1
|
Kopp J, Brückner R. Stereoselective Total Synthesis of the Dimeric Naphthoquinonopyrano-γ-lactone (-)-Crisamicin A: Introducing the Dimerization Site by a Late-Stage Hartwig Borylation. Org Lett 2020; 22:3607-3612. [PMID: 32298125 DOI: 10.1021/acs.orglett.0c01078] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The first stereoselective total synthesis of the dimeric naphthoquinonopyrano-γ-lactone (-)-crisamicin A was realized (13 steps, 5% overall yield). 1,4,5-Trimethoxynaphthalene, reached in five known steps, was brominated at C-3 to install a but-3-enoic ester by an ensuing Heck coupling. An asymmetric Sharpless dihydroxylation followed and gave a β-hydroxy-γ-lactone with >99.9% ee. Its OH substituent and acetaldehyde established the dihydropyran ring in a completely diastereoselective oxa-Pictet-Spengler cyclization. The 2,3-fused anisole moiety allowed the C5-H bond under Hartwig's conditions to be borylated. This set the stage for engaging the resulting C5-B bond in an oxidative dimerization, which led to a binaphthohydroquinon-5-yl. The latter was advanced to synthetic crisamicin A by a double CAN oxidation (→ a binaphthoquinon-5-yl) and a double demethylation.
Collapse
Affiliation(s)
- Julia Kopp
- Institut für Organische Chemie, Albert-Ludwigs-Universität, Albertstr. 21, D-79104 Freiburg, Germany
| | - Reinhard Brückner
- Institut für Organische Chemie, Albert-Ludwigs-Universität, Albertstr. 21, D-79104 Freiburg, Germany
| |
Collapse
|
2
|
Navakouski M, Zhylitskaya H, Chmielewski PJ, Żyła-Karwowska M, Stępień M. Electrophilic Aromatic Coupling of Hexapyrrolylbenzenes. A Mechanistic Analysis. J Org Chem 2019; 85:187-194. [DOI: 10.1021/acs.joc.9b02556] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Maksim Navakouski
- Wydział Chemii, Uniwersytet Wrocławski, ul. F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - Halina Zhylitskaya
- Wydział Chemii, Uniwersytet Wrocławski, ul. F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - Piotr J. Chmielewski
- Wydział Chemii, Uniwersytet Wrocławski, ul. F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - Marika Żyła-Karwowska
- Wydział Chemii, Uniwersytet Wrocławski, ul. F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - Marcin Stępień
- Wydział Chemii, Uniwersytet Wrocławski, ul. F. Joliot-Curie 14, 50-383 Wrocław, Poland
| |
Collapse
|
3
|
Neumeyer M, Brückner R. Establishing Consensus Stereostructures for the Naphthoquinonopyrano-γ-lactone Natural Products (-)-Arizonin B1 and (-)-Arizonin C1 by Total Syntheses. Diastereocontrol of Oxa-Pictet-Spengler Cyclizations by Protective-Group Optimization. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Markus Neumeyer
- Institut für Organische Chemie; Albert-Ludwigs-Universität Freiburg; Albertstraße 21 79104 Freiburg Germany
| | - Reinhard Brückner
- Institut für Organische Chemie; Albert-Ludwigs-Universität Freiburg; Albertstraße 21 79104 Freiburg Germany
| |
Collapse
|
4
|
Fernandes RA, Patil PH, Chaudhari DA. Dimeric Pyranonaphthoquinones: Isolation, Bioactivity, and Synthetic Approaches. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600544] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Rodney A. Fernandes
- Department of Chemistry; Indian Institute of Technology Bombay; Powai 400076 Mumbai Maharashtra India
| | - Pradnya H. Patil
- Department of Chemistry; Indian Institute of Technology Bombay; Powai 400076 Mumbai Maharashtra India
| | - Dipali A. Chaudhari
- Department of Chemistry; Indian Institute of Technology Bombay; Powai 400076 Mumbai Maharashtra India
| |
Collapse
|
5
|
Neeve EC, Geier SJ, Mkhalid IAI, Westcott SA, Marder TB. Diboron(4) Compounds: From Structural Curiosity to Synthetic Workhorse. Chem Rev 2016; 116:9091-161. [PMID: 27434758 DOI: 10.1021/acs.chemrev.6b00193] [Citation(s) in RCA: 737] [Impact Index Per Article: 92.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Although known for over 90 years, only in the past two decades has the chemistry of diboron(4) compounds been extensively explored. Many interesting structural features and reaction patterns have emerged, and more importantly, these compounds now feature prominently in both metal-catalyzed and metal-free methodologies for the formation of B-C bonds and other processes.
Collapse
Affiliation(s)
- Emily C Neeve
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg , Würzburg 97074, Germany
| | - Stephen J Geier
- Mount Allison University , Department of Biochemistry and Chemistry, Sackville, New Brunswick E4L 1G8, Canada
| | | | - Stephen A Westcott
- Mount Allison University , Department of Biochemistry and Chemistry, Sackville, New Brunswick E4L 1G8, Canada
| | - Todd B Marder
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg , Würzburg 97074, Germany
| |
Collapse
|
6
|
Heapy AM, Patterson AV, Smaill JB, Jamieson SMF, Guise CP, Sperry J, Hume PA, Rathwell K, Brimble MA. Synthesis and cytotoxicity of pyranonaphthoquinone natural product analogues under bioreductive conditions. Bioorg Med Chem 2014; 21:7971-80. [PMID: 24436995 DOI: 10.1016/j.bmc.2013.09.052] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
UNLABELLED We have synthesised a focused library of derivatives of natural products containing the pyranonaphthoquinone moiety including the first report of such a scaffold with an appended tetrazole functionality. Examples include kalafungin derivatives as well as analogues of nanaomycin and eleutherin. These compounds were assessed for cytotoxic activation by breast cancer cell lines engineered to express the prototypic human one- and two-electron quinone bioreductive enzymes, NADPH: cytochrome P450 oxidoreductase (POR) and NAD(P)H quinoneoxidoreductase 1 (NQO1; DT-diaphorase), respectively. Several compounds were observed to be cytotoxic at sub-micromolar level and a pattern of increased aerobic potency was observed in cells over expressing POR. A subset of analogues was assessed under anoxic conditions, where cytotoxicity was reduced, implicating redox cycling as a major mechanism of toxicity. The substrate specificity for reductive enzymes is relevant to the future design of bioreductive prodrugs to treat cancer.
Collapse
|
7
|
Hume P, Furkert DP, Brimble MA. Regioselective iridium(I)-catalysed remote borylation of oxygenated naphthalenes. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.05.040] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
8
|
Design, synthesis and pharmacological evaluation of new series of naphthalenic analogues as melatoninergic (MT1/MT2) and serotoninergic 5-HT2C dual ligands (I). Eur J Med Chem 2012; 49:310-23. [DOI: 10.1016/j.ejmech.2012.01.027] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2011] [Revised: 01/10/2012] [Accepted: 01/12/2012] [Indexed: 12/17/2022]
|
9
|
Hajipour AR, Karami K, Tavakoli G. A comparative homocoupling reaction of aryl halides using monomeric orthopalladated complex of 4-methoxybenzoylmethylenetri- phenylphosphorane under conventional and microwave irradiation conditions. Appl Organomet Chem 2011. [DOI: 10.1002/aoc.1804] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
10
|
Huang K, Yu DG, Zheng SF, Wu ZH, Shi ZJ. Borylation of Aryl and Alkenyl Carbamates through Ni-Catalyzed CO Activation. Chemistry 2010; 17:786-91. [DOI: 10.1002/chem.201001943] [Citation(s) in RCA: 105] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2010] [Indexed: 11/12/2022]
|
11
|
Iimura S, Wu W. Palladium-catalyzed borylation of l-tyrosine triflate derivative with pinacolborane: practical route to 4-borono-l-phenylalanine (l-BPA) derivatives. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.01.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
12
|
Li Z, Gao Y, Tang Y, Dai M, Wang G, Wang Z, Yang Z. Total synthesis of crisamicin A. Org Lett 2008; 10:3017-20. [PMID: 18553973 DOI: 10.1021/ol800977n] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Stereoselective total synthesis of natural product crisamicin A (1) was accomplished for the first time via the Pd/TMTU-catalyzed alkoxycarbonylative annulation to generate a unique cis-pyran-fused lactone, an intermolecular Diels-Alder reaction to construct the pyranonaphthoquinone unit, and a novel Pd-thiourea pincer complex-catalyzed homocoupling of functionalized naphthoquinones.
Collapse
Affiliation(s)
- Zhengtao Li
- Laboratory of Chemical Genomics, Shenzhen Graduate School, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Beijing
| | | | | | | | | | | | | |
Collapse
|
13
|
Bachu P, Sperry J, Brimble MA. Synthesis of a C8 oxygenated pyranonaphthoquinone: a useful precursor to dimeric pyranonaphthoquinones. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.01.135] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
14
|
Andrey O, Sperry J, Larsen US, Brimble MA. An approach to an enantioselective synthesis of crisamicin A via a novel double Hauser–Kraus annulation strategy. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.02.065] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
15
|
Sperry J, Gibson JS, Sejberg JJP, Brimble MA. Enantioselective synthesis of the dimeric pyranonaphthoquinone core of the cardinalins using a late-stage homocoupling strategy. Org Biomol Chem 2008; 6:4261-70. [DOI: 10.1039/b813605j] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
16
|
Ilia G, Iliescu S, Macarie L, Popa A. Synthesis of tervalent phosphorus esters in biphasic system using potassium phosphate as unique solid base. HETEROATOM CHEMISTRY 2008. [DOI: 10.1002/hc.20438] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
17
|
|
18
|
Tam VK, Liu Q, Tor Y. Extended ethidium bromide analogue as a triple helix intercalator: synthesis, photophysical properties and nucleic acids binding. Chem Commun (Camb) 2006:2684-6. [PMID: 16786087 DOI: 10.1039/b604281c] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ethidium bromide has been extended by fusing an additional aromatic ring resulting in a larger intercalator with increased affinity for poly r(A) x r(U), poly d(A) x d(T) and triple helices when compared to the parent heterocycle.
Collapse
Affiliation(s)
- Victor K Tam
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, USA
| | | | | |
Collapse
|
19
|
Pd-catalyzed desulfonylative homocoupling of arenesulfonyl chlorides in the presence of hexamethyldisilane forming biaryls. Tetrahedron Lett 2005. [DOI: 10.1016/j.tetlet.2005.08.098] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|