201
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Nathwani SM, Hughes L, Greene LM, Carr M, O'Boyle NM, McDonnell S, Meegan MJ, Zisterer DM. Novel cis-restricted β-lactam combretastatin A-4 analogues display anti-vascular and anti-metastatic properties in vitro. Oncol Rep 2012; 29:585-94. [PMID: 23232969 DOI: 10.3892/or.2012.2181] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2012] [Accepted: 10/24/2012] [Indexed: 11/05/2022] Open
Abstract
Combretastatin A-4 (CA-4) is a naturally occurring microtubular-destabilising agent that possesses potent anti-tumour and anti-vascular properties both in vitro and in vivo. Clinical trials to date indicate that its water-soluble prodrug, combretastatin A-4 phosphate (CA-4P), is well tolerated at therapeutically useful doses. However, the stilbenoid structure of CA-4, consisting of two phenyl rings linked by an ethylene bridge, renders the compound readily susceptible to isomerisation from its biologically active cis-conformation to its more thermodynamically stable but inactive trans-isomer. To circumvent this problem, we synthesised a series of cis-restricted CA-4 analogues. Replacement of the ethylene bridge with a 1,4-diaryl-2-azetidinone (β-lactam) ring provided a rigid scaffold thus preventing cis-trans isomerisation. We previously documented that these tubulin-depolymerising β-lactam compounds potently induced cell cycle arrest and apoptosis in a variety of cancerous cell lines (including those displaying multidrug resistance) and ex vivo patient samples, whilst exerting only minimal toxicity to normal cells. The purpose of this study was to elucidate the effect of the β-lactam compounds on both tumour vascularisation and tumour cell migration, two critical elements that occur during the growth and metastatic progression of tumours. We established that two representative β-lactam compounds, CA-104 and CA-432, exerted both anti-endothelial effects [G2/M arrest and apoptosis of primary human umbilical vein endothelial cells (HUVECs)] and anti-angiogenic effects [inhibition of HUVEC migration and differentiation and reduced vascular endothelial growth factor (VEGF) release from MDA-MB-231 breast adenocarcinoma cells]. In addition, we established that lead analogue, CA-432, abrogated the migration of MDA-MB-231 cells indicating an anti-metastatic function for these compounds. In summary, our results to date collectively indicate that these cis-restricted β-lactam CA-4 analogues may prove to be useful alternatives to CA-4 in the treatment of cancer but with the added advantage of improved stability of the cis-isomer.
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Affiliation(s)
- Seema-Maria Nathwani
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland.
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202
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Simpson J, Mohamed SK, Marzouk AA, Talybov AH, Abdelhamid AA. 2-(4-Meth-oxy-phen-yl)-1-pentyl-4,5-di-phenyl-1H-imidazole. Acta Crystallogr Sect E Struct Rep Online 2012; 69:o5-6. [PMID: 23476433 PMCID: PMC3588259 DOI: 10.1107/s1600536812049100] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Accepted: 11/29/2012] [Indexed: 11/10/2022]
Abstract
The title compound, C27H28N2O, is a lophine (2,4,5-triphenyl-1H-imidazole) derivative with an n-pentyl chain on the amine N atom and a 4-meth-oxy substituent on the benzene ring. The two phenyl and meth-oxy-benzene rings are inclined to the imidazole ring at angles of 25.32 (7), 76.79 (5) and 35.42 (7)°, respectively, while the meth-oxy substituent lies close to the plane of its benzene ring, with a maximum deviation of 0.126 (3) Å for the meth-oxy C atom. In the crystal, inversion dimers linked by pairs of C-H⋯O hydrogen bonds generate R2(2)(22) loops. These dimers are stacked along the a-axis direction.
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Affiliation(s)
- Jim Simpson
- Department of Chemistry, University of Otago, PO Box 56, Dunedin, New Zealand
| | - Shaaban K. Mohamed
- Chemistry Department, Faculty of Science, Minia University, El-Minia, Egypt,Chemistry and Environmental Division, Manchester Metropolitan University, Manchester M1 5GD, England,Correspondence e-mail:
| | - Adel A. Marzouk
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Al Azhar University, Egypt
| | - Avtandil H. Talybov
- Manedaliev Institute of Petrochemical Processes, National Academy of Sciences of Azerbaijan, Baku, Azerbaijan
| | - Antar A. Abdelhamid
- Chemistry Department, Faculty of Science, Sohag University, Sohag 82524, Egypt
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203
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Nguyen TTB, Lomberget T, Tran NC, Colomb E, Nachtergaele L, Thoret S, Dubois J, Guillaume J, Abdayem R, Haftek M, Barret R. Synthesis and biological evaluation of novel heterocyclic derivatives of combretastatin A-4. Bioorg Med Chem Lett 2012; 22:7227-31. [DOI: 10.1016/j.bmcl.2012.09.047] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2012] [Revised: 09/14/2012] [Accepted: 09/16/2012] [Indexed: 12/15/2022]
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204
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Jiang Z, Lu P, Wang Y. Three-Component Reaction of Propargyl Amines, Sulfonyl Azides, and Alkynes: One-Pot Synthesis of Tetrasubstituted Imidazoles. Org Lett 2012. [DOI: 10.1021/ol303023y] [Citation(s) in RCA: 89] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Zheng Jiang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Ping Lu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Yanguang Wang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
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205
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Cai ZJ, Wang SY, Ji SJ. CuI/BF3·Et2O cocatalyzed aerobic dehydrogenative reactions of ketones with benzylamines: facile synthesis of substituted imidazoles. Org Lett 2012; 14:6068-71. [PMID: 23167242 DOI: 10.1021/ol302955u] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A novel CuI/BF(3)·Et(2)O/O(2)-mediated reaction utilizing ketones and benzylamines for the construction of substituted imidazoles in one step under mild conditions has been demonstrated. This protocol involved the removal of eight hydrogen atoms, the functionalization of four C(sp(3))-H bonds and three new C-N bond formations.
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Affiliation(s)
- Zhong-Jian Cai
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
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206
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Akkurt M, Marzouk AA, Abbasov VM, Abdelhamid AA, Gurbanov AV. 2-(4-Meth-oxy-phen-yl)-4,5-diphenyl-1-(prop-2-en-1-yl)-1H-imidazole. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o3113-4. [PMID: 23284439 PMCID: PMC3515219 DOI: 10.1107/s1600536812041979] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2012] [Accepted: 10/07/2012] [Indexed: 11/29/2022]
Abstract
The asymmetric unit of the title compound, C25H22N2O, contains two independent molecules (A and B), with significantly different conformations. In molecule A, the central imidazole ring makes dihedral angles of 88.26 (10) and 12.74 (11)° with the two phenyl rings, and 22.06 (9)° with the benzene ring. In molecule B, one of the phenyl rings is disordered over two sites, each having an occupancy of 0.5. Here the central imidazole ring forms dihedral angles of 79.24 (10)° with the ordered phenyl ring, and 3.5 (5) and 22.6 (5)° with the two parts of the disordered phenyl ring. The dihedral angle involving the benzene ring is 67.49 (10)°. The —N—C(H2)—C(H)—C(H2) torsion angles of the prop-1-ene group in the two molecules are very similar, 0.5 (3) and 1.3 (4)° for molecules A and B, respectively. The crystal structure is stabilized by C—H⋯π interactions.
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Affiliation(s)
- Mehmet Akkurt
- Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey
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207
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Veeranarayana Reddy M, Jeong YT. Indium trifluoride: A highly efficient catalyst for the synthesis of fluorine-containing 2,4,5-trisubstituted imidazoles under solvent-free conditions. J Fluor Chem 2012. [DOI: 10.1016/j.jfluchem.2012.06.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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208
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Tseng CH, Li CY, Chiu CC, Hu HT, Han CH, Chen YL, Tzeng CC. Combretastatin A-4 derivatives: synthesis and evaluation of 2,4,5-triaryl-1H-imidazoles as potential agents against H1299 (non-small cell lung cancer cell). Mol Divers 2012; 16:697-709. [DOI: 10.1007/s11030-012-9396-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2012] [Accepted: 09/03/2012] [Indexed: 11/29/2022]
Affiliation(s)
- Chih-Hua Tseng
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan, ROC
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209
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Trichloroisocyanuric acid-catalyzed one-pot synthesis of 2,4,5-trisubstituted imidazoles. MONATSHEFTE FUR CHEMIE 2012. [DOI: 10.1007/s00706-012-0830-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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210
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Lewis acid catalyst free synthesis of substituted imidazoles in 2,2,2-trifluoroethanol. MONATSHEFTE FUR CHEMIE 2012. [DOI: 10.1007/s00706-012-0834-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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211
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Sitnikov N, Velder J, Abodo L, Cuvelier N, Neudörfl J, Prokop A, Krause G, Fedorov AY, Schmalz HG. Total Synthesis of Indole-Derived Allocolchicine Analogues Exhibiting Strong Apoptosis-Inducing Activity. Chemistry 2012; 18:12096-102. [DOI: 10.1002/chem.201200083] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2012] [Revised: 06/21/2012] [Indexed: 11/05/2022]
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212
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Lu Y, Chen J, Xiao M, Li W, Miller DD. An overview of tubulin inhibitors that interact with the colchicine binding site. Pharm Res 2012; 29:2943-71. [PMID: 22814904 DOI: 10.1007/s11095-012-0828-z] [Citation(s) in RCA: 551] [Impact Index Per Article: 45.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Accepted: 07/05/2012] [Indexed: 12/13/2022]
Abstract
Tubulin dynamics is a promising target for new chemotherapeutic agents. The colchicine binding site is one of the most important pockets for potential tubulin polymerization destabilizers. Colchicine binding site inhibitors (CBSI) exert their biological effects by inhibiting tubulin assembly and suppressing microtubule formation. A large number of molecules interacting with the colchicine binding site have been designed and synthesized with significant structural diversity. CBSIs have been modified as to chemical structure as well as pharmacokinetic properties, and tested in order to find a highly potent, low toxicity agent for treatment of cancers. CBSIs are believed to act by a common mechanism via binding to the colchicine site on tubulin. The present review is a synopsis of compounds that have been reported in the past decade that have provided an increase in our understanding of the actions of CBSIs.
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Affiliation(s)
- Yan Lu
- Department of Pharmaceutical Sciences, Health Science Center, University of Tennessee, 847 Monroe Ave, Memphis, TN 38163, USA
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213
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Tavakoli Z, Bagherneghad M, Niknam K. Synthesis of 1,2,4,5-Tetrasubstituted Imidazoles Using Sulfuric Acid ([3-(3-Silicapropyl)sulfanyl]propyl]ester as a Recyclable Solid Acid. J Heterocycl Chem 2012. [DOI: 10.1002/jhet.847] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Ziba Tavakoli
- Department of Chemistry; Islamic Azad University; Gachsaran Branch Gachsaran Iran
| | - Mojtaba Bagherneghad
- Department of Chemistry; Islamic Azad University; Gachsaran Branch Gachsaran Iran
| | - Khodabakhsh Niknam
- Department of Chemistry; Islamic Azad University; Gachsaran Branch Gachsaran Iran
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214
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Exploration of the SAR of anti-invasive chalcones: synthesis and biological evaluation of conformationally restricted analogues. Bioorg Med Chem 2012; 20:4812-9. [PMID: 22743088 DOI: 10.1016/j.bmc.2012.05.069] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2012] [Revised: 04/25/2012] [Accepted: 05/29/2012] [Indexed: 12/24/2022]
Abstract
In order to get a clearer view on the active geometry of anti-invasive chalcones, we have prepared a number of isoxazoles and related substances as conformationally restrained mimics of 1,3-diarylpropenones, and also of (Z)-stilbenes. In vitro anti-invasive activity data for 3,5-isoxazoles and 4,5-isoxazoles, together with an in silico geometrical comparison, point towards an active conformation for chalcones more resembling their s-trans geometry than the s-cis counterpart.
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215
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Reddy MVR, Akula B, Cosenza SC, Lee CM, Mallireddigari MR, Pallela VR, Subbaiah DRCV, Udofa A, Reddy EP. (Z)-1-aryl-3-arylamino-2-propen-1-ones, highly active stimulators of tubulin polymerization: synthesis, structure-activity relationship (SAR), tubulin polymerization, and cell growth inhibition studies. J Med Chem 2012; 55:5174-87. [PMID: 22587519 DOI: 10.1021/jm300176j] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Tubulin, the major structural component of microtubules, is a target for the development of anticancer agents. A series of (Z)-1-aryl-3-arylamino-2-propen-1-one (10) were synthesized and evaluated for antiproliferative activity in cell-based assay. The most active compound (Z)-1-(2-bromo-3,4,5-trimethoxyphenyl)-3-(3-hydroxy-4-methoxyphenylamino)prop-2-en-1-one (10ae) was tested in 20 tumor cell lines including multidrug resistant phenotype and was found to induce apoptosis in all these cell lines with similar GI(50) values. Flow cytometry studies showed that 10ae arrested the cells in G2/M phase of cell cycle. In addition to G2/M block, these compounds caused microtubule stabilization like paclitaxel and induced apoptosis via activation of the caspase family. The observations made in this investigation demonstrate that (Z)-1-Aryl-3-arylamino-2-propen-1-one (10) represents a new class of microtubule-stabilizing agents.
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Affiliation(s)
- M V Ramana Reddy
- Department of Oncological Sciences, Mount Sinai School of Medicine, Icahn Medical Institute, 1425 Madison Avenue, New York, New York 10029-6514, United States.
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216
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Abdel-Aziz M, Aly OM, Khan SS, Mukherjee K, Bane S. Synthesis, Cytotoxic Properties and Tubulin Polymerization Inhibitory Activity of Novel 2-Pyrazoline Derivatives. Arch Pharm (Weinheim) 2012; 345:535-48. [DOI: 10.1002/ardp.201100471] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2011] [Revised: 02/22/2012] [Accepted: 02/24/2012] [Indexed: 11/11/2022]
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217
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Veisi H, Khazaei A, Heshmati L, Hemmati S. Convenient One-Pot Synthesis of 2,4,5-Triaryl-1H-imidazoles from Arylaldehydes, Benzyl Alcohols, or Benzyl Halides with HMDS in the Presence of Molecular Iodine. B KOREAN CHEM SOC 2012. [DOI: 10.5012/bkcs.2012.33.4.1231] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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218
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Karami B, Eskandari K, Farahi M, Barmas A. An Effective and New Method for the Synthesis of Polysubstituted Imidazoles by the Use of CrCl3.6H2O as a Green and Reusable Catalyst: Synthasis of Some Novel Imidazole Derivatives. J CHIN CHEM SOC-TAIP 2012. [DOI: 10.1002/jccs.201100555] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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219
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Affiliation(s)
- Morteza Shiri
- Department of Chemistry, Faculty of Science, Alzahra University, Vanak, Tehran, Iran.
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220
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De Moliner F, Hulme C. Straightforward assembly of phenylimidazoquinoxalines via a one-pot two-step MCR process. Org Lett 2012; 14:1354-7. [PMID: 22356134 PMCID: PMC3311158 DOI: 10.1021/ol3003282] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
An efficient multicomponent-based methodology providing a new entry into a medicinally important complex heterocyclic core is presented. The strategy is very general and able to endow target compounds with the highest possible number of diversity points. Notably, four new chemical bonds and two aromatic rings are formed in a one-pot fashion.
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Affiliation(s)
- Fabio De Moliner
- College of Pharmacy, BIO5 Oro Valley, 1580 E. Hanley Blvd, The University of Arizona, Tucson, AZ 85737, USA
| | - Christopher Hulme
- College of Pharmacy, BIO5 Oro Valley, 1580 E. Hanley Blvd, The University of Arizona, Tucson, AZ 85737, USA
- Department of Chemistry and Biochemistry, The University of Arizona, Tucson, AZ 85721, USA
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221
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Increased endothelial cell selectivity of triazole-bridged dihalogenated A-ring analogues of combretastatin A–1. Bioorg Med Chem 2012; 20:1749-59. [DOI: 10.1016/j.bmc.2012.01.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2011] [Revised: 01/03/2012] [Accepted: 01/05/2012] [Indexed: 11/22/2022]
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222
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Tripodi F, Pagliarin R, Fumagalli G, Bigi A, Fusi P, Orsini F, Frattini M, Coccetti P. Synthesis and Biological Evaluation of 1,4-Diaryl-2-azetidinones as Specific Anticancer Agents: Activation of Adenosine Monophosphate Activated Protein Kinase and Induction of Apoptosis. J Med Chem 2012; 55:2112-24. [DOI: 10.1021/jm201344a] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Farida Tripodi
- Department of Biotechnology
and Biosciences, University of Milan-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
| | - Roberto Pagliarin
- Department of Organic and Industrial
Chemistry, University of Milan, Via Venezian
21, 20133 Milan, Italy
| | - Gabriele Fumagalli
- Department of Organic and Industrial
Chemistry, University of Milan, Via Venezian
21, 20133 Milan, Italy
| | - Alessandra Bigi
- Department of Biotechnology
and Biosciences, University of Milan-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
| | - Paola Fusi
- Department of Biotechnology
and Biosciences, University of Milan-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
| | - Fulvia Orsini
- Department of Organic and Industrial
Chemistry, University of Milan, Via Venezian
21, 20133 Milan, Italy
| | - Milo Frattini
- Institute of Pathology, Via in Selva 24,
6600 Locarno, Switzerland
| | - Paola Coccetti
- Department of Biotechnology
and Biosciences, University of Milan-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
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223
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Behbahani FK, Yektanezhad T. A greener route for the one-pot synthesis of 1,2,4,5-tetraarylated imidazoles. MONATSHEFTE FUR CHEMIE 2012. [DOI: 10.1007/s00706-012-0724-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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224
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3-Substituted 2-Phenylimidazo[2,1-b]benzothiazoles: Synthesis, Anticancer Activity, and Inhibition of Tubulin Polymerization. ChemMedChem 2012; 7:292-300. [DOI: 10.1002/cmdc.201100511] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2011] [Revised: 12/07/2011] [Indexed: 11/07/2022]
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225
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Gupta P, Paul S. Sulfonated carbon/silica composite functionalized Lewis acids for one-pot synthesis of 1,2,4,5-tetrasubstituted imidazoles, 3,4-dihydropyrimidin-2(1H)-ones and for Michael addition of indole to α,β-unsaturated ketones. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.molcata.2011.10.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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226
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Kamal A, Viswanath A, Ramaiah MJ, Murty JNSRC, Sultana F, Ramakrishna G, Tamboli JR, Pushpavalli SNCVL, pal D, Kishor C, Addlagatta A, Bhadra MP. Synthesis of tetrazole–isoxazoline hybrids as a new class of tubulin polymerization inhibitors. MEDCHEMCOMM 2012. [DOI: 10.1039/c2md20085f] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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227
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Romagnoli R, Baraldi PG, Salvador MK, Preti D, Aghazadeh Tabrizi M, Brancale A, Fu XH, Li J, Zhang SZ, Hamel E, Bortolozzi R, Basso G, Viola G. Synthesis and evaluation of 1,5-disubstituted tetrazoles as rigid analogues of combretastatin A-4 with potent antiproliferative and antitumor activity. J Med Chem 2011; 55:475-88. [PMID: 22136312 DOI: 10.1021/jm2013979] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Tubulin, the major structural component of microtubules, is a target for the development of anticancer agents. Two series of 1,5-diaryl substituted 1,2,3,4-tetrazoles were concisely synthesized, using a palladium-catalyzed cross-coupling reaction, and identified as potent antiproliferative agents and novel tubulin polymerization inhibitors that act at the colchicine site. SAR analysis indicated that compounds with a 4-ethoxyphenyl group at the N-1 or C-5 position of the 1,2,3,4-tetrazole ring exhibited maximal activity. Several of these compounds also had potent activity in inhibiting the growth of multidrug resistant cells overexpressing P-glycoprotein. Active compounds induced apoptosis through the mitochondrial pathway with activation of caspase-9 and caspase-3. Furthermore, compound 4l significantly reduced in vivo the growth of the HT-29 xenograft in a nude mouse model, suggesting that 4l is a promising new antimitotic agent with clinical potential.
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Affiliation(s)
- Romeo Romagnoli
- Dipartimento di Scienze Farmaceutiche, Università di Ferrara, 44100 Ferrara, Italy.
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228
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Design, synthesis, biological evaluation and molecular modeling of 1,3,4-oxadiazoline analogs of combretastatin-A4 as novel antitubulin agents. Bioorg Med Chem 2011; 20:903-9. [PMID: 22192936 DOI: 10.1016/j.bmc.2011.11.057] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2011] [Revised: 11/25/2011] [Accepted: 11/25/2011] [Indexed: 11/23/2022]
Abstract
A total of 20 novel 1,3,4-oxadiazoline analogs (6a-6t) of combretastatin A-4 with naphthalene ring were designed, synthesized, and evaluated for biological activities as potential tubulin polymerization inhibitors. Among these compounds, 6n showed the most potent antiproliferative activities against multiple cancer cell lines and retained the microtubule disrupting effects. Docking simulation was performed to insert compound 6n into the crystal structure of tubulin to determine the probable binding model. These results indicated oxadiazoline compounds bearing the naphthyl moiety are promising tubulin inhibitors.
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229
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Lee HY, Chang JY, Nien CY, Kuo CC, Shih KH, Wu CH, Chang CY, Lai WY, Liou JP. 5-Amino-2-aroylquinolines as highly potent tubulin polymerization inhibitors. Part 2. The impact of bridging groups at position C-2. J Med Chem 2011; 54:8517-25. [PMID: 22060033 DOI: 10.1021/jm201031f] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
A variety of studies on the modification of combretastatin A-4 triggered our interest in the impact of the linkers between the 3,4,5-trimethoxyphenyl ring and 5-amino-6-methoxyquinoline on biological activity. The replacement of the carbonyl group with bond, amine, ether, sulfide, and sulfone groups was evaluated in this study. The results showed that compounds 14 and 15 containing sulfide and sulfone groups between the 3,4,5-trimethoxyphenyl ring (A-ring) and 5-amino-6-methoxyquinoline exhibited substantial antiproliferative activity against KB, HT29, and MKN45 cells with mean IC50 values of 42 and 12 nM, respectively. 15 inhibited the tubulin polymerization with an IC50 value of 2.0 μM, similar to that with CA4. The continued work on the C-5 substituents of 3',4',5'-trimethoxybenzoyl-6-methoxyquinoline derivatives demonstrated that compound 7 possessing OH at C-5 exhibited excellent antiproliferative activity with mean IC50 values of 3.4 nM and microtubule destabilizing potency with an IC50 of 1.5 μM, comparable to that of CA4 (IC50=1.9 μM). It also exhibited substantial vascular disrupting effects. Compounds 7 and 15 exhibited significant efficacy against MDR/MRP-related drug-resistant cell lines (KB-vin10, KB-S15, and KB-7D) with mean IC50 values of 6.7 and 2.6 nM, respectively.
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Affiliation(s)
- Hsueh-Yun Lee
- School of Pharmacy, College of Pharmacy, Taipei Medical University, and Department of Obstetrics and Gynecology, Cheng Hsin General Hospital, 250 Wuxing Street, Taipei 11031, Taiwan, Republic of China
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230
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Mamedov VA, Zhukova NA, Beschastnova TN, Gubaidullin AT. Benzimidazoles and related heterocycles. Russ Chem Bull 2011. [DOI: 10.1007/s11172-011-0146-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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231
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Rao VK, Chhikara BS, Tiwari R, Shirazi AN, Parang K, Kumar A. One-pot regioselective synthesis of tetrahydroindazolones and evaluation of their antiproliferative and Src kinase inhibitory activities. Bioorg Med Chem Lett 2011; 22:410-4. [PMID: 22119472 DOI: 10.1016/j.bmcl.2011.10.124] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2011] [Revised: 10/27/2011] [Accepted: 10/31/2011] [Indexed: 11/17/2022]
Abstract
A number of 2-substituted tetrahydroindazolones were synthesized by three-component condensation reaction of 1,3-diketones, substituted hydrazines, benzaldehydes, and Yb(OTf)(3) as a catalyst in [bmim][BF(4)] ionic liquid using a simple, efficient, and economical one-pot method. The synthesized tetrahydroindazolones were evaluated for inhibition of cell proliferation of human colon carcinoma (HT-29), human ovarian adenocarcinoma (SK-OV-3), and c-Src kinase activity. 3,4-Dichlorophenyl tetrahydroindazolone derivative (15) inhibited the cell proliferation of HT-29 and SK-OV-3 cells by 62% and 58%, respectively. 2,3-Diphenylsubstituted tetrahydroindazolone derivatives, inhibited the cell proliferation of HT-29 cells by 65-72% at a concentration of 50 μM. In general, the tetrahydroindazolones showed modest inhibition of c-Src kinase where 4-tertbutylphenyl- and 3,4-dichlorophenyl- derivatives showed the inhibition of c-Src kinase with IC(50) values of 35.1 and 50.7 μM, respectively.
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Affiliation(s)
- V Kameshwara Rao
- Department of Chemistry, Birla Institute of Technology and Science, Pilani 333031, Rajasthan, India
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232
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Biersack B, Muthukumar Y, Schobert R, Sasse F. Cytotoxic and antivascular 1-methyl-4-(3-fluoro-4-methoxyphenyl)-5-(halophenyl)-imidazoles. Bioorg Med Chem Lett 2011; 21:6270-3. [DOI: 10.1016/j.bmcl.2011.09.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2011] [Revised: 08/31/2011] [Accepted: 09/01/2011] [Indexed: 11/26/2022]
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233
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Safari J, Khalili SD, Banitaba SH, Dehghani H. Zinc (II) [tetra(4-methylphenyl)] Porphyrin: a Novel and Reusable Catalyst for Efficient Synthesis of 2,4,5-trisubstituted Imidazoles Under Ultrasound Irradiation. JOURNAL OF THE KOREAN CHEMICAL SOCIETY-DAEHAN HWAHAK HOE JEE 2011. [DOI: 10.5012/jkcs.2011.55.5.787] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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234
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General Au-Catalyzed Benzannulation Towards Naturally Occurring Carbazole Alkaloids from Methoxypropadiene. Chemistry 2011; 17:13134-7. [DOI: 10.1002/chem.201102251] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Indexed: 11/07/2022]
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235
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Kaps L, Biersack B, Müller-Bunz H, Mahal K, Münzner J, Tacke M, Mueller T, Schobert R. Gold(I)-NHC complexes of antitumoral diarylimidazoles: structures, cellular uptake routes and anticancer activities. J Inorg Biochem 2011; 106:52-8. [PMID: 22112840 DOI: 10.1016/j.jinorgbio.2011.08.026] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2011] [Revised: 08/23/2011] [Accepted: 08/23/2011] [Indexed: 11/28/2022]
Abstract
Five new heterocyclic gold carbene complexes were prepared, four chlorido-[1,3-dimethyl-4,5-diarylimidazol-2-ylidene]gold complexes 6a-d and a chlorido-[1,3-dibenzylimidazol-2-ylidene]gold complex 11, and three of them were characterised by X-ray single crystal analyses. They were tested for cytotoxicity against a panel of four human cancer cell lines and non-malignant fibroblasts, for tubulin interaction, and for the pathways of their uptake into 518A2 melanoma cells. All complexes showed cytotoxic activity in the micromolar IC(50) range with distinct selectivities for certain cell lines. In stark contrast to related metal-free 1-methyl-4,5-diarylimidazoles, the complexes 6 and 11 did not noticeably inhibit the polymerisation of tubulin to give microtubules. The cellular uptake of complexes 6 occurred mainly via the copper transporter (Ctr1) and the organic cation transporters (OCT-1/2). Complex 11 was accumulated preferentially via the organic cation transporters and by Na(+)/K(+)-dependent endocytosis. The new gold carbene complexes seem to operate by a mechanism different from that of the parent 1-methylimidazolium ligands.
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Affiliation(s)
- Leonard Kaps
- Organic Chemistry Laboratory, University of Bayreuth, Bayreuth, Germany
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236
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Deng ZT, Feng T, Wang P, Qi X, Chen XH, Li YX, Song CL, Geng MY, Li J. Effects of the novel vascular targeting agent MDS-11P on tumor vascularity and its antitumor activity. Biochem Pharmacol 2011; 82:1832-42. [PMID: 21920350 DOI: 10.1016/j.bcp.2011.08.024] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2011] [Revised: 08/27/2011] [Accepted: 08/31/2011] [Indexed: 01/10/2023]
Abstract
Vascular disrupting agents show selective effects on tumor established vasculature, and achieve encouraging results in both pre-clinical and clinical experiments. In the present study, we investigated the effects of a new CA4 derivative MDS-11 and its prodrug MDS-11P on vascular disrupting activity in vitro and in vivo. Surface plasmon resonance (SPR) and tubulin polymerization assay showed that MDS-11 interacted with tubulin directly and inhibited tubulin polymerization in a cell free system, and western blot assay further confirmed the action in the cellular level. MDS-11 was found to significantly disrupt the microtubulin skeleton in proliferating HUVECs than quiescent ones determined by confocal microscopy. Furthermore, MDS-11 was found to damage the HUVEC-formed tube quickly, but did not influence structures of microvessels from aortic ring possessing pericytes and smooth muscle cells until 3 h treatment. In A549 xenograft mice, immunohistochemistry staining of tumor sections revealed that a single dose of MDS-11P led to large areas of necrosis within tumor and reduced the number of tumor vessels, which was consolidated by perfused vascular volume assay. Pharmacokinetic studies of MDS-11P indicated that MDS-11P rapidly converted to the active form, MDS-11, and exhibited a much faster elimination in mice. The antitumor analysis using H22 and A549 mice xenograft models revealed that the growth inhibition rates of MDS-11P at 50 mg/kg (twice a day for three weeks) reached 59.4%, 60.5% respectively without obvious weight loss. Taken together, these results suggest that MDS-11 is a potential vascular disrupting agent for further development of antitumor drug.
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Affiliation(s)
- Zhi-Ting Deng
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
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237
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Singh P, Mehra V, Anand A, Kumar V, Mahajan MP. β-Lactam-synthon-interceded diastereoselective synthesis of novel thioxo-imidazolines: a convenient access to functionally decorated 4,5-dihydro-imidazoles. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.07.089] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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238
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Niknam K, Deris A, Naeimi F, Majleci F. Synthesis of 1,2,4,5-tetrasubstituted imidazoles using silica-bonded propylpiperazine N-sulfamic acid as a recyclable solid acid catalyst. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.06.105] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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239
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O’Boyle NM, Carr M, Greene LM, Keely NO, Knox AJ, McCabe T, Lloyd DG, Zisterer DM, Meegan MJ. Synthesis, biochemical and molecular modelling studies of antiproliferative azetidinones causing microtubule disruption and mitotic catastrophe. Eur J Med Chem 2011; 46:4595-607. [DOI: 10.1016/j.ejmech.2011.07.039] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2011] [Revised: 06/13/2011] [Accepted: 07/22/2011] [Indexed: 10/17/2022]
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240
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Safari J, Khalili SD, Banitaba SH. Three-Component, One-Pot Synthesis of 2,4,5-Trisubstituted Imidazoles Catalyzed by TiCl4-SiO2Under Conventional Heating Conditions or Microwave Irradiation. SYNTHETIC COMMUN 2011. [DOI: 10.1080/00397911.2010.502994] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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241
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Chen J, Li CM, Wang J, Ahn S, Wang Z, Lu Y, Dalton JT, Miller DD, Li W. Synthesis and antiproliferative activity of novel 2-aryl-4-benzoyl-imidazole derivatives targeting tubulin polymerization. Bioorg Med Chem 2011; 19:4782-95. [PMID: 21775150 PMCID: PMC3152597 DOI: 10.1016/j.bmc.2011.06.084] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2011] [Revised: 06/24/2011] [Accepted: 06/28/2011] [Indexed: 11/28/2022]
Abstract
We previously reported the discovery of 2-aryl-4-benzoyl-imidazoles (ABI-I) as potent antiproliferative agents for melanoma. To further understand the structural requirements for the potency of ABI analogs, gain insight in the structure-activity relationships (SAR), and investigate metabolic stability for these compounds, we report extensive SAR studies on the ABI-I scaffold. Compared with the previous set of ABI-I analogs, the newly synthesized ABI-II analogs have lower potency in general, but some of the new analogs have comparable potency to the most active compounds in the previous set when tested in two melanoma and four prostate cancer cell lines. These SAR studies indicated that the antiproliferative activity was very sensitive to subtle changes in the ligand. Tested compounds 3ab and 8a are equally active against highly paclitaxel resistant cancer cell lines and their parental cell lines, indicating that drugs developed based on ABI-I analogs may have therapeutic advantages over paclitaxel in treating resistant tumors. Metabolic stability studies of compound 3ab revealed that N-methyl imidazole failed to extend stability as literature reported because de-methylation was found as the major metabolic pathway in rat and mouse liver microsomes. However, this sheds light on the possibility for many modifications on imidazole ring for further lead optimization since the modification on imidazole, such as compound 3ab, did not impact the potency.
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Affiliation(s)
- Jianjun Chen
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | | | - Jin Wang
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | | | - Zhao Wang
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Yan Lu
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | | | - Duane D. Miller
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN 38163, USA
- GTx Inc., Memphis, TN, 38163, USA
| | - Wei Li
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN 38163, USA
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242
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Jin Y, Qi P, Wang Z, Shen Q, Wang J, Zhang W, Song H. 3D-QSAR Study of Combretastatin A-4 Analogs Based on Molecular Docking. Molecules 2011; 16:6684-700. [PMID: 25134772 PMCID: PMC6264539 DOI: 10.3390/molecules16086684] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2011] [Revised: 07/26/2011] [Accepted: 07/28/2011] [Indexed: 11/20/2022] Open
Abstract
Combretastatin A-4 (CA-4), its analogues and their excellent antitumoral and antivascular activities, have attracted considerable interest of medicinal chemists. In this article, a docking simulation was used to identify molecules having the same binding mode as the lead compound, and 3D-QSAR models had been built by using CoMFA based on docking. As a result, these studies indicated that the QSAR models were statistically significant with high predictabilities (CoMFA model, q2 = 0.786, r2 = 0.988). Our models may offer help to better comprehend the structure-activity relationships for this class of compounds and also facilitate the design of novel inhibitors with good chemical diversity.
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Affiliation(s)
- Yinghua Jin
- Department of Pharmacy, General Hospital of Beijing Military Command. Nanmencang No.5, Dongcheng District, Beijing 100700, China
| | - Ping Qi
- Department of Pharmacy, General Hospital of Beijing Military Command. Nanmencang No.5, Dongcheng District, Beijing 100700, China
| | - Zhiwei Wang
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University. No.103, Wenhua Road, Shenhe District, Shenyang 110016, Liaoning, China
| | - Qirong Shen
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University. No.103, Wenhua Road, Shenhe District, Shenyang 110016, Liaoning, China
| | - Jian Wang
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University. No.103, Wenhua Road, Shenhe District, Shenyang 110016, Liaoning, China
| | - Weige Zhang
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University. No.103, Wenhua Road, Shenhe District, Shenyang 110016, Liaoning, China.
| | - Hongrui Song
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University. No.103, Wenhua Road, Shenhe District, Shenyang 110016, Liaoning, China.
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243
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A simple and efficient method for the synthesis of highly substituted imidazoles using 3-aroylquinoxalin-2(1H)-ones. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.06.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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244
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Theeramunkong S, Caldarelli A, Massarotti A, Aprile S, Caprioglio D, Zaninetti R, Teruggi A, Pirali T, Grosa G, Tron GC, Genazzani AA. Regioselective Suzuki Coupling of Dihaloheteroaromatic Compounds as a Rapid Strategy To Synthesize Potent Rigid Combretastatin Analogues. J Med Chem 2011; 54:4977-86. [DOI: 10.1021/jm200555r] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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245
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Emrani A, Davoodnia A, Tavakoli-Hoseini N. Alumina Supported Ammonium Dihydrogenphosphate (NH4H2PO4/Al2O3): Preparation, Characterization and Its Application as Catalyst in the Synthesis of 1,2,4,5-Tetrasubstituted Imidazoles. B KOREAN CHEM SOC 2011. [DOI: 10.5012/bkcs.2011.32.7.2385] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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246
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Teimouri A, Chermahini AN. An efficient and one-pot synthesis of 2,4,5-trisubstituted and 1,2,4,5-tetrasubstituted imidazoles catalyzed via solid acid nano-catalyst. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.molcata.2011.06.007] [Citation(s) in RCA: 87] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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247
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Romagnoli R, Baraldi PG, Brancale A, Ricci A, Hamel E, Bortolozzi R, Basso G, Viola G. Convergent synthesis and biological evaluation of 2-amino-4-(3',4',5'-trimethoxyphenyl)-5-aryl thiazoles as microtubule targeting agents. J Med Chem 2011; 54:5144-53. [PMID: 21663319 DOI: 10.1021/jm200392p] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Combretastatin A-4, a potent tubulin polymerization inhibitor, caused us to synthesize a novel series of 2-amino-4-(3',4',5'-trimethoxyphenyl)-5-aryl thiazoles with the goal of evaluating the effects of substituents on the phenyl at the 5-position of the thiazole skeleton on biological activities. An ethoxy group at the para-position produced the most active compound in the series, with IC(50) values of 0.03-0.9 nM against five of seven cancer cell lines. The most active compounds retained full activity in multidrug resistant cancer cells and acted through the colchicine site of tubulin. Treated cells were arrested in the G2/M phase of the cell cycle, with cell death proceeding through an apoptotic pathway that was only partially caspase-dependent. Preliminary results suggest that, in addition to cell death by apoptosis, cells were also killed via mitotic catastrophe as an alternative cell death mechanism.
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Affiliation(s)
- Romeo Romagnoli
- Dipartimento di Scienze Farmaceutiche, Università di Ferrara, 44100 Ferrara, Italy.
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248
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Liu JF, Fong YC, Chang KW, Kuo SC, Chang CS, Tang CH. FPTB, a novel CA-4 derivative, induces cell apoptosis of human chondrosarcoma cells through mitochondrial dysfunction and endoplasmic reticulum stress pathways. J Cell Biochem 2011; 112:453-62. [PMID: 21268067 DOI: 10.1002/jcb.22927] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Chondrosarcoma is a malignant primary bone tumor that responds poorly to both chemotherapy and radiation therapy. The aim of this study was to elucidate the mechanism of the novel Combretastatin A-4 derivative, 2-(furanyl)-5-(pyrrolidinyl)-1-(3,4,5-trimethoxybenzyl)benzoimidazole (FPTB)-induced human chondrosarcoma cells apoptosis. FPTB induced cell apoptosis in human chondrosarcoma cell line but not primary chondrocytes. FPTB induced up-regulation of Bax and Bak, down-regulation of Bcl-2 and Bcl-XL and dysfunction of mitochondria in chondrosarcoma. FPTB also triggered endoplasmic reticulum (ER) stress, as indicated by changes in cytosol-calcium levels. We found that FPTB increased glucose-regulated proteins (GRP)78 but not GRP94 expression. In addition, treatment of cells with FPTB induced calpain expression and activity. Transfection of cells with GRP78 or calpain siRNA reduced FPTB-mediated cell apoptosis. Therefore, FPTB-induced apoptosis in chondrosarcoma cells through the mitochondria dysfunction and involves caspase-9 and caspase-3-mediated mechanism. FPTB also induced cell death mediated by increasing ER stress, GPR78 activation, and Ca(2+) release, which subsequently triggers calpain, caspase-12 and caspase-3 activity, resulting in apoptosis.
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Affiliation(s)
- Ju-Fang Liu
- Graduate Institute of Pharmaceutical Chemistry, China Medical University, Taichung, Taiwan
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249
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Tcherniuk S, Deshayes S, Sarli V, Divita G, Abrieu A. UA62784 Is a Cytotoxic Inhibitor of Microtubules, not CENP-E. ACTA ACUST UNITED AC 2011; 18:631-41. [DOI: 10.1016/j.chembiol.2011.03.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2010] [Revised: 02/17/2011] [Accepted: 03/01/2011] [Indexed: 12/23/2022]
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250
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Solvent-free reaction between acenaphthoquinone, various benzils and ammonium acetate: synthesis of 9,10-diaryl-7H-benzo[d,e]imidazo[2,1-a]isoquinolin-7-ones. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.01.091] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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