301
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Bellina F, Cauteruccio S, Rossi R. Synthesis and biological activity of vicinal diaryl-substituted 1H-imidazoles. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.02.075] [Citation(s) in RCA: 164] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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302
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Sun CM, Lin LG, Yu HJ, Cheng CY, Tsai YC, Chu CW, Din YH, Chau YP, Don MJ. Synthesis and cytotoxic activities of 4,5-diarylisoxazoles. Bioorg Med Chem Lett 2007; 17:1078-81. [PMID: 17127061 DOI: 10.1016/j.bmcl.2006.11.023] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2006] [Revised: 10/12/2006] [Accepted: 11/08/2006] [Indexed: 10/23/2022]
Abstract
A series of 4,5-diarylisoxazoles related to combretastatin A-4 (CA-4) were synthesized and evaluated for cytotoxicity against three human cancer cell lines. Among them, compound 6e showed better cytotoxic activity than CA-4 in HeLa and HepG2 cell lines assayed with IC(50) value as low as 0.022 and 0.065nM, respectively.
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Affiliation(s)
- Chang-Ming Sun
- National Research Institute of Chinese Medicine, No. 155-1, Section 2, Li-Nung Street, Peitou, Taipei 112, Taiwan, ROC
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303
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304
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Zhang Q, Peng Y, Wang XI, Keenan SM, Arora S, Welsh WJ. Highly potent triazole-based tubulin polymerization inhibitors. J Med Chem 2007; 50:749-54. [PMID: 17249649 PMCID: PMC2694353 DOI: 10.1021/jm061142s] [Citation(s) in RCA: 120] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We describe the synthesis and biological evaluation of a series of tubulin polymerization inhibitors that contain the 1,2,4-triazole ring to retain the bioactive configuration afforded by the cis double bond in combretastatin A-4 (CA-4). Several of the subject compounds exhibited potent tubulin polymerization inhibitory activity as well as cytotoxicity against a variety of cancer cells including multi-drug-resistant (MDR) cancer cell lines. Attachment of the N-methyl-5-indolyl moiety to the 1,2,4-triazole core, as exemplified by compound 7, conferred optimal properties among this series. Computer docking and molecular simulations of 7 inside the colchicine binding site of tubulin enabled identification of residues most likely to interact strongly with these inhibitors and explain their potent anti-tubulin activity and cytotoxicity. It is hoped that results presented here will stimulate further examination of these substituted 1,2,4-triazoles as potential anti-cancer therapeutic agents.
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Affiliation(s)
| | | | | | | | | | - William J. Welsh
- Corresponding author: phone 732−235−3234; fax 732−235−3475; e-mail
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305
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Alberico D, Scott ME, Lautens M. Aryl−Aryl Bond Formation by Transition-Metal-Catalyzed Direct Arylation. Chem Rev 2007; 107:174-238. [PMID: 17212475 DOI: 10.1021/cr0509760] [Citation(s) in RCA: 3171] [Impact Index Per Article: 186.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dino Alberico
- Davenport Laboratories, Chemistry Department, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
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306
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Liou JP, Mahindroo N, Chang CW, Guo FM, Lee SWH, Tan UK, Yeh TK, Kuo CC, Chang YW, Lu PH, Tung YS, Lin KT, Chang JY, Hsieh HP. Structure-activity relationship studies of 3-aroylindoles as potent antimitotic agents. ChemMedChem 2007; 1:1106-18. [PMID: 16952120 DOI: 10.1002/cmdc.200600125] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The concise synthesis and structure-activity relationship (SAR) studies of 3-aroylindoles were carried out in an effort to improve the potency and solubility of anticancer drug candidate BPR0L075 (8) by exploring structure modifications through three regimens: substitution of the B ring, at the N1 position, and of the 3-carbonyl linker. The SAR information revealed that the methoxy group of the B ring could be replaced with an electron-donating group such as methyl (in compound 9) or N,N-dimethylamino (in compound 13) while retaining both strong cytotoxic and antitubulin activities. The introduction of amide (compounds 30-33) and carbamate (compounds 34-37) functionalities at the N1 position of 8 gave analogues with potent antiproliferative activities. The cytotoxic potency of 8 was improved by replacing the carbonyl group with sulfide (compound 41) or oxygen (compound 43), indicating that the carbonyl moiety is important but not essential. The N,N-dimethylamino derivative 13 not only displayed potent cytotoxicity and antitubulin activity, but also showed a markedly improved physicochemical profile relative to the parent compound.
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Affiliation(s)
- Jing-Ping Liou
- Division of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Zhunan, Miaoli County 350, Taiwan, Republic of China
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307
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Gracias V, Gasiecki AF, Pagano TG, Djuric SW. Synthesis of fused imidazole rings by sequential van Leusen/C–H bond activation. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.10.051] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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308
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Wu M, Sun Q, Yang C, Chen D, Ding J, Chen Y, Lin L, Xie Y. Synthesis and activity of Combretastatin A-4 analogues: 1,2,3-thiadiazoles as potent antitumor agents. Bioorg Med Chem Lett 2006; 17:869-73. [PMID: 17174089 DOI: 10.1016/j.bmcl.2006.11.060] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2006] [Revised: 11/02/2006] [Accepted: 11/22/2006] [Indexed: 10/23/2022]
Abstract
A series of 4,5-disubstitute-1,2,3-thiadiazole compounds were designed and synthesized as potent anticancer agents, some of them exhibited excellent in vitro and in vivo inhibitory activity.
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Affiliation(s)
- Maojiang Wu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, SIBS, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, PR China
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309
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Bellina F, Cauteruccio S, Monti S, Rossi R. Novel imidazole-based combretastatin A-4 analogues: Evaluation of their in vitro antitumor activity and molecular modeling study of their binding to the colchicine site of tubulin. Bioorg Med Chem Lett 2006; 16:5757-62. [PMID: 16950621 DOI: 10.1016/j.bmcl.2006.08.087] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2006] [Revised: 08/18/2006] [Accepted: 08/19/2006] [Indexed: 10/24/2022]
Abstract
The in vitro antitumor activity of novel combretastatin-like 1,5- and 1,2-diaryl-1H-imidazoles was evaluated against the NCI 60 human tumor cell lines panel. Compounds 2d and 2g proved to be more cytotoxic than CA-4 in tests involving their evaluation over a 10(-4)-10(-8) range. Docking experiments showed a good correlation between the MG_MID Log GI(50) values of all these compounds and their calculated interaction energies with the colchicine binding site of alphabeta-tubulin.
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Affiliation(s)
- Fabio Bellina
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Risorgimento 35, I-56126 Pisa, Italy.
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310
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Pandit B, Sun Y, Chen P, Sackett DL, Hu Z, Rich W, Li C, Lewis A, Schaefer K, Li PK. Structure–activity-relationship studies of conformationally restricted analogs of combretastatin A-4 derived from SU5416. Bioorg Med Chem 2006; 14:6492-501. [PMID: 16860559 DOI: 10.1016/j.bmc.2006.06.017] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2006] [Revised: 05/31/2006] [Accepted: 06/08/2006] [Indexed: 11/29/2022]
Abstract
A series of combretastatin A-4 analogs derived from the ATP competitive, VEGF receptor tyrosine kinase inhibitor, SU5416 were synthesized. The cytotoxic effects of the analogs were evaluated against PC-3 and MDA-MB-231 cancer cell lines, as well as their abilities to inhibit tubulin polymerization. Results are compared to those of compound 1, our lead compound previously reported.
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Affiliation(s)
- Bulbul Pandit
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA
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311
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Nakamura H, Kuroda H, Saito H, Suzuki R, Yamori T, Maruyama K, Haga T. Synthesis and biological evaluation of boronic acid containing cis-stilbenes as apoptotic tubulin polymerization inhibitors. ChemMedChem 2006; 1:729-40. [PMID: 16902927 DOI: 10.1002/cmdc.200600068] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
A series of boronic acid containing cis-stilbenes as potent inhibitors of tubulin polymerization was synthesized by the introduction of boronic acid as an acceptor-type functional group into the aromatic ring B of the combretastatin framework. High cell-growth inhibition was observed with boron compounds 13 c and 13 d, in which a hydroxy group on the aromatic ring B of combretastatin A-4 was replaced with boronic acid; IC50 values toward B-16 and 1-87 cell lines are 0.48-2.1 microM. Compounds 13 c and 13 d exhibited significant inhibitory activity toward tubulin polymerization (IC50=21-22 microM). The carboxylic acid derivative 17, which can be considered as a mimic of boronic acid 13 c, did not show significant inhibition of cell growth or tubulin polymerization. According to the FACScan analysis using Jurkat cells, apoptosis was induced after incubation for 8 h with 13 c at a concentration of >10(-8) M. Growth inhibitory experiments against a panel of 39 human cancer cell lines revealed 13 c to inhibit growth differently than combretastatin A-4; the correlation coefficient (r) between the two compounds was 0.553 in the COMPARE analysis.
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Affiliation(s)
- Hiroyuki Nakamura
- Department of Chemistry, Faculty of Science, Gakushuin University, Mejiro, Toshima-ku, Tokyo 171-8588, Japan.
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312
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Dupeyre G, Chabot GG, Thoret S, Cachet X, Seguin J, Guénard D, Tillequin F, Scherman D, Koch M, Michel S. Synthesis and biological evaluation of (3,4,5-trimethoxyphenyl)indol-3-ylmethane derivatives as potential antivascular agents. Bioorg Med Chem 2006; 14:4410-26. [PMID: 16529936 DOI: 10.1016/j.bmc.2006.02.037] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2005] [Revised: 02/16/2006] [Accepted: 02/21/2006] [Indexed: 11/20/2022]
Abstract
Combretastatin A-4 (CSA-4), a stilbene derivative, is a potent vascular disrupting agent (VDA) with the structural requirement of a cis-configuration to maintain a molecular geometry and a correct orientation of both phenyl groups. A series of indolic analogues of CSA-4 was synthesized by means of an efficient strategy. Six compounds (20b, 25b-27b, 32b, and 35b) were identified as potent inhibitors of tubulin polymerization and also displayed cytotoxic activities on B16 melanoma cells at a nanomolar level. Both activities were well correlated with the ability to induce morphological changes of EA.hy 926 endothelial cells. In conclusion, the cis-stilbene skeleton of CSA-4 could conveniently be replaced by the 3-aroylindolic moiety, thus avoiding any isomerization leading to inactive trans compounds.
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Affiliation(s)
- Grégory Dupeyre
- Université Paris 5, Faculté des Sciences Pharmaceutiques et Biologiques, UMR 8638 CNRS, Laboratoire de Pharmacognosie, France
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313
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Bellina F, Rossi R. Synthesis and biological activity of pyrrole, pyrroline and pyrrolidine derivatives with two aryl groups on adjacent positions. Tetrahedron 2006. [DOI: 10.1016/j.tet.2006.05.024] [Citation(s) in RCA: 531] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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314
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Kaffy J, Pontikis R, Carrez D, Croisy A, Monneret C, Florent JC. Isoxazole-type derivatives related to combretastatin A-4, synthesis and biological evaluation. Bioorg Med Chem 2006; 14:4067-77. [PMID: 16510288 DOI: 10.1016/j.bmc.2006.02.001] [Citation(s) in RCA: 100] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2005] [Revised: 01/30/2006] [Accepted: 02/03/2006] [Indexed: 12/28/2022]
Abstract
Novel combretastatin analogues bearing various five-membered heterocycles with consecutive oxygen and nitrogen atoms, in place of the olefinic bridge of CA4, have been synthesized (isoxazole, isoxazoline, oxadiazole, etc). These compounds have been evaluated for cytotoxicity and their ability to inhibit the tubulin assembly. On the basis of the relative position of the aromatic A- and B-rings on the heterocyclic moiety, they could be split in two classes, the alpha,gamma- or alpha,beta-diaryl heterocyclic derivatives. In the first series, the 3,5-diaryloxadiazole 9a displayed comparable antitubulin activity to that of CA4, but was devoid of cytotoxic effects. Among the alpha,beta-diaryl heterocyclic derivatives, the 4,5-diarylisoxazole 35 exhibited greater antitubulin activity than that of CA4 (0.75 vs 1.2 microM), but modest antiproliferative activity. These data showed that minor alteration in the chemical structure of the heterocyclic ring and its relative orientation with regard to the two phenyl rings of CA4 could dramatically influence the tubulin binding properties.
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Affiliation(s)
- Julia Kaffy
- CNRS, UMR 176, Institut Curie, Centre de Recherche, 26 rue d'Ulm, 75248 Paris cedex 05, France
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315
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Dömling A. Recent developments in isocyanide based multicomponent reactions in applied chemistry. Chem Rev 2006; 106:17-89. [PMID: 16402771 DOI: 10.1021/cr0505728] [Citation(s) in RCA: 3390] [Impact Index Per Article: 188.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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316
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Medarde M, Maya ABS, Pérez-Melero C. Naphthalene combretastatin analogues: synthesis, cytotoxicity and antitubulin activity. J Enzyme Inhib Med Chem 2006; 19:521-40. [PMID: 15662956 DOI: 10.1080/14756360412331280473] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
Synthesis and evaluation of new combretastatin analogues with varied modifications on the bridge and the aromatic rings, have shown that the 2-naphthyl moiety is a good surrogate for the 3-hydroxy-4-methoxyphenyl (B-ring) of combretastatin A-4. Other bicyclic systems, such as 6(7)-quinolyl and 5-indolyl, can replace the B-ring, but they produce less potent analogues in the cytotoxicity and tubulin polymerization inhibition assays. Other modifications are detrimental for the potency of the studied analogues. The 2-naphthyl combretastatin 53 and the related 6-quinolyl combretastatin 106 analogues are the most potent among the derivatives of this type, whereas 92 and 95 are the most potent among the naphthalene derivatives with a heterocycle in the bridge. Previous and new results in this family of combretastatin analogues are discussed.
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Affiliation(s)
- Manuel Medarde
- Laboratorio de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Salamanca, Campus Miguel de Unamuno, Salamanca, Spain.
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317
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Bellina F, Cauteruccio S, Mannina L, Rossi R, Viel S. Regiocontrolled Synthesis of 1,2-Diaryl-1H-imidazoles by Palladium- and Copper-Mediated Direct Coupling of 1-Aryl-1H-imidazoles with Aryl Halides under Ligandless Conditions. European J Org Chem 2006. [DOI: 10.1002/ejoc.200500636] [Citation(s) in RCA: 96] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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318
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Hoarau C, Du Fou de Kerdaniel A, Bracq N, Grandclaudon P, Couture A, Marsais F. Regioselective palladium-catalyzed phenylation of ethyl 4-oxazolecarboxylate. Tetrahedron Lett 2005. [DOI: 10.1016/j.tetlet.2005.09.192] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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319
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LeBlanc R, Dickson J, Brown T, Stewart M, Pati HN, VanDerveer D, Arman H, Harris J, Pennington W, Holt HL, Lee M. Synthesis and cytotoxicity of epoxide and pyrazole analogs of the combretastatins. Bioorg Med Chem 2005; 13:6025-34. [PMID: 16055334 DOI: 10.1016/j.bmc.2005.06.028] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2005] [Revised: 06/02/2005] [Accepted: 06/09/2005] [Indexed: 11/29/2022]
Abstract
Twenty-six epoxide and corresponding pyrazole derivatives, of the structurally related chalcones and combretastatin A-4 (CA-4), were synthesized and tested for in vitro cytotoxicity. These molecules were synthesized by epoxidation of the relevant chalcones, followed by reaction with hydrazine. The structures of epoxides 3 and 7, and pyrazole 17, were confirmed by X-ray diffraction studies. The relatively coplanar conformation of a 3',3'',4',4'',5',5''-hexamethoxypyrazole 17 was in good agreement with the shape for 3',3'',4',4'',5'-pentamethoxypyrazole 16, which was determined from molecular mechanics optimization. In vitro cytotoxicity of each class of compounds was obtained using a 72 h continuous exposure MTT assay against two murine cancer cell lines; B16 melanoma and L1210 leukemia. The effect of substitution in the A-ring is addressed: three methoxy groups versus two, generally increased cytotoxicity across both cell lines. In the majority of cases, the pyrazoles are generally more active than the epoxides, with the most active, 5-(3''-amino-4''-methoxyphenyl)-3-(3',4',5'-trimethoxyphenyl)pyrazole 21, possessing an IC(50) value of 5 and 2.4 microM (B16 and L1210, respectively). Due to their planar conformations, the pyrazoles are typically less active than the corresponding chalcones, which adopt angular conformations similar to CA-4. B-ring modifications confirmed that in general the amino compounds are more active than the corresponding nitro compounds. Varying the number and orientation of methoxy groups on the A-ring did not produce any significant differences in toxicity in the cell lines studied.
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Affiliation(s)
- Regan LeBlanc
- Department of Chemistry, Furman University, Greenville, SC 29613, USA
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320
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Kong Y, Grembecka J, Edler MC, Hamel E, Mooberry SL, Sabat M, Rieger J, Brown ML. Structure-Based Discovery of a Boronic Acid Bioisostere of Combretastatin A-4. ACTA ACUST UNITED AC 2005; 12:1007-14. [PMID: 16183025 DOI: 10.1016/j.chembiol.2005.06.016] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2005] [Revised: 06/17/2005] [Accepted: 06/30/2005] [Indexed: 11/30/2022]
Abstract
Targeting the microtubule system represents an attractive strategy for the development of anticancer agents. In this study, we report a class of combretastatin A-4 (CA-4) analogs derivatized with a boronic acid moiety replacing the hydroxyl group on the C-ring of CA-4. Docking studies of the X-ray structures of our aryl-boronic analogs onto an X-ray structure of the alpha,beta-tubulin heterodimer suggested that cis-6 was a potent inhibitor of the colchicine binding. The model indicated that there would be strong hydrogen bonding between the boronic acid moiety and Thr-179 and Val-181 of alpha-tubulin. We demonstrate that the cis-6 boronic acid bioisostere of CA-4: (1) inhibits tubulin assembly, (2) competitively displaces colchicine, and (3) is a low-nanomolar inhibitor of human cancer cell lines. We present this isostere as a class of potent analogs of CA-4.
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Affiliation(s)
- Yali Kong
- Department of Chemistry, University of Virginia, Charlottesville, 22904, USA
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321
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Sánchez Maya AB, Pérez-Melero C, Salvador N, Peláez R, Caballero E, Medarde M. New naphthylcombretastatins. Modifications on the ethylene bridge. Bioorg Med Chem 2005; 13:2097-107. [PMID: 15727863 DOI: 10.1016/j.bmc.2005.01.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2004] [Accepted: 01/07/2005] [Indexed: 11/24/2022]
Abstract
Compounds with three aromatic systems, carrying a 2-naphthalene and a 3,4,5-trimethoxyphenyl moieties bonded to five-membered, six-membered or fused heterocycles display potent cytotoxic effect and inhibition of tubulin polymerization, in agreement with their structural similarity to combretastatins and their heterocyclic analogues.
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Affiliation(s)
- Ana B Sánchez Maya
- Laboratorio de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Salamanca, Campus Miguel de Unamuno, 37007 Salamanca, Spain
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322
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Li Q, Sham HL. Discovery and development of antimitotic agents that inhibit tubulin polymerisation for the treatment of cancer. Expert Opin Ther Pat 2005. [DOI: 10.1517/13543776.12.11.1663] [Citation(s) in RCA: 101] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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323
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SYNTHESIS AND BIOLOGICAL EVALUATION OF CIS-COMBRETASTATIN ANALOGS AND THEIR NOVEL 1,2,3-TRIAZOLE DERIVATIVES. HETEROCYCL COMMUN 2005. [DOI: 10.1515/hc.2005.11.2.117] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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324
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Schlummer B, Scholz U. Palladium-Catalyzed CN and CO Coupling-A Practical Guide from an Industrial Vantage Point†. Adv Synth Catal 2004. [DOI: 10.1002/adsc.200404216] [Citation(s) in RCA: 591] [Impact Index Per Article: 29.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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325
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326
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Kaffy J, Monneret C, Mailliet P, Commerçon A, Pontikis R. 1,3-Dipolar cycloaddition route to novel isoxazole-type derivatives related to combretastatin A-4. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2004.03.020] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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327
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Raffa D, Daidone G, Maggio B, Cascioferro S, Plescia F, Schillaci D. Synthesis and antileukemic activity of new 3-(1-phenyl-3-methylpyrazol-5-yl)-2-styrylquinazolin-4(3H)-ones. ACTA ACUST UNITED AC 2004; 59:215-21. [PMID: 14987985 DOI: 10.1016/j.farmac.2003.10.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2003] [Accepted: 10/24/2003] [Indexed: 10/26/2022]
Abstract
3-(1-Phenyl-3-methylpyrazol-5-yl)-2-styrylquinazolin-4(3H)-ones 14a-q and 15a-q were synthesized by refluxing in acetic acid the corresponding 2-methylquinazolinones 12 and 13 with the opportune benzoic aldehyde for 12 h. The synthesized styrylquinazolinones 14a-q and 15a-q were tested in vitro for their antileukemic activity against L1210 (murine leukemia), K562 (human chronic myelogenous leukemia) and HL60 (human leukemia) cell lines showing in some cases good activity.
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Affiliation(s)
- Demetrio Raffa
- Dipartimento di Chimica e Tecnologie Farmaceutiche, Università degli Studi di Palermo, Via Archirafi 32, Palermo 90123, Italy.
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328
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Hsieh HP, Liou JP, Lin YT, Mahindroo N, Chang JY, Yang YN, Chern SS, Tan UK, Chang CW, Chen TW, Lin CH, Chang YY, Wang CC. Structure-activity and crystallographic analysis of benzophenone derivatives-the potential anticancer agents. Bioorg Med Chem Lett 2003; 13:101-5. [PMID: 12467626 DOI: 10.1016/s0960-894x(02)00850-8] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Compounds 1-5, structurally related to combretastatin A-4 showed excellent cytotoxic activities against a panel of human cancer cell lines including multi-drug resistant cell lines. The X-ray three-dimensional structural analysis shows that proton donor in B ring may be required for cytotoxic activity, with intermolecular hydrogen bonding playing an important role.
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Affiliation(s)
- Hsing-Pang Hsieh
- Division of Biotechnology and Pharmaceutical Research, National Health Research Institutes, 9F, 161, Sec. 6, Min-Chiuan East Road, Taipei 114, Taiwan, ROC.
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