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Gilmartin PH, Kozlowski MC. Vanadium-Catalyzed Oxidative Intramolecular Coupling of Tethered Phenols: Formation of Phenol-Dienone Products. Org Lett 2020; 22:2914-2919. [PMID: 32227903 DOI: 10.1021/acs.orglett.0c00577] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A mild and efficient method for the vanadium-catalyzed intramolecular coupling of tethered free phenols is described. The corresponding phenol-dienone products are prepared directly in good yields with low catalyst loadings. Electronically diverse tethered phenol precursors are well tolerated, and the catalytic method was effectively applied as the key step in syntheses of three natural products and a synthetically useful morphinan alkaloid precursor.
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Affiliation(s)
- Philip H Gilmartin
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Marisa C Kozlowski
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
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2
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Dana S, Chowdhury D, Mandal A, Chipem FAS, Baidya M. Ruthenium(II) Catalysis/Noncovalent Interaction Synergy for Cross-Dehydrogenative Coupling of Arene Carboxylic Acids. ACS Catal 2018. [DOI: 10.1021/acscatal.8b03392] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Suman Dana
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Deepan Chowdhury
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Anup Mandal
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | | | - Mahiuddin Baidya
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
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3
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Rossington SB, Hadfield JA, Shnyder SD, Wallace TW, Williams KJ. Tubulin-binding dibenz[c,e]oxepines: Part 2. Structural variation and biological evaluation as tumour vasculature disrupting agents. Bioorg Med Chem 2017; 25:1630-1642. [PMID: 28143677 DOI: 10.1016/j.bmc.2017.01.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 01/11/2017] [Accepted: 01/17/2017] [Indexed: 02/07/2023]
Abstract
5,7-Dihydro-3,9,10,11-tetramethoxybenz[c,e]oxepin-4-ol 1, prepared from a dibenzyl ether precursor via Pd-catalysed intramolecular direct arylation, possesses broad-spectrum in vitro cytotoxicity towards various tumour cell lines, and induces vascular shutdown, necrosis and growth delay in tumour xenografts in mice at sub-toxic doses. The biological properties of 1 and related compounds can be attributed to their ability to inhibit microtubule assembly at the micromolar level, by binding reversibly to the same site of the tubulin αβ-heterodimer as colchicine 2 and the allocolchinol, N-acetylcolchinol 4.
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Affiliation(s)
- Steven B Rossington
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - John A Hadfield
- School of Environment and Life Sciences, University of Salford, Salford M5 4WT, UK
| | - Steven D Shnyder
- Institute of Cancer Therapeutics, University of Bradford, Richmond Road, Bradford BD7 1DP, UK
| | - Timothy W Wallace
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, UK.
| | - Kaye J Williams
- Manchester Pharmacy School, University of Manchester, Oxford Road, Manchester M13 9PT, UK
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4
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Bukhvalova SY, Ivanov MA, Malysheva YB, Fedorov AY. Synthesis of polymethoxy-substituted triazolobenzoxazepines. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2016. [DOI: 10.1134/s1070428016100183] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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5
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Not flavone-8-acetic acid (FAA) but its murine metabolite 6-OH-FAA exhibits remarkable antivascular activities in vitro. Anticancer Drugs 2016; 27:398-406. [PMID: 26901071 DOI: 10.1097/cad.0000000000000341] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Flavone-8-acetic acid (FAA) has been proved to be a potent vascular-disrupting agent in mice. Unfortunately, FAA did not produce any anticancer activity in clinical trials. Previously, we had reported that FAA is metabolized by mouse microsomes into six metabolites, whereas it was poorly metabolized by human microsomes, with fewer metabolites formed in lesser amounts. Especially, 6-OH-FAA was not formed by human microsomes. In this work, two major available metabolites, 4'-OH-FAA and 6-OH-FAA, were tested and compared with the parent compound FAA for their potential antivascular activities in vitro. The ability of the products to induce morphological changes, disrupt preformed capillaries of EA.hy926 endothelial cells and inhibit tubulin polymerization in vitro was assessed. The action mechanism was determined using the RhoA and Rac1 inhibitors. At 25 µg/ml, 6-OH-FAA induced morphological changes and membrane blebbing, whereas 300 µg/ml of FAA and 4'-OH-FAA slightly changed the morphology without inducing membrane blebbing. At 300 µg/ml, 6-OH-FAA produced morphological changes that were 2.1-6.9-fold greater than that produced by FAA and 4'-OH-FAA, an effect that was consistent with its much greater inhibitory effect on tubulin polymerization compared with FAA and 4'-OH-FAA. 6-OH-FAA significantly disrupted the EA.hy926 cell capillaries. 6-OH-FAA activities were prevented in EA.hy926 cells pretreated with RhoA, but not Rac1, inhibitor. In this short communication we report for the first time that, in vitro, 6-OH-FAA, a mouse-specific FAA metabolite, exhibits significantly stronger antivascular activities compared with FAA and 4'-OH-FAA, which are mediated through the RhoA kinase pathway.
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More AA, Ramana CV. Alkyne [2 + 2 + 2]-Cyclotrimerization Approach for Synthesis of 6,7-Cyclopropylallocolchicinoids. J Org Chem 2016; 81:3400-6. [DOI: 10.1021/acs.joc.6b00020] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Atul A. More
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, Maharashtra 411008, India
| | - Chepuri V. Ramana
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, Maharashtra 411008, India
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7
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Sun S, Yang J, Li F, Lv Z, Li W, Lou H, Liu L. Seven- and eight-membered heterocyclic biaryl synthesis through a metal-free oxidative coupling reaction. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.10.103] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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8
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Yang J, Sun S, Zeng Z, Zheng H, Li W, Lou H, Liu L. An economical and environmentally friendly oxidative biaryl coupling promoted by activated MnO2. Org Biomol Chem 2014; 12:7774-9. [DOI: 10.1039/c4ob01409j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Alcaide B, Almendros P, Quirós MT, López R, Menéndez MI, Sochacka-Ćwikła A. Unveiling the Reactivity of Propargylic Hydroperoxides under Gold Catalysis. J Am Chem Soc 2012; 135:898-905. [DOI: 10.1021/ja3108966] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Benito Alcaide
- Grupo de Lactamas y Heterociclos Bioactivos, Departamento de Química
Orgánica I, Unidad Asociada al CSIC, Facultad de Química, Universidad Complutense de Madrid, 28040-Madrid, Spain
| | - Pedro Almendros
- Instituto de Química Orgánica General, IQOG, CSIC, Juan de la Cierva
3, 28006-Madrid, Spain
| | - M. Teresa Quirós
- Grupo de Lactamas y Heterociclos Bioactivos, Departamento de Química
Orgánica I, Unidad Asociada al CSIC, Facultad de Química, Universidad Complutense de Madrid, 28040-Madrid, Spain
| | - Ramón López
- Departamento
de Química Física y Analítica, Universidad de Oviedo, Julián Clavería 8, 33006 Oviedo,
Asturias, Spain
| | - María I. Menéndez
- Departamento
de Química Física y Analítica, Universidad de Oviedo, Julián Clavería 8, 33006 Oviedo,
Asturias, Spain
| | - Aleksandra Sochacka-Ćwikła
- Grupo de Lactamas y Heterociclos Bioactivos, Departamento de Química
Orgánica I, Unidad Asociada al CSIC, Facultad de Química, Universidad Complutense de Madrid, 28040-Madrid, Spain
- Instituto de Química Orgánica General, IQOG, CSIC, Juan de la Cierva
3, 28006-Madrid, Spain
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Edwards DJ, Hadfield JA, Wallace TW, Ducki S. Tubulin-binding dibenz[c,e]oxepines as colchinol analogues for targeting tumour vasculature. Org Biomol Chem 2011; 9:219-31. [DOI: 10.1039/c0ob00500b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Colombel V, Joncour A, Thoret S, Dubois J, Bignon J, Wdzieczak-Bakala J, Baudoin O. Synthesis of antimicrotubule dibenzoxepines. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.04.039] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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12
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Boyer FD, Dubois J, Thoret S, Dau METH, Hanna I. Synthesis and tubulin-binding properties of new allocolchicinoids. Bioorg Chem 2010; 38:149-58. [PMID: 20359734 DOI: 10.1016/j.bioorg.2010.03.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2010] [Revised: 03/09/2010] [Accepted: 03/10/2010] [Indexed: 10/19/2022]
Abstract
Allocolchicinoids with B- and C-ring variations were synthesized using sequential enyne-metathesis/ Diels-Alder reactions (A-->AB-->ABC approach) and evaluated for their inhibitory effect on tubulin assembly in vitro. (-)-Allocolchicine 11 with methyl ester at C10 and (+/-)-cyclopropyl allocolchicinoid 32 exhibit similar activity than (-)-colchicine (1), probably derived from a similar flexibility in the biphenyl system. The presence of methyl ester at C10 led to a little loss in potency in comparison with the series with methyl ester at C9. A complete loss of activity was observed for allocolchicine 9 with methyl ester at C11.
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Affiliation(s)
- François-Didier Boyer
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, CNRS, 1 avenue de la Terrasse, F-91198 Gif-sur-Yvette Cedex, France.
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Colombel V, Baudoin O. Synthetic Approaches to Amino Analogues of N-Acetylcolchinol. J Org Chem 2009; 74:4329-35. [DOI: 10.1021/jo900632a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Virginie Colombel
- Université Lyon 1, CNRS UMR5246, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, 43 Boulevard du 11 Novembre 1918, 69622 Villeurbanne, France
| | - Olivier Baudoin
- Université Lyon 1, CNRS UMR5246, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, 43 Boulevard du 11 Novembre 1918, 69622 Villeurbanne, France
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Smith JA, Molesworth PP, Ryan JH. Chapter 7: Seven-Membered Rings. PROGRESS IN HETEROCYCLIC CHEMISTRY 2009. [DOI: 10.1016/s0959-6380(09)70044-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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