint-Quentin-en-Yvelines, 45 Avenue des Etats-Unis, 78035 Versailles Cedex, France
| | - Gilles Niel
- Institut Charles Gerhardt, UMR5253, Ecole Nationale Supérieure de Chimie, 8 rue de l’Ecole Normale, F-34296 Montpellier, France
| | - J.-M. Campagne
- Institut de Chimie des Substances
Naturelles, Avenue de la Terrasse, F-91198 Gif sur Yvette, France
- Institut Charles Gerhardt, UMR5253, Ecole Nationale Supérieure de Chimie, 8 rue de l’Ecole Normale, F-34296 Montpellier, France
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Gallon J, Esteban J, Bouzbouz S, Campbell M, Reymond S, Cossy J. Formal Synthesis of Dictyostatin and Synthesis of Two Dictyostatin Analogues. Chemistry 2012; 18:11788-97. [DOI: 10.1002/chem.201201001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2012] [Revised: 06/05/2012] [Indexed: 02/06/2023]
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Lumbroso A, Abermil N, Breit B. Atom economic macrolactonization and lactonization viaredox-neutral rhodium-catalyzed coupling of terminal alkynes with carboxylic acids. Chem Sci 2012. [DOI: 10.1039/c2sc00812b] [Citation(s) in RCA: 113] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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Haleema S, Sasi PV, Ibnusaud I, Polavarapu PL, Kagan HB. Enantiomerically pure compounds related to chiral hydroxy acids derived from renewable resources. RSC Adv 2012. [DOI: 10.1039/c2ra21205f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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Smith AB, Dong S, Fox RJ, Brenneman JB, Vanecko JA, Maegawa T. (+)-Sorangicin A: evolution of a viable synthetic strategy. Tetrahedron 2011; 67:9809-9828. [PMID: 22247573 PMCID: PMC3254116 DOI: 10.1016/j.tet.2011.09.035] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
An effective, asymmetric total synthesis of the antibiotic (+)-sorangicin A (1) has been achieved. Central to this venture was the development of first and second generation syntheses of the signature dioxabicyclo[3.2.1]octane core, the first featuring chemo- and stereoselective epoxide ring openings facilitated by a Co(2)(CO)(6)-alkyne complex, the second involving a KHMDS-promoted epoxide ring formation/opening cascade. Additional highlights include effective construction of the dihydro- and tetrahydropyran ring systems, respectively via a stereoselective conjugate addition/α-oxygenation protocol and a thioketalization/hydrostannane reduction sequence. Late-stage achievements entailed two Julia-Kociénski olefinations to unite three advanced fragments with high E-stereoselectivity, followed by a modified Stille protocol to introduce the Z,Z,E trienoate moiety, thereby completing the carbon skeleton. Mukaiyama macrolactonization, followed by carefully orchestrated Lewis and protic acid-promoted deprotections that suppressed isomerization and/or destruction of the sensitive (Z,Z,E)-trienoate linkage completed the first, and to date only, total synthesis of (+)-sorangicin A (1).
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Affiliation(s)
- Amos B. Smith
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, PA 19104, United States
| | - Shuzhi Dong
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, PA 19104, United States
| | - Richard J Fox
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, PA 19104, United States
| | - Jehrod B. Brenneman
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, PA 19104, United States
| | - John A. Vanecko
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, PA 19104, United States
| | - Tomohiro Maegawa
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, PA 19104, United States
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Winder PL, Pomponi SA, Wright AE. Natural products from the Lithistida: a review of the literature since 2000. Mar Drugs 2011; 9:2643-2682. [PMID: 22363244 PMCID: PMC3280575 DOI: 10.3390/md9122643] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2011] [Revised: 11/09/2011] [Accepted: 12/06/2011] [Indexed: 12/20/2022] Open
Abstract
Lithistid sponges are known to produce a diverse array of compounds ranging from polyketides, cyclic and linear peptides, alkaloids, pigments, lipids, and sterols. A majority of these structurally complex compounds have very potent and interesting biological activities. It has been a decade since a thorough review has been published that summarizes the literature on the natural products reported from this amazing sponge order. This review provides an update on the current taxonomic classification of the Lithistida, describes structures and biological activities of 131 new natural products, and discusses highlights from the total syntheses of 16 compounds from marine sponges of the Order Lithistida providing a compilation of the literature since the last review published in 2002.
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Affiliation(s)
- Priscilla L Winder
- Harbor Branch Oceanographic Institution at Florida Atlantic University, Center for Marine Biomedical and Biotechnology Research, 5600 US 1 North, Fort Pierce, FL 34946, USA
| | - Shirley A Pomponi
- Harbor Branch Oceanographic Institution at Florida Atlantic University, Center for Marine Biomedical and Biotechnology Research, 5600 US 1 North, Fort Pierce, FL 34946, USA
| | - Amy E Wright
- Harbor Branch Oceanographic Institution at Florida Atlantic University, Center for Marine Biomedical and Biotechnology Research, 5600 US 1 North, Fort Pierce, FL 34946, USA
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Jiménez M, Zhu W, Vogt A, Day BW, Curran DP. Efficient syntheses of 25,26-dihydrodictyostatin and 25,26-dihydro-6-epi-dictyostatin, two potent new microtubule-stabilizing agents. Beilstein J Org Chem 2011; 7:1372-8. [PMID: 22043248 PMCID: PMC3201051 DOI: 10.3762/bjoc.7.161] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2011] [Accepted: 09/12/2011] [Indexed: 11/29/2022] Open
Abstract
The dictyostatins are powerful microtubule-stabilizing agents that have shown antiproliferative activity against a variety of human cancer cell lines. Two highly active analogs of dictyostatin, 25,26-dihydrodictyostatin and 25,26-dihydro-6-epi-dictyostatin, were prepared by a new streamlined total synthesis route. Three complete carbon fragments were prepared to achieve maximum convergency. These were coupled by a Horner–Wadsworth–Emmons reaction sequence and an esterification. A late stage Nozaki–Hiyama–Kishi reaction was then used to form the 22-membered macrolide. The stereoselectivity of this reaction depended on the configurations of the nearby stereocenter at C6.
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Affiliation(s)
- María Jiménez
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, PA 15260 USA
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28
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Ramírez-Fernández J, Botubol JM, Bustillo AJ, Aleu J, Collado IG, Hernández-Galán R. Botcinolide/Botcinin: Asymmetric Synthesis of the Key Fragments. Nat Prod Commun 2011. [DOI: 10.1177/1934578x1100600404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The asymmetric synthesis of key fragments of the phytotoxic toxins botcinolide/botcinin is reported. The synthesis of 1 and 1a are based on a convergent route via esterification and alkene metathesis of fragments A, B or C, B, which were obtained by Evans aldol condensation and stereoselective crotylation, respectively.
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Affiliation(s)
- Jacinto Ramírez-Fernández
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Cádiz, Poligono Rio San Pedro s/n, 11510 Puerto Real, Cádiz, Spain
| | - José Manuel Botubol
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Cádiz, Poligono Rio San Pedro s/n, 11510 Puerto Real, Cádiz, Spain
| | - Antonio J. Bustillo
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Cádiz, Poligono Rio San Pedro s/n, 11510 Puerto Real, Cádiz, Spain
| | - Josefina Aleu
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Cádiz, Poligono Rio San Pedro s/n, 11510 Puerto Real, Cádiz, Spain
| | - Isidro G. Collado
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Cádiz, Poligono Rio San Pedro s/n, 11510 Puerto Real, Cádiz, Spain
| | - Rosario Hernández-Galán
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Cádiz, Poligono Rio San Pedro s/n, 11510 Puerto Real, Cádiz, Spain
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29
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Zanato C, Pignataro L, Ambrosi A, Hao Z, Trigili C, Díaz JF, Barasoain I, Gennari C. Highly Stereoselective Total Synthesis of (+)-9-epi-Dictyostatin and (-)-12,13-Bis-epi-dictyostatin. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100244] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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30
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Ferreiro-Mederos L, Vila-Gisbert S, Urbano A, Carreño MC, Colobert F. Stereoselective synthesis of the C15-C26 fragment of the antitumor agent (-)-dictyostatin. Org Biomol Chem 2010; 9:758-64. [PMID: 21082125 DOI: 10.1039/c0ob00491j] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of the C15-C26 fragment of (-)-dictyostatin is reported in 10 steps and 28% overall yield. The key steps are the two stereoselective sulfoxide-directed processes: a Reformatsky-type reaction and a β-keto sulfoxide reduction.
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Affiliation(s)
- Leticia Ferreiro-Mederos
- Departamento de Química Orgánica (Módulo 01), Universidad Autónoma de Madrid, 28049, Madrid, Spain
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31
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Zhu W, Jiménez M, Jung WH, Camarco DP, Balachandran R, Vogt A, Day BW, Curran DP. Streamlined syntheses of (-)-dictyostatin, 16-desmethyl-25,26-dihydrodictyostatin, and 6-epi-16-desmethyl-25,26-dihydrodictyostatin. J Am Chem Soc 2010; 132:9175-87. [PMID: 20545347 DOI: 10.1021/ja103537u] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The dictyostatins are a promising class of potential anti-cancer drugs because they are powerful microtubule-stabilizing agents, but the complexity of their chemical structures is a severe impediment to their further development. On the basis of both synthetic and medicinal chemistry analyses, 16-desmethyl-25,26-dihydrodictyostatin and its C6 epimer were chosen as potentially potent yet accessible dictyostatin analogues, and three new syntheses were developed. A relatively classical synthesis involving vinyllithium addition and macrocyclization gave way to a newer and more practical approach based on esterification and ring-closing metathesis reaction. Finally, aspects of these two approaches were combined to provide a third new synthesis based on esterification and Nozaki-Hiyama-Kishi reaction. This was used to prepare the target dihydro analogues and the natural product. All of the syntheses are streamlined because of their high convergency. The work provided several new analogues of dictyostatin, including a truncated macrolactone and a C10 E-alkene, which were 400- and 50-fold less active than (-)-dictyostatin, respectively. In contrast, the targeted 16-desmethyl-25,26-dihydrodictyostatin analogues retained almost complete activity in preliminary biological assays.
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Affiliation(s)
- Wei Zhu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, USA
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32
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Zanato C, Pignataro L, Ambrosi A, Hao Z, Gennari C. A Highly Stereoselective Total Synthesis of (+)-9-epi-Dictyostatin. European J Org Chem 2010. [DOI: 10.1002/ejoc.201001018] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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33
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Paterson I, Britton R, Delgado O, Gardner NM, Meyer A, Naylor GJ, Poullennec KG. Total synthesis of (−)-dictyostatin, a microtubule-stabilising anticancer macrolide of marine sponge origin. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.01.083] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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34
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Yadav JS, Rajender V. Studies Directed Towards the Total Synthesis of (-)-Dictyostatin. European J Org Chem 2010. [DOI: 10.1002/ejoc.200901448] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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35
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Pereira CL, Chen YH, McDonald FE. Total Synthesis of the Sphingolipid Biosynthesis Inhibitor Fumonisin B1. J Am Chem Soc 2009; 131:6066-7. [DOI: 10.1021/ja9009265] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Yi-Hung Chen
- Department of Chemistry, Emory University, Atlanta, Georgia 30322
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36
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Dias LC, Lima DJP, Gonçalves CCS, Andricopulo AD. Synthesis of the C11-C23 Fragment of the Potent Antitumor Agent Dictyostatin. European J Org Chem 2009. [DOI: 10.1002/ejoc.200801234] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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37
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Total synthesis of novel dictyostatin analogs and hybrids as microtubule-stabilizing anticancer agents. PURE APPL CHEM 2009. [DOI: 10.1351/pac-con-08-09-17] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Structural modification of the dictyostatin macrolide template through adaptation of our total synthesis has led to the identification of a number of potent analogs of this novel microtubule-stabilizing agent. A common synthetic strategy was exploited, employing a (Z)-selective Still-Gennari olefination between various advanced C11-C26 aldehyde and C4-C10 (or C1-C10) β-ketophosphonate intermediates. In vitro evaluation of the growth inhibitory activity of these analogs against both Taxol-sensitive and -resistant human cancer cell lines has provided a foundation for structure-activity relationship (SAR) studies to help define the pharmacophore region.
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38
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Paterson I, Gardner NM, Guzmán E, Wright AE. Total synthesis and biological evaluation of novel C2-C6 region analogues of dictyostatin. Bioorg Med Chem 2008; 17:2282-9. [PMID: 19022679 DOI: 10.1016/j.bmc.2008.10.084] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2008] [Revised: 06/12/2008] [Accepted: 10/31/2008] [Indexed: 11/26/2022]
Abstract
By exploiting a Still-Gennari HWE coupling with a common C11-C26 aldehyde, a series of C2-C6 modified analogues of the microtubule-stabilising marine natural product dictyostatin were synthesised and evaluated in vitro for growth inhibition against a range of human cancer cell lines, including the (P-glycoprotein efflux-mediated) Taxol-resistant NCI/ADR cell line. Removal of the C6 methyl substituent in dictyostatin was found to be well tolerated and led to the retention of antiproliferative activity in the low nanomolar range (IC(50)=43 nM in the NCI/ADR cell line), while partial and full saturation of the (2Z,4E)-dienoate region led to a progressive reduction in biological potency. The lactone ring size was found to be critical, as C21 to C19 translactonisation to afford 20-membered isodictyostatin analogues led to a significant loss of cytotoxicity. In a series of incubatory experiments performed on the PANC-1 cell line, all three of the 22-membered macrolide analogues acted in an analogous fashion to dictyostatin, through a mechanism of microtubule stabilization, causing both an accumulation of cells at the G2/M phase and formation of characteristic dense intracellular microtubule bundles.
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Affiliation(s)
- Ian Paterson
- University Chemical Laboratory, Lensfield Road, Cambridge CB2 1EW, UK.
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39
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Paterson I, Gardner NM, Guzmán E, Wright AE. Total synthesis and biological evaluation of potent analogues of dictyostatin: modification of the C2-C6 dienoate region. Bioorg Med Chem Lett 2008; 18:6268-72. [PMID: 18951787 DOI: 10.1016/j.bmcl.2008.09.109] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2008] [Accepted: 09/22/2008] [Indexed: 11/30/2022]
Abstract
By exploiting a Still-Gennari olefination of a common C11-C26 aldehyde with a C4-C10 or C1-C10 beta-ketophosphonate, three modified C2-C6 region analogues of the 22-membered macrolide dictyostatin were synthesised and evaluated in vitro for growth inhibition against a range of human cancer cell lines, including the Taxol-resistant NCI/ADR-Res cell line. 6-Desmethyldictyostatin and 2,3-dihydrodictyostatin displayed potent (low nanomolar) antiproliferative activity, intermediate between dictyostatin and discodermolide, while 2,3,4,5-tetrahydrodictyostatin showed activity comparable to discodermolide. As with dictyostatin, these simplified analogues act through a mechanism of microtubule stabilisation, G2/M arrest and apoptosis.
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Affiliation(s)
- Ian Paterson
- University Chemical Laboratory, Lensfield Road, Cambridge CB2 1EW, UK.
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40
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Eiseman JL, Bai L, Jung WH, Moura-Letts G, Day BW, Curran DP. Improved synthesis of 6-epi-dictyostatin and antitumor efficacy in mice bearing MDA-MB231 human breast cancer xenografts. J Med Chem 2008; 51:6650-3. [PMID: 18839939 DOI: 10.1021/jm800979v] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Structure-activity studies centered on the naturally occurring antitumor agent dictyostatin have recently identified several highly active epimers and analogues. From these compounds, 6- epi-dictyostatin was selected for scaleup preparation and evaluation in animals. Here we describe a new total synthesis that produced more than 30 mg of 6- epi-dictyostatin. The compound was found to have potent antitumor activity in SCID mice bearing MDA-MB231 human breast cancer xenografts.
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Affiliation(s)
- Julie L Eiseman
- Department of Pharmacology & Chemical Biology and University of Pittsburgh Cancer Institute, G.27.b Research Pavilion, Hillman Cancer Center, 5117 Centre Avenue, Pittsburgh, Pennsylvania 15213-1862, USA.
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41
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Paterson I, Gardner NM, Poullennec KG, Wright AE. Synthesis and biological evaluation of 10,11-dihydrodictyostatin, a potent analogue of the marine anticancer agent dictyostatin. JOURNAL OF NATURAL PRODUCTS 2008; 71:364-369. [PMID: 18081257 DOI: 10.1021/np070547s] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
By employing a diverted total synthesis strategy with late-stage intermediates, 10,11-dihydrodictyostatin ( 5) was prepared and evaluated in vitro for growth inhibition against a range of human cancer cell lines, including the NCI/ADR Taxol-resistant cell line. This novel dictyostatin analogue was found to retain potent antimitotic activity, with a comparable profile to discodermolide and Taxol, functioning by microtubule stabilization and G2/M arrest. These SAR studies provide further insight into the interaction between dictyostatin ( 1) and its tubulin target.
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42
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Florence GJ, Gardner NM, Paterson I. Development of practical syntheses of the marine anticancer agents discodermolide and dictyostatin. Nat Prod Rep 2008; 25:342-75. [PMID: 18389141 DOI: 10.1039/b705661n] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Initially isolated in trace quantities from deep-sea sponges, the structurally related polyketides discodermolide and dictyostatin share the same microtubule-stabilizing antimitotic mechanism as Taxol. Discodermolide has been the focus of intense research activity in order to develop a practical supply route, and these efforts ultimately allowed its large-scale synthesis and the initiation of clinical trials as a novel anticancer drug. Similarly, the re-isolation and synthesis of dictyostatin continues to stimulate the biological and chemical communities in their quest for the development of new chemotherapeutic agents. This comprehensive review chronicles the synthetic endeavours undertaken over the last 15 years towards the development and realization of practical chemical syntheses of discodermolide and, more recently, dictyostatin, focusing on the methods and strategies employed for achieving overall stereocontrol and key fragment unions, as well as the design and synthesis of novel hybrid structures.
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Affiliation(s)
- Gordon J Florence
- School of Chemistry and Centre for Biomolecular Sciences, University of St Andrews, North Haugh, St Andrews KY16 9 ST, United Kingdom.
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43
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Raccor BS, Vogt A, Sikorski RP, Madiraju C, Balachandran R, Montgomery K, Shin Y, Fukui Y, Jung WH, Curran DP, Day BW. Cell-Based and Biochemical Structure-Activity Analyses of Analogs of the Microtubule Stabilizer Dictyostatin. Mol Pharmacol 2007; 73:718-26. [DOI: 10.1124/mol.107.042598] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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