51
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Li NG, Shi ZH, Tang YP, Yang JP, Wang ZJ, Song SL, Lu TL, Duan JA. Targeting the development of resveratrol as a chemopreventive agent. Drug Dev Res 2010. [DOI: 10.1002/ddr.20380] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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52
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Bertini S, Calderone V, Carboni I, Maffei R, Martelli A, Martinelli A, Minutolo F, Rajabi M, Testai L, Tuccinardi T, Ghidoni R, Macchia M. Synthesis of heterocycle-based analogs of resveratrol and their antitumor and vasorelaxing properties. Bioorg Med Chem 2010; 18:6715-24. [PMID: 20728369 DOI: 10.1016/j.bmc.2010.07.059] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2010] [Revised: 07/23/2010] [Accepted: 07/24/2010] [Indexed: 10/19/2022]
Abstract
New resveratrol (RES) analogs were developed by replacing the aromatic 'core' of our initial naphthalene-based RES analogs with pseudo-heterocyclic (salicylaldoxime) or heterocyclic (benzofuran, quinoline, and benzothiazole) scaffolds. The resulting analogs were tested for their antiproliferative and vasorelaxing effect, two typical properties shown by RES. Some of the new compounds confirmed strong antiproliferative activities, comparable to that previously found with the most active naphthalene-based analog. In particular, 3-(3,5-dihydroxyphenyl)-7-hydroxyquinoline exhibited the most potent antiproliferative effect (IC50=17.4 microM). In vascular assays, the highest levels of potency (pIC50=4.92) and efficacy (Emax=88.2%) were obtained with 2-(3,5-dihydroxyphenyl)-6-hydroxybenzothiazole. A conformational analysis of these compounds indicated that the antiproliferative activity on MDA-MB-231 cancer cells can be correlated to a common sterical profile of the most active compounds and, in particular, to the spatial arrangement of the three phenolic groups. Furthermore, the vasorelaxing properties showed a good correlation with the electronic properties measured through the electrostatic molecular potential (ESP).
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Affiliation(s)
- Simone Bertini
- Department of Pharmaceutical Sciences, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy
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53
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Zhang X, Xie W, Chen W. Palladium/Imidazolium salt as a versatile catalyst for sequential coupling reactions of aryl dihalides to unsymmetrically substituted arenes. Tetrahedron 2010. [DOI: 10.1016/j.tet.2009.12.043] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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54
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Chauhan J, Monteil AR, Patterson SE. Synthesis of novel benzo[b]furans and benzo[b]thiophenes: analogs of combretastatin and resveratrol. HETEROCYCL COMMUN 2010. [DOI: 10.1515/hc.2010.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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55
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Pizzirani D, Roberti M, Grimaudo S, Di Cristina A, Pipitone RM, Tolomeo M, Recanatini M. Identification of biphenyl-based hybrid molecules able to decrease the intracellular level of Bcl-2 protein in Bcl-2 overexpressing leukemia cells. J Med Chem 2009; 52:6936-40. [PMID: 19764793 DOI: 10.1021/jm900907s] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
With the aim of enhancing the structural complexity and diversity of an existing collection of bi- and terphenyl compounds, we synthesized hybrid molecules comprising of spirocyclic ketones (a complexity-bearing core) and bi/terphenyls (privileged fragments). Compounds 1, 3, 4, and 6 showed well-defined activity on apoptosis and differentiation, making them potential leads for development as new anticancer agents and chemical probes to study signaling networks in neoplastic cells.
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Affiliation(s)
- Daniela Pizzirani
- Department of Chemistry and Chemical Biology, Harvard University and the Broad Institute of MIT and Harvard, Cambridge, Massachusetts 02138, USA
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56
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57
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Ye LW, Wang SB, Wang QG, Sun XL, Tang Y, Zhou YG. Asymmetric tandem Michael addition-ylide olefination reaction for the synthesis of optically active cyclohexa-1,3-diene derivatives. Chem Commun (Camb) 2009:3092-4. [PMID: 19462097 DOI: 10.1039/b900048h] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction of a crotonate-derived chiral phosphonium salt with alpha,beta-unsaturated carbonyl compounds in the presence of Cs(2)CO(3) affords optically active cyclohexa-1,3-diene derivatives with up to 90% ee in good yields.
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Affiliation(s)
- Long-Wu Ye
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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58
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Beaumard F, Dauban P, Dodd RH. One-Pot Double Suzuki−Miyaura Couplings: Rapid Access to Nonsymmetrical Tri(hetero)aryl Derivatives. Org Lett 2009; 11:1801-4. [DOI: 10.1021/ol900358n] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Floriane Beaumard
- Institut de Chimie des Substances Naturelles, UPR 2301 CNRS, Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Philippe Dauban
- Institut de Chimie des Substances Naturelles, UPR 2301 CNRS, Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Robert H. Dodd
- Institut de Chimie des Substances Naturelles, UPR 2301 CNRS, Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
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59
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Inhibitory effects of 6-(3-hydroxyphenyl)-2-naphthol on tyrosinase activity and melanin synthesis. Arch Pharm Res 2009; 32:289-94. [DOI: 10.1007/s12272-009-1235-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2009] [Revised: 02/05/2009] [Accepted: 02/09/2009] [Indexed: 11/25/2022]
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60
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Spatafora C, Basini G, Baioni L, Grasselli F, Sofia A, Tringali C. Antiangiogenic Resveratrol Analogues by Mild m-CPBA Aromatic Hydroxylation of 3,5-Dimethoxystilbenes. Nat Prod Commun 2009. [DOI: 10.1177/1934578x0900400215] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A mild treatment of the resveratrol analogue 3,5,4′-trimethoxystilbene 2 with m-CPBA afforded two hydroxylated methoxystilbenes 5 and 6 by direct aromatic hydroxylation. A similar protocol was applied to other stilbenes bearing a 3,5-dimethoxy moiety, namely tetramethoxystilbenes 7 and 10 to obtain respectively the hydroxylated analogues 8, 9 and 11, 12. The substrate 2 and the new compounds 5, 8 and 11 were evaluated as anti-angiogenic agents and proved significantly active in the range 1 – 100 μM.
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Affiliation(s)
- Carmela Spatafora
- Dipartimento di Scienze Chimiche, Università di Catania, Viale A. Doria 6, I-95125 Catania, Italy
| | - Giuseppina Basini
- Dipartimento di Produzioni Animali, Biotecnologie Veterinarie, Qualità e Sicurezza degli Alimenti, Università di Parma, Via del Taglio 8, I-43100 Parma, Italy
| | - Laura Baioni
- Dipartimento di Produzioni Animali, Biotecnologie Veterinarie, Qualità e Sicurezza degli Alimenti, Università di Parma, Via del Taglio 8, I-43100 Parma, Italy
| | - Francesca Grasselli
- Dipartimento di Produzioni Animali, Biotecnologie Veterinarie, Qualità e Sicurezza degli Alimenti, Università di Parma, Via del Taglio 8, I-43100 Parma, Italy
| | - Alfio Sofia
- Dipartimento di Scienze Chimiche, Università di Catania, Viale A. Doria 6, I-95125 Catania, Italy
| | - Corrado Tringali
- Dipartimento di Scienze Chimiche, Università di Catania, Viale A. Doria 6, I-95125 Catania, Italy
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61
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Jeong SH, Jo WS, Song S, Suh H, Seol SY, Leem SH, Kwon TK, Yoo YH. A novel resveratrol derivative, HS1793, overcomes the resistance conferred by Bcl-2 in human leukemic U937 cells. Biochem Pharmacol 2009; 77:1337-47. [PMID: 19426672 DOI: 10.1016/j.bcp.2009.01.002] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2008] [Revised: 12/31/2008] [Accepted: 01/02/2009] [Indexed: 01/04/2023]
Abstract
The chemopreventive and chemotherapeutic properties associated with resveratrol offer promise for the design of new chemotherapeutic agents. However, resveratrol is not a potent cytotoxic compound when compared with other chemotherapeutic drugs. Thus, several studies were undertaken to obtain synthetic analogues of resveratrol with potent activity. The present study was undertaken to examine whether four resveratrol analogues (HS-1784, -1792, -1791 and -1793) that we had designed and synthesized show antitumor activity. Here, we observed that all of these resveratrol analogues displayed stronger antitumor effects than resveratrol in most cancer cells tested. We further examined whether HS-1793, showing potent antitumor effects in most cancer cells tested, overcomes the resistance conferred by Bcl-2, since overcoming the resistance conferred by Bcl-2 represents an attractive therapeutic strategy against cancer. Our viability assay showed that HS-1793 overcomes the resistance conferred by Bcl-2 in human leukemic U937 cells. Various apoptosis assessment assays demonstrated that HS-1793 overcomes the resistance conferred by Bcl-2 in human leukemic U937 cells by inducing apoptosis. Noticeably, we elucidated the marked downregulation of 14-3-3 protein by HS-1793, indicating that HS-1793 overcomes the resistance conferred by Bcl-2 in U937 cells via 14-3-3. We also observed that HS-1793 exerts its antitumor activity via Bad. However, overall data obtained from methylation specific PCR, RT-PCR and real-time PCR suggest that HS-1793 plays a role in the downregulation of 14-3-3 at a post-transcriptional level. Further understanding exactly how HS-1793 overcomes the resistance conferred by Bcl-2 via 14-3-3 may guide the development of future anticancer agents.
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Affiliation(s)
- Seung Hun Jeong
- Department of Anatomy and Cell Biology, Dong-A University College of Medicine and Medical Science Research Center, 3-1 Dongdaesin-dong, Seo-gu, Busan 602-714, South Korea
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62
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Zhang L, Liang F, Cheng X, Liu Q. A New Route to Multifunctionalized p-Terphenyls and Heteroaryl Analogues via [5C + 1C(N)] Annulation Strategy. J Org Chem 2008; 74:899-902. [DOI: 10.1021/jo802318p] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lei Zhang
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Fushun Liang
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Xin Cheng
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Qun Liu
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
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63
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Shahjahan Kabir M, Engelbrecht K, Polanowski R, Krueger SM, Ignasiak R, Rott M, Schwan WR, Stemper ME, Reed KD, Sherman D, Cook JM, Monte A. New classes of Gram-positive selective antibacterials: inhibitors of MRSA and surrogates of the causative agents of anthrax and tuberculosis. Bioorg Med Chem Lett 2008; 18:5745-9. [PMID: 18849164 PMCID: PMC7127099 DOI: 10.1016/j.bmcl.2008.09.085] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2008] [Revised: 09/19/2008] [Accepted: 09/22/2008] [Indexed: 11/02/2022]
Abstract
An antimicrobial phenolic stilbene, (E)-3-hydroxy-5-methoxystilbene, 1 was recently isolated from the leaves of Comptonia peregrina (L.) Coulter and shown to possess inhibitory activity against several Gram-positive bacteria, including isolates of methicillin-resistant Staphylococcus aureus (MRSA), Mycobacterium bovis BCG, and avirulent Bacillusanthracis (Sterne strain), among others. These results prompted the design and synthesis of two new classes of compounds, phenoxystyrenes and phenothiostyrenes, as analogs of the natural antimicrobial stilbene. These and additional stilbenoid analogs were synthesized using new, efficient, copper-mediated coupling strategies. Minimum inhibitory concentration (MIC) antimicrobial assays were performed on all compounds prepared. These preliminary structure-activity relationship studies indicated that both new classes of synthetic analogs, as well as the stilbenes, show promising activity against Gram-positive bacteria when at least one phenolic moiety is present, but not when absent. The potencies of the phenolic phenoxystyrenes and phenothiostyrenes were found to be comparable to those of the phenolic stilbenes tested.
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Affiliation(s)
- M Shahjahan Kabir
- Department of Chemistry and Biochemistry, University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA
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64
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Komina O, Wesierska-Gadek J. Action of resveratrol alone or in combination with roscovitine, a CDK inhibitor, on cell cycle progression in human HL-60 leukemia cells. Biochem Pharmacol 2008; 76:1554-62. [PMID: 18761329 DOI: 10.1016/j.bcp.2008.08.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2008] [Revised: 08/04/2008] [Accepted: 08/05/2008] [Indexed: 10/21/2022]
Abstract
Results of a number of epidemiological and experimental studies indicate that polyphenols (e.g. resveratrol (RES), epicatechins etc.), antioxidant agents and abundant micronutrients in our food could have strong anti-mitotic as well as pro-apoptotic effects. In this study we raised the question whether roscovitine (ROSC), an inhibitor of cyclin-dependent kinases (CDKs) with increased selectivity towards CDK2, could be able to affect human leukemia HL-60 cells in which the p53 gene is inactivated and whether ROSC-induced effects could be additionally modulated by compounds of natural origin, especially by polyphenols e.g. RES. Exposure of HL-60 cells to ROSC for 24 h inhibited their proliferation. Flow cytometric analyses revealed that unlike MCF-7 cells, HL-60 cells were arrested in G(1) upon ROSC treatment. Furthermore, ROSC also induced apoptosis in HL-60 cells. After treatment with 40 microM ROSC for 24 h the frequency of hypoploid cells representing cells undergoing apoptosis reached approximately 50%. In the next step the action of RES alone or in combination with ROSC was examined. Interestingly, synergistic effects were observed after combined treatment for 24 h and sequential post-incubation for 48 h in the presence of RES. Such combined treatment resulted in a marked reduction of the frequency of the S- and G(2)/M-phase cells and simultaneously increased the G(1) cell population up to 80% at a fourfold lower ROSC dose. Further analyses revealed that the combined treatment strongly activated caspase-3. These results clearly evidence that RES strongly potentiates ROSC-induced apoptosis.
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Affiliation(s)
- Oxana Komina
- Cell Cycle Regulation Group, Institute of Cancer Research, Department of Medicine I, Medical University of Vienna, Borschkegasse 8 a, A-1090 Vienna, Austria
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65
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Ye LW, Han X, Sun XL, Tang Y. Tandem Michael addition/ylide olefination reaction for the synthesis of highly functionalized cyclohexadiene derivatives. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.06.048] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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66
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Simoni D, Rondanin R, Baruchello R, Rizzi M, Grisolia G, Eleopra M, Grimaudo S, Cristina AD, Pipitone MR, Bongiorno MR, Aricò M, Invidiata FP, Tolomeo M. Novel Terphenyls and 3,5-Diaryl Isoxazole Derivatives Endowed with Growth Supporting and Antiapoptotic Properties. J Med Chem 2008; 51:4796-803. [DOI: 10.1021/jm800388m] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Daniele Simoni
- Dipartimento di Scienze Farmaceutiche, Università di Ferrara, via Fossato di Mortara 17/19, I-44100 Ferrara, Italy, Dipartimento Biomedico di Medicina Interna e Specialistica, Università di Palermo, Italy, Cattedra di Dermatologia. Università di Palermo, Dipartimento Farmacochimico Tossicologico e Biologico, Università di Palermo, Centro Interdipartimentale di Ricerca in Oncologia Clinica (C.I.R.O.C.) e Servizio AIDS, Palermo, Italy
| | - Riccardo Rondanin
- Dipartimento di Scienze Farmaceutiche, Università di Ferrara, via Fossato di Mortara 17/19, I-44100 Ferrara, Italy, Dipartimento Biomedico di Medicina Interna e Specialistica, Università di Palermo, Italy, Cattedra di Dermatologia. Università di Palermo, Dipartimento Farmacochimico Tossicologico e Biologico, Università di Palermo, Centro Interdipartimentale di Ricerca in Oncologia Clinica (C.I.R.O.C.) e Servizio AIDS, Palermo, Italy
| | - Riccardo Baruchello
- Dipartimento di Scienze Farmaceutiche, Università di Ferrara, via Fossato di Mortara 17/19, I-44100 Ferrara, Italy, Dipartimento Biomedico di Medicina Interna e Specialistica, Università di Palermo, Italy, Cattedra di Dermatologia. Università di Palermo, Dipartimento Farmacochimico Tossicologico e Biologico, Università di Palermo, Centro Interdipartimentale di Ricerca in Oncologia Clinica (C.I.R.O.C.) e Servizio AIDS, Palermo, Italy
| | - Michele Rizzi
- Dipartimento di Scienze Farmaceutiche, Università di Ferrara, via Fossato di Mortara 17/19, I-44100 Ferrara, Italy, Dipartimento Biomedico di Medicina Interna e Specialistica, Università di Palermo, Italy, Cattedra di Dermatologia. Università di Palermo, Dipartimento Farmacochimico Tossicologico e Biologico, Università di Palermo, Centro Interdipartimentale di Ricerca in Oncologia Clinica (C.I.R.O.C.) e Servizio AIDS, Palermo, Italy
| | - Giuseppina Grisolia
- Dipartimento di Scienze Farmaceutiche, Università di Ferrara, via Fossato di Mortara 17/19, I-44100 Ferrara, Italy, Dipartimento Biomedico di Medicina Interna e Specialistica, Università di Palermo, Italy, Cattedra di Dermatologia. Università di Palermo, Dipartimento Farmacochimico Tossicologico e Biologico, Università di Palermo, Centro Interdipartimentale di Ricerca in Oncologia Clinica (C.I.R.O.C.) e Servizio AIDS, Palermo, Italy
| | - Marco Eleopra
- Dipartimento di Scienze Farmaceutiche, Università di Ferrara, via Fossato di Mortara 17/19, I-44100 Ferrara, Italy, Dipartimento Biomedico di Medicina Interna e Specialistica, Università di Palermo, Italy, Cattedra di Dermatologia. Università di Palermo, Dipartimento Farmacochimico Tossicologico e Biologico, Università di Palermo, Centro Interdipartimentale di Ricerca in Oncologia Clinica (C.I.R.O.C.) e Servizio AIDS, Palermo, Italy
| | - Stefania Grimaudo
- Dipartimento di Scienze Farmaceutiche, Università di Ferrara, via Fossato di Mortara 17/19, I-44100 Ferrara, Italy, Dipartimento Biomedico di Medicina Interna e Specialistica, Università di Palermo, Italy, Cattedra di Dermatologia. Università di Palermo, Dipartimento Farmacochimico Tossicologico e Biologico, Università di Palermo, Centro Interdipartimentale di Ricerca in Oncologia Clinica (C.I.R.O.C.) e Servizio AIDS, Palermo, Italy
| | - Antonietta Di Cristina
- Dipartimento di Scienze Farmaceutiche, Università di Ferrara, via Fossato di Mortara 17/19, I-44100 Ferrara, Italy, Dipartimento Biomedico di Medicina Interna e Specialistica, Università di Palermo, Italy, Cattedra di Dermatologia. Università di Palermo, Dipartimento Farmacochimico Tossicologico e Biologico, Università di Palermo, Centro Interdipartimentale di Ricerca in Oncologia Clinica (C.I.R.O.C.) e Servizio AIDS, Palermo, Italy
| | - Maria Rosaria Pipitone
- Dipartimento di Scienze Farmaceutiche, Università di Ferrara, via Fossato di Mortara 17/19, I-44100 Ferrara, Italy, Dipartimento Biomedico di Medicina Interna e Specialistica, Università di Palermo, Italy, Cattedra di Dermatologia. Università di Palermo, Dipartimento Farmacochimico Tossicologico e Biologico, Università di Palermo, Centro Interdipartimentale di Ricerca in Oncologia Clinica (C.I.R.O.C.) e Servizio AIDS, Palermo, Italy
| | - Maria Rita Bongiorno
- Dipartimento di Scienze Farmaceutiche, Università di Ferrara, via Fossato di Mortara 17/19, I-44100 Ferrara, Italy, Dipartimento Biomedico di Medicina Interna e Specialistica, Università di Palermo, Italy, Cattedra di Dermatologia. Università di Palermo, Dipartimento Farmacochimico Tossicologico e Biologico, Università di Palermo, Centro Interdipartimentale di Ricerca in Oncologia Clinica (C.I.R.O.C.) e Servizio AIDS, Palermo, Italy
| | - Mario Aricò
- Dipartimento di Scienze Farmaceutiche, Università di Ferrara, via Fossato di Mortara 17/19, I-44100 Ferrara, Italy, Dipartimento Biomedico di Medicina Interna e Specialistica, Università di Palermo, Italy, Cattedra di Dermatologia. Università di Palermo, Dipartimento Farmacochimico Tossicologico e Biologico, Università di Palermo, Centro Interdipartimentale di Ricerca in Oncologia Clinica (C.I.R.O.C.) e Servizio AIDS, Palermo, Italy
| | - Francesco Paolo Invidiata
- Dipartimento di Scienze Farmaceutiche, Università di Ferrara, via Fossato di Mortara 17/19, I-44100 Ferrara, Italy, Dipartimento Biomedico di Medicina Interna e Specialistica, Università di Palermo, Italy, Cattedra di Dermatologia. Università di Palermo, Dipartimento Farmacochimico Tossicologico e Biologico, Università di Palermo, Centro Interdipartimentale di Ricerca in Oncologia Clinica (C.I.R.O.C.) e Servizio AIDS, Palermo, Italy
| | - Manlio Tolomeo
- Dipartimento di Scienze Farmaceutiche, Università di Ferrara, via Fossato di Mortara 17/19, I-44100 Ferrara, Italy, Dipartimento Biomedico di Medicina Interna e Specialistica, Università di Palermo, Italy, Cattedra di Dermatologia. Università di Palermo, Dipartimento Farmacochimico Tossicologico e Biologico, Università di Palermo, Centro Interdipartimentale di Ricerca in Oncologia Clinica (C.I.R.O.C.) e Servizio AIDS, Palermo, Italy
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67
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Pizzirani D, Roberti M, Cavalli A, Grimaudo S, Di Cristina A, Pipitone R, Gebbia N, Tolomeo M, Recanatini M. Antiproliferative Agents That Interfere with the Cell Cycle at the G1→S Transition: Further Development and Characterization of a Small Library of Stilbene-Derived Compounds. ChemMedChem 2008; 3:345-55. [DOI: 10.1002/cmdc.200700258] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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68
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Pizzirani D, Roberti M, Recanatini M. Domino Knoevenagel/Diels–Alder sequence coupled to Suzuki reaction: a valuable synthetic platform for chemical biology. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.07.214] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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69
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Garo E, Hu JF, Goering M, Hough G, O'Neil-Johnson M, Eldridge G. Stilbenes from the Orchid Phragmipedium sp. JOURNAL OF NATURAL PRODUCTS 2007; 70:968-73. [PMID: 17536858 DOI: 10.1021/np070014j] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Three species of Phragmipedium (Orchidaceae), P. calurum, P. longifolium, and P. hybrid (var. Sorcerer's Apprentice), were analyzed by high-throughput isolation. A total of 12 new (1-4, 6-10, 12, 14, 16) and five known compounds (5, 11, 13, 15, 17) were isolated from these orchids. Compounds 1-8 are stilbenes substituted with one or two 4-hydroxybenzyl moieties. This type of substitution on stilbenes is unusual and has been reported only twice. The structure elucidation was based on spectroscopic analysis.
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Affiliation(s)
- Eliane Garo
- Lead Discovery and Rapid Structure Elucidation Group, Sequoia Sciences Inc., 1912 Innerbelt Business Center Drive, Saint Louis, Missouri 63114, USA.
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70
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Zhang W, Go ML. Quinone reductase induction activity of methoxylated analogues of resveratrol. Eur J Med Chem 2007; 42:841-50. [PMID: 17316918 DOI: 10.1016/j.ejmech.2006.12.012] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2006] [Revised: 11/28/2006] [Accepted: 12/12/2006] [Indexed: 12/27/2022]
Abstract
Agents that induce the activity of phase II enzymes play an important role in intervening with the carcinogenic process at the initiation stage. Resveratrol is well known for its chemopreventive activity against major stages of carcinogenesis. In this study, several methoxylated analogues of resveratrol were synthesized and evaluated for their ability to induce the activity of the phase II enzyme quinone reductase (QR). Methoxy groups serve to increase lipophilicity and improve metabolic stability. Compared to resveratrol, analogues with ortho-methoxy substituents were found to be more potent inducers of QR and to exert their activity in a qualitatively different manner. The greater induction activities associated with these stilbenoids serve as a useful starting point for the design of improved chemopreventive agents.
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Affiliation(s)
- W Zhang
- Department of Pharmacy, National University of Singapore, 18 Science Drive 4, Singapore 117543, Singapore
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71
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Song S, Lee H, Jin Y, Ha YM, Bae S, Chung HY, Suh H. Syntheses of hydroxy substituted 2-phenyl-naphthalenes as inhibitors of tyrosinase. Bioorg Med Chem Lett 2007; 17:461-4. [PMID: 17064896 DOI: 10.1016/j.bmcl.2006.10.025] [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] [Received: 07/25/2006] [Revised: 10/02/2006] [Accepted: 10/10/2006] [Indexed: 11/16/2022]
Abstract
Oxyresveratrol and resveratrol, with hydroxy substituted trans-stilbene structure, exert potent inhibitory effects on cyclooxygenase, rat liver mitochondrial ATPase activity, and tyrosinase. As the isosteres of oxyresveratrol, a new family of hydroxyl substituted phenyl-naphthalenes were synthesized to show excellent inhibition of mushroom tyrosinase. Compound 10, which is isostere of resveratrol, showed IC50 value of 16.52 microM in mushroom tyrosinase activity. As compared to this, the reference compound, resveratrol, showed IC50 value of 55.61 microM. Compound 4, which is isostere of oxyresveratrol, showed IC50 value of 0.49 microM. Among the other three derivatives, compound 13 showed IC50 value of 0.034 microM.
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Affiliation(s)
- Suhee Song
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 609-735, Republic of Korea
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Singh C, Chaudhary S, Puri SK. New Orally Active Derivatives of Artemisinin with High Efficacy against Multidrug-Resistant Malaria in Mice. J Med Chem 2006; 49:7227-33. [PMID: 17125275 DOI: 10.1021/jm060826x] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A new series of ether derivatives of dihydroartemisinin have been prepared and evaluated for their antimalarial activity against multidrug-resistant Plasmodium yoelii nigeriensis in mice by oral route. These new derivatives 7-17 are highly lipophilic (log P in the range of 5.51 to 7.19) as compared with beta-arteether (log P 3.84), and several of them are two- to four-fold more active than beta-arteether. Among the ether derivatives, alpha-isomers are more active than the beta-isomers. The ether derivatives 12alpha and 14alpha, the most active compounds of the series, provided 100% protection to infected mice at 12 mg/kgx4 days. In this model beta-arteether provides 100% and 20% protection at 48 mg/kgx4 days and 24 mg/kgx4 days, respectively.
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Affiliation(s)
- Chandan Singh
- Division of Medicinal & Process Chemistry, Central Drug Research Institute, Lucknow-226001, India.
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