101
|
Ryczak J, Papini M, Lader A, Nasereddin A, Kopelyanskiy D, Preu L, Jaffe CL, Kunick C. 2-Arylpaullones are selective antitrypanosomal agents. Eur J Med Chem 2013; 64:396-400. [PMID: 23648975 DOI: 10.1016/j.ejmech.2013.03.065] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Revised: 03/27/2013] [Accepted: 03/28/2013] [Indexed: 01/08/2023]
Abstract
Antileishmanial paullone-chalcone hybrid molecules display antiparasitic activity against Trypanosoma brucei rhodesiense blood stream forms, albeit with low selectivity against human THP-1 cells. In order to develop less toxic analogues, paullones with acrylamide or aryl substituents in 2-position were synthesized, of which the latter exhibited potent antiparasitic activity with excellent selectivity profiles. The most potent compound identified in this study was 9-tert-butyl-2-(4-morpholinophenyl)paullone (3i) which inhibited the parasites at submicromolar concentrations (GI50 = 510 nM) with a selectivity index of 157.
Collapse
Affiliation(s)
- Jasmin Ryczak
- Technische Universität Braunschweig, Institut für Medizinische und Pharmazeutische Chemie, Beethovenstraße 55, D-38106 Braunschweig, Germany
| | | | | | | | | | | | | | | |
Collapse
|
102
|
Rocha MN, Corrêa CM, Melo MN, Beverley SM, Martins-Filho OA, Madureira AP, Soares RP. An alternative in vitro drug screening test using Leishmania amazonensis transfected with red fluorescent protein. Diagn Microbiol Infect Dis 2013; 75:282-91. [PMID: 23312610 PMCID: PMC3733281 DOI: 10.1016/j.diagmicrobio.2012.11.018] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2012] [Revised: 10/25/2012] [Accepted: 11/16/2012] [Indexed: 11/30/2022]
Abstract
Fluorescent and colorimetric reporter genes are valuable tools for drug screening models, since microscopy is labor intensive and subject to observer variation. In this work, we propose a fluorimetric method for drug screening using red fluorescent parasites. Fluorescent Leishmania amazonensis were developed after transfection with integration plasmids containing either red (RFP) or green fluorescent protein (GFP) genes. After transfection, wild-type (LaWT) and transfected (LaGFP and LaRFP) parasites were subjected to flow cytometry, macrophage infection, and tests of susceptibility to current antileishmanial agents and propranolol derivatives previously shown to be active against Trypanosoma cruzi. Flow cytometry analysis discriminated LaWT from LaRFP and LaGFP parasites, without affecting cell size or granulosity. With microscopy, transfection with antibiotic resistant genes was not shown to affect macrophage infectivity and susceptibility to amphotericin B and propranolol derivatives. Retention of fluorescence remained in the intracellular amastigotes in both LaGFP and LaRFP transfectants. However, detection of intracellular RFP parasites was only achieved in the fluorimeter. Murine BALB/c macrophages were infected with LaRFP parasites, exposed to standard (meglumine antimoniate, amphotericin B, Miltefosine, and allopurinol) and tested molecules. Although it was possible to determine IC(50) values for 4 propranolol derivatives (1, 2b, 3, and 4b), all compounds were considered inactive. This study is the first to develop a fluorimetric drug screening test for L. amazonensis RFP. The fluorimetric test was comparable to microscopy with the advantage of being faster and not requiring manual counting.
Collapse
Affiliation(s)
- Marcele N. Rocha
- Centro de Pesquisas René Rachou, Fundação Oswaldo Cruz/FIOCRUZ, 30190-002 Belo Horizonte, MG, Brazil
| | - Célia M. Corrêa
- Laboratório de Química Farmacêutica, DEFAR, Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Maria N. Melo
- Departamento de Parasitologia, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Stephen M. Beverley
- Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO, USA
| | | | - Ana Paula Madureira
- Departamento de Engenharia de Biossistemas (DEPEB), Universidade Federal de São João Del Rey, São João Del Rey, Minas Gerais, Brazil
| | - Rodrigo P. Soares
- Centro de Pesquisas René Rachou, Fundação Oswaldo Cruz/FIOCRUZ, 30190-002 Belo Horizonte, MG, Brazil
| |
Collapse
|
103
|
Eddarir S, Kajjout M, Rolando C. An efficient synthesis of (Z)-α-fluorochalcones via the palladium-catalyzed cross-coupling reaction of (Z)-α-fluorocinnamoyl chloride with boronic acids. Tetrahedron 2013. [DOI: 10.1016/j.tet.2012.12.025] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
104
|
Abstract
The compounds (+)-(7S,8R)-epoxy-5,6-didehydrokavain (1), flavokavain B (2),β-sitosterol (3), and stigmasterol (4) are reported here as chemical constituents ofPiper dilatatumRich. (Piperaceae). Their structures were determined on the basis of their spectroscopic data (1H and13C NMR, MS, and IR). The antifungal activities of pyrone1(1 μg) and chalcone2(100 μg) were determined by means of direct bioautography againstCladosporium cladosporioidesandC. sphaerospermum. Results indicateP. dilatatumas a candidate for the development of novel antifungal phytotherapic products as well as point out pyrone1as a promising hit compound in the quest for novel antifungal agents.
Collapse
|
105
|
Tyagi V, Khan S, Shivahare R, Srivastava K, Gupta S, Kidwai S, Srivastava K, Puri S, Chauhan PM. A natural product inspired hybrid approach towards the synthesis of novel pentamidine based scaffolds as potential anti-parasitic agents. Bioorg Med Chem Lett 2013. [DOI: 10.1016/j.bmcl.2012.10.101] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
106
|
Development of a stability-indicating LC method for determination of a synthetic chalcone derivative in a nanoemulsion dosage form and identification of the main photodegradation product by LC–MS. J Pharm Biomed Anal 2012; 70:652-6. [DOI: 10.1016/j.jpba.2012.07.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2012] [Revised: 07/18/2012] [Accepted: 07/19/2012] [Indexed: 11/17/2022]
|
107
|
Chen J, Ma L, Zhang R, Tang J, Lai H, Wang J, Wang G, Xu Q, Chen T, Peng F, Qiu J, Liang X, Cao D, Ran Y, Peng A, Wei Y, Chen L. Semi-Synthesis and Biological Evaluation of 1,2,3-Triazole-Based Podophyllotoxin Congeners as Potent Antitumor Agents Inducing Apoptosis in HepG2 Cells. Arch Pharm (Weinheim) 2012; 345:945-56. [DOI: 10.1002/ardp.201100438] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2011] [Revised: 07/13/2012] [Accepted: 07/19/2012] [Indexed: 11/05/2022]
|
108
|
Regioselective monobromination of (E)-1-(2′-hydroxy-4′,6′-dimethoxyphenyl)-3-aryl-2-propen-1-ones using bromodimethylsulfonium bromide and synthesis of 8-bromoflavones and 7-bromoaurones. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.06.122] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
109
|
Gonçalves CJ, Lenoir AS, Padaratz P, Corrêa R, Niero R, Cechinel-Filho V, Campos Buzzi FD. Benzofuranones as potential antinociceptive agents: structure-activity relationships. Eur J Med Chem 2012; 56:120-6. [PMID: 22960698 DOI: 10.1016/j.ejmech.2012.08.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2012] [Revised: 08/08/2012] [Accepted: 08/09/2012] [Indexed: 10/28/2022]
Abstract
This work evaluates the antinociceptive properties of benzofuranones using chemically induced models of pain and the hot plate test. All the compounds exhibited significant antinociceptive activity, with 3-[2-(4-chlorophenyl)-2-oxoetil]-2-benzofuran-1(3H)-one (3d) being the most active. According to the application of the Topliss method, the 2π-π(2) parameter was the preponderant one, indicating that the hydrophobicity (π) seems to be more involved in the antinociceptive activity. Based on the table of other possible substituents proposed by Topliss, three derived from compound 3d were tested. 3-[2-(3-methoxyphenyl)-2-oxoetil]-2-benzofuran-1(3H)-one (3g) showed greater antinociceptive activity with better pharmacokinetic properties predicted. These results show the efficiency of the Topliss Method as a research tool for the discovery of potential candidate molecules for a new antinociceptive drug.
Collapse
Affiliation(s)
- Cleiton José Gonçalves
- Núcleo de Investigações Químico-Farmacêuticas (NIQFAR)/CCS, Universidade do Vale do Itajaí-UNIVALI, Caixa Postal 360, CEP 88.302-202 Itajaí, Santa Catarina, Brazil
| | | | | | | | | | | | | |
Collapse
|
110
|
Morita-Baylis-Hillman adduct shows in vitro activity against Leishmania (Viannia) braziliensis associated with a reduction in IL-6 and IL-10 but independent of nitric oxide. Parasitology 2012; 140:29-38. [DOI: 10.1017/s0031182012001291] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
SUMMARYCurrent treatments for different clinical forms of leishmaniasis are unsatisfactory, highly toxic and associated with increasing failure rates resulting from the emergence of resistant parasites. Leishmania (Viannia) braziliensis is the main aetiological agent of different clinical forms of American tegumentary leishmaniasis, including the mucosal form for which treatment has high failure rates. The aim of this work was to investigate the activity of the Morita-Baylis-Hillman adduct, methyl 2-{2-[hydroxy(2-nitrophenyl)methyl])acryloyloxy} benzoate in vitro against isolates of L. (V.) braziliensis obtained from patients with different clinical manifestations of tegumentary leishmaniasis: localized cutaneous leishmaniasis, mucosal leishmaniasis and disseminated cutaneous leishmaniasis. The adduct effectively inhibited the growth of promastigotes of the different isolates of L. (V.) braziliensis (IC50 ⩽ 7·77 μg/ml), as well as reduced the infection rate of macrophages infected with these parasites (EC50 ⩽ 1·37 μg/ml). It is remarkable to state that the adduct was more effective against intracellular amastigotes (P ⩽ 0·0045). The anti-amastigote activity correlated with an immunomodulatory effect, since the adduct was able to decrease the production of IL-6 and IL-10 by the infected macrophages. However, its effect was independent of nitric oxide production. This work demonstrates the anti-leishmanial activity of methyl 2-{2-[hydroxy(2-nitrophenyl)methyl])acryloyloxy} benzoate and suggests its potential in the treatment of human infections caused by L. (V.) braziliensis.
Collapse
|
111
|
Syntheses and biological activity of chalcones-imidazole derivatives. RESEARCH ON CHEMICAL INTERMEDIATES 2012. [DOI: 10.1007/s11164-012-0665-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
112
|
Johnson TE, Hermanson D, Wang L, Kassie F, Upadhyaya P, O'Sullivan MG, Hecht SS, Lu J, Xing C. Lung Tumorigenesis Suppressing Effects of a Commercial Kava Extract and Its Selected Compounds in A/J Mice. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2012; 39:727-42. [DOI: 10.1142/s0192415x11009202] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Lung cancer is the most deadly malignancy in the US. Chemoprevention is potentially a complementary approach to smoking cessation for lung cancer control. Recently, we reported that a commercially available form of kava extract significantly inhibits 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK) and benzo(a)pyrene (BaP)-induced lung tumorigenesis in A/J mice at a dose of 10 mg per gram diet. In the present study, we examined the dose-dependent lung tumor inhibitory activities of kava and investigated potential active constituent(s). Mice treated with carcinogen alone contained 12.1±5.8 lung adenomas per mouse 22 weeks after final carcinogen administration. Mice that were fed diets containing kava at dosages of 1.25, 2.5, 5, and 10 mg/g of diet had 8.4±3.5, 6.6±3.5, 4.3±2.4, and 3.8±2.3 lung adenomas per mouse, respectively. This corresponds to a reduction of 31%, 46%, 65% and 69% in tumor multiplicity, which were all statistically significant (p < 0.05). Analyses of lung adenoma tissues derived from kava-treated animals revealed that kava significantly inhibited adenoma cell proliferation while it had no detectable effect on cell death, indicating that kava primarily suppressed lung tumorigenesis in A/J mice via inhibition of cell proliferation. Flavokawains A, B, and C, three chalcone-based components from kava, demonstrated greatly reduced chemopreventive efficacies even at concentrations much higher than their natural abundance, suggesting that they alone were unlikely to be responsible for kava's chemopreventive activity. Kava at all dosages and treatment regimens did not induce detectable adverse effects, particularly with respect to liver. Specifically, kava treatment showed no effect on liver integrity indicator enzymes or liver weight, indicating that kava may be potentially safe for long-term chemopreventive application.
Collapse
Affiliation(s)
- Thomas E. Johnson
- Department of Medicinal Chemistry, University of Minnesota, Minneapolis, MN 55455, USA
| | - David Hermanson
- Department of Medicinal Chemistry, University of Minnesota, Minneapolis, MN 55455, USA
| | - Lei Wang
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA
| | - Fekadu Kassie
- University of Minnesota Cancer Center, Minneapolis, MN 55455, USA
- Oncology and Comparative Medicine, University of Minnesota, St. Paul, MN 55108, USA
| | - Pramod Upadhyaya
- University of Minnesota Cancer Center, Minneapolis, MN 55455, USA
| | - Michael G. O'Sullivan
- University of Minnesota Cancer Center, Minneapolis, MN 55455, USA
- Department of Veterinary Population Medicine, University of Minnesota, St. Paul, MN 55108, USA
| | - Stephen S. Hecht
- University of Minnesota Cancer Center, Minneapolis, MN 55455, USA
| | - Junxuan Lu
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA
- University of Minnesota Cancer Center, Minneapolis, MN 55455, USA
| | - Chengguo Xing
- Department of Medicinal Chemistry, University of Minnesota, Minneapolis, MN 55455, USA
- University of Minnesota Cancer Center, Minneapolis, MN 55455, USA
| |
Collapse
|
113
|
Luo Y, Song R, Li Y, Zhang S, Liu ZJ, Fu J, Zhu HL. Design, synthesis, and biological evaluation of chalcone oxime derivatives as potential immunosuppressive agents. Bioorg Med Chem Lett 2012; 22:3039-43. [PMID: 22494616 DOI: 10.1016/j.bmcl.2012.03.080] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2012] [Revised: 03/14/2012] [Accepted: 03/22/2012] [Indexed: 01/10/2023]
Abstract
A series of deoxybenzoin oximes were recently reported as potent immunosuppressive agents by our group. In order to continue the original research for potential immunosuppressive agents with high efficacy and low toxicity, we synthesized a series of new chalcone oximes and evaluated them for their cytotoxicities and immunosuppressive activities. Among the synthesized compounds, chalcone oximes 25 and 27 exhibited lower cytotoxicities and higher inhibitory activities on anti-CD3/anti-CD28 co-stimulated lymph node cells than other compounds. Specially, compound 27 displayed 200-fold lower cytotoxicity (CC(50)=2174.39 μM) than cyclosporin A (CC(50)=10.10 μM) and showed SI value (SI=176.69) close to cyclosporin A (SI=154.13). Besides, the preliminary mechanism of inhibition effect of compounds 25 and 27 was also detected by flow cytometry, and the compounds exerted immunosuppressive activities via inducing the apoptosis of activated lymph node cells in a dose dependent manner. Also, the deep mechanism of apoptosis was detected by Western blot analysis.
Collapse
Affiliation(s)
- Yin Luo
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, People's Republic of China
| | | | | | | | | | | | | |
Collapse
|
114
|
Tang J, Chen JY, Jiang LQ. (E)-3-(4-Chloro-phen-yl)-1-(5-hy-droxy-2,2-dimethyl-2H-chromen-6-yl)prop-2-en-1-one. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o278. [PMID: 22346920 PMCID: PMC3274975 DOI: 10.1107/s1600536811055255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2011] [Accepted: 12/22/2011] [Indexed: 11/10/2022]
Abstract
There are two independent mol-ecules in the asymmetric unit of the title compound, C(20)H(17)ClO(3), each having an E configuration about the -C=C- bond. The dihedral angles between the two benzene rings in the two mol-ecules are 7.17 (11) and 9.82 (11)°. In both mol-ecules, the hy-droxy group is involved in an intra-molecular O-H⋯O hydrogen bond.
Collapse
|
115
|
Synthesis, anti-inflammatory activity and ulcerogenic liability of novel nitric oxide donating/chalcone hybrids. Bioorg Med Chem 2012; 20:195-206. [DOI: 10.1016/j.bmc.2011.11.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2011] [Revised: 11/01/2011] [Accepted: 11/07/2011] [Indexed: 11/23/2022]
|
116
|
Costa SDS, de Assis Golim M, Rossi-Bergmann B, Costa FTM, Giorgio S. Use of in vivo and in vitro systems to select Leishmania amazonensis expressing green fluorescent protein. THE KOREAN JOURNAL OF PARASITOLOGY 2011; 49:357-64. [PMID: 22355202 PMCID: PMC3279673 DOI: 10.3347/kjp.2011.49.4.357] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2011] [Revised: 08/09/2011] [Accepted: 08/24/2011] [Indexed: 11/23/2022]
Abstract
Various Leishmania species were engineered with green fluorescent protein (GFP) using episomal vectors that encoded an antibiotic resistance gene, such as aminoglycoside geneticin sulphate (G418). Most reports of GFP-Leishmania have used the flagellated extracellular promastigote, the stage of parasite detected in the midgut of the sandfly vector; fewer studies have been performed with amastigotes, the stage of parasite detected in mammals. In this study, comparisons were made regarding the efficiency for in vitro G418 selection of GFP-Leishmania amazonensis promastigotes and amastigotes and the use of in vivo G418 selection. The GFP-promastigotes retained episomal plasmid for a prolonged period and G418 treatment was necessary and efficient for in vitro selection. In contrast, GFP-amastigotes showed low retention of the episomal plasmid in the absence of G418 selection and low sensitivity to antibiotics in vitro. The use of protocols for G418 selection using infected BALB/c mice also indicated low sensitivity to antibiotics against amastigotes in cutaneous lesions.
Collapse
Affiliation(s)
- Solange dos Santos Costa
- Department of Animal Biology, Biology Institute, Universidade Estadual de Campinas Caixa Postal 6109, Cep 13.083-970 Campinas, São Paulo, Brazil
| | | | | | | | | |
Collapse
|
117
|
Rizvi SUF, Siddiqui HL, Johns M, Detorio M, Schinazi RF. Anti-HIV-1 and cytotoxicity studies of piperidyl-thienyl chalcones and their 2-pyrazoline derivatives. Med Chem Res 2011. [DOI: 10.1007/s00044-011-9912-x] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
|
118
|
Banday AH, Iqbal Zargar M, Ganaie BA. Synthesis and antimicrobial studies of chalconyl pregnenolones. Steroids 2011; 76:1358-62. [PMID: 21771607 DOI: 10.1016/j.steroids.2011.07.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2011] [Revised: 06/29/2011] [Accepted: 07/02/2011] [Indexed: 10/18/2022]
Abstract
An efficient and facile synthesis of 17-chalconyl derivatives of pregnenolone and their evaluation as antimicrobial agents against various microbial strains is reported. The scheme involves the transformation of the starting pregnenolone acetate into pregnenolone, conversion of pregnenolone to the corresponding chalcone derivatives. The compounds 3a-3j showed significant antimicrobial activity against all microbial strains used for testing.
Collapse
Affiliation(s)
- Abid H Banday
- Department of Chemistry, Islamia College of Science and Commerce, Srinagar, 190009 J&K, India.
| | | | | |
Collapse
|
119
|
Li L, Zhao XT, Luo YP, Zhao JF, Yang XD, Zhang HB. Novel cytotoxic chalcones from Litsea rubescens and Litsea pedunculata. Bioorg Med Chem Lett 2011; 21:7431-3. [PMID: 22047698 DOI: 10.1016/j.bmcl.2011.10.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2011] [Revised: 09/16/2011] [Accepted: 10/04/2011] [Indexed: 11/19/2022]
Abstract
Two novel flavonoids with chalcone skeleton, together with seven known flavonoids, were isolated from the stem barks of Litsea rubescens and Litsea pedunculata. The structures of the new compounds were elucidated on the basis of spectral methods including IR, UV, 1D and 2D NMR. The new chalcones were found to contain the rare epoxy or ethylidenedioxy group. This is the first report on the presence of chalcone in the plant genus Litsea. The cytotoxic potential of two new chalcones was evaluated in vitro against three human tumor cell lines. Both new chalcones displayed potent cytotoxic activities against myeloid leukaemia (HL-60) and epidermoid carcinoma (A431) cell lines and more active than cisplatin (DDP). Interestingly, compound 1 exhibited cytotoxic activity against HL-60 with IC(50) value 2.1-fold more sensitive to DDP.
Collapse
Affiliation(s)
- Liang Li
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, PR China
| | | | | | | | | | | |
Collapse
|
120
|
Fun HK, Suwunwong T, Chanawanno K, Wisitsak P, Chantrapromma S. (E)-1-(2-Hy-droxy-phen-yl)-3-(2,4,5-trimeth-oxy-phen-yl)prop-2-en-1-one. Acta Crystallogr Sect E Struct Rep Online 2011; 67:o2287-8. [PMID: 22058930 PMCID: PMC3200911 DOI: 10.1107/s1600536811031382] [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: 07/26/2011] [Accepted: 08/03/2011] [Indexed: 11/25/2022]
Abstract
In the title chalcone derivative, C18H18O5, the dihedral angle between the hydroxy-substituted benzene ring and the trimethoxy-substituted benzene ring is 16.3 (1)°. The three methoxy groups are essentially coplanar with the benzene ring to which they are attached, with an r.m.s. deviation of 0.0208 Å. An intramolecular O—H⋯O hydrogen bond generates an S(6) ring motif. In the crystal, weak C—H⋯O interactions link molecules into helical chains along the b axis. These chains are connected into sheets parallel to the bc plane by further weak C—H⋯O interactions.
Collapse
|
121
|
Budhiraja A, Kadian K, Kaur M, Aggarwal V, Garg A, Sapra S, Nepali K, Suri OP, Dhar KL. Synthesis and biological evaluation of naphthalene, furan and pyrrole based chalcones as cytotoxic and antimicrobial agents. Med Chem Res 2011. [DOI: 10.1007/s00044-011-9733-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
122
|
Lam KW, Uddin R, Liew CY, Tham CL, Israf DA, Syahida A, Rahman MBA, Ul-Haq Z, Lajis NH. Synthesis and QSAR analysis of chalcone derivatives as nitric oxide inhibitory agent. Med Chem Res 2011. [DOI: 10.1007/s00044-011-9706-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
123
|
Katsori AM, Hadjipavlou-Litina D. Recent progress in therapeutic applications of chalcones. Expert Opin Ther Pat 2011; 21:1575-96. [PMID: 21711087 DOI: 10.1517/13543776.2011.596529] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
INTRODUCTION Chalcones are a group of plant-derived polyphenolic compounds belonging to the flavonoids family that possess a wide variety of cytoprotective and modulatory functions, which may have therapeutic potential for multiple diseases. Their physicochemical properties seem to define the extent of their biological activity. AREAS COVERED A comprehensive synopsis of recent patent literature (2005 - 2011) describing chalcones and their derivatives on selected activities (e.g., anti-inflammatory, antimitotic, cytotoxic, antioxidant, anti-infection) is provided in this paper. Synthesis, combinatorial techniques, biological evaluation in vitro/in vivo, and new biological assays are discussed. In addition to selected biological data, a wide range of pharmaceutical applications and pharmaceutical compositions are also summarized. EXPERT OPINION Several natural and synthetic chalcones and their derivatives appear as promising anti-inflammatory and anticancer activities. Their clinical evaluation will be critical to assess their therapeutic utility. Those for which the mechanism of action is well defined can serve as lead compounds for the design of new, more promising molecules.
Collapse
Affiliation(s)
- Anna-Maria Katsori
- Aristotle University of Thessaloniki, School of Pharmacy, Department of Pharmaceutical Chemistry, Thessaloniki 54124, Greece
| | | |
Collapse
|
124
|
Design, synthesis and biological evaluation of some novel 3-cinnamoyl-4-hydroxy-2H-chromen-2-ones as antimalarial agents. Med Chem Res 2011. [DOI: 10.1007/s00044-011-9694-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
125
|
Bello ML, Chiaradia LD, Dias LRS, Pacheco LK, Stumpf TR, Mascarello A, Steindel M, Yunes RA, Castro HC, Nunes RJ, Rodrigues CR. Trimethoxy-chalcone derivatives inhibit growth of Leishmania braziliensis: synthesis, biological evaluation, molecular modeling and structure-activity relationship (SAR). Bioorg Med Chem 2011; 19:5046-52. [PMID: 21757358 DOI: 10.1016/j.bmc.2011.06.023] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2011] [Revised: 06/03/2011] [Accepted: 06/08/2011] [Indexed: 01/08/2023]
Abstract
In this work we described the synthesis, the antileishmanial activity and the molecular modeling and structure-activity relationship (SAR) evaluations of a series of chalcone derivatives. Among these compounds, the methoxychalcones 2h, 2i, 2j, 2k and 2l showed significant antileishmanial activity (IC(50)<10 μM). Interestingly 2i (IC(50)=2.7 μM), 2j (IC(50)=3.9 μM) and 2k (IC(50)=4.6 μM) derivatives presented better antileishmanial activity than the control drug pentamidine (IC(50)=6.0 μM). Our SAR study showed the importance of methoxy di-ortho substitution at phenyl ring A and the relationship between the frontier orbital HOMO coefficients distribution of these molecules and their activity. The most active compounds 2h, 2i, 2j, 2k, and 2l fulfilled the Lipinski rule-of-five which theoretically is important for good drug absorption and permeation through biological membranes. The potential profile of 2j (IC(50)=3.9 μM and CC(50)=216 μM) pointed this chalcone derivative as a hit compound to be further explored in antileishmanial drug design.
Collapse
Affiliation(s)
- Murilo Lamim Bello
- Laboratório de Modelagem Molecular e QSAR (ModMolQSAR-3D), Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
126
|
Sumathi S, Tharmaraj P, Sheela C, Ebenezer R. Synthesis, spectral, bioactivity, and NLO properties of chalcone metal complexes. J COORD CHEM 2011. [DOI: 10.1080/00958972.2011.580844] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- S. Sumathi
- a Department of Chemistry , Thiagarajar College , Madurai-625 009 , India
| | - P. Tharmaraj
- a Department of Chemistry , Thiagarajar College , Madurai-625 009 , India
| | - C.D. Sheela
- b Department of Chemistry , The American College , Madurai-625 002 , India
| | - R. Ebenezer
- a Department of Chemistry , Thiagarajar College , Madurai-625 009 , India
| |
Collapse
|
127
|
Novel quinolyl-thienyl chalcones and their 2-pyrazoline derivatives with diverse substitution pattern as antileishmanial agents against Leishmania major. Med Chem Res 2011. [DOI: 10.1007/s00044-011-9647-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
128
|
Reddy MVB, Shen YC, Yang JS, Hwang TL, Bastow KF, Qian K, Lee KH, Wu TS. New bichalcone analogs as NF-κB inhibitors and as cytotoxic agents inducing Fas/CD95-dependent apoptosis. Bioorg Med Chem 2011; 19:1895-906. [PMID: 21377368 DOI: 10.1016/j.bmc.2011.02.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2010] [Revised: 01/28/2011] [Accepted: 02/01/2011] [Indexed: 10/18/2022]
Abstract
A series of novel bichalcone analogs were synthesized and evaluated in lipopolysaccharide (LPS)-activated microglial cells as inhibitors of nitric oxide (NO) and for in vitro anticancer activity using a limited panel of four human cancer cell lines. All analogs inhibited NO production. Compounds 4 and 11 exhibited optimal activity with IC(50) values of 0.3 and 0.5 μM, respectively, and were at least 38-fold better than the positive control. A mechanism of action study showed that both compounds significantly blocked the nuclear translocation of NF-κB p65 and up-regulation of iNOS at 1.0 μM. Compound 4 and three other analogs (3, 20, and 23) exerted significant in vitro anticancer activity GI(50) values ranging from 0.70 to 13.10 μM. A mode of action study using HT-29 colon cancer cells showed that 23 acts by inducing apoptosis signaling.
Collapse
|
129
|
Kumar P, Kumar S, Husain K, Kumar A. An efficient synthesis of pyrazole chalcones under solvent free conditions at room temperature. CHINESE CHEM LETT 2011. [DOI: 10.1016/j.cclet.2010.07.019] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
130
|
Deng Y, He Y, Zhan T, Huang Q. Novel 2'-hydroxylfurylchalcones: synthesis and biological activity. Carbohydr Res 2010; 345:1872-6. [PMID: 20619399 DOI: 10.1016/j.carres.2010.05.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2009] [Revised: 05/18/2010] [Accepted: 05/19/2010] [Indexed: 11/30/2022]
Abstract
Twelve novel 2'-hydroxylfurylchalcones have been synthesized by Claisen-Schmidt condensation with galactosylisomaltol, a reagent prepared from lactose. The procedures are environmentally benign and economical. All the compounds are identified by IR, (1)H NMR and (13)C NMR spectroscopy and by mass spectrometry. Preliminary bioassays indicate that all the title compounds show moderately high herbicidal activities against the height and/or the fresh weight of the seedlings of cucumber, rape, amaranth, wheat, sorghum and Chinese sprangletop at 7.5g of active ingredient per hm(2). However, the compounds exhibit weak fungicidal activities against cucumber powdery mildew, and no activities against rice blast, cucumber grey mould and cucumber downy mildew. The structure-activity relationships are discussed. The present work demonstrates that 2'-hydroxylfurylchalcones could be used as potential lead compounds for further study of novel herbicides.
Collapse
Affiliation(s)
- Yunfei Deng
- East China University of Science and Technology, Shanghai 200237, China
| | | | | | | |
Collapse
|
131
|
Vogel S, Barbic M, Jürgenliemk G, Heilmann J. Synthesis, cytotoxicity, anti-oxidative and anti-inflammatory activity of chalcones and influence of A-ring modifications on the pharmacological effect. Eur J Med Chem 2010; 45:2206-13. [PMID: 20153559 DOI: 10.1016/j.ejmech.2010.01.060] [Citation(s) in RCA: 109] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2009] [Revised: 01/22/2010] [Accepted: 01/25/2010] [Indexed: 10/19/2022]
|
132
|
Honda PA, Ferreira ICP, Cortez DAG, Amado CAB, Silveira TGV, Brenzan MA, Lonardoni MVC. Efficacy of components from leaves of Calophyllum brasiliense against Leishmania (Leishmania) amazonensis. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2010; 17:333-338. [PMID: 19800777 DOI: 10.1016/j.phymed.2009.08.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2008] [Revised: 05/05/2009] [Accepted: 08/06/2009] [Indexed: 05/28/2023]
Abstract
Leishmanicide potential of Calophyllum brasiliense leaves on promastigote and amastigote of Leishmania (Leishmania) amazonensis is evaluated. The LD(50) of dichloromethane extract and hexane fraction for promastigotes was respectively 40 microg/ml and 20 microg/ml. In mouse peritoneal macrophages infected with Leishmania amastigotes the Infection Index decreased respectively 100% and 84.2% in 80 microg/ml and 40 microg/ml concentrations of dichloromethane extract. Hexane fraction decreased infection index respectively by 98.7% and 91.3% within the same concentrations. It was found that pretreatment with dichloromethane extract or with hexane fraction of experimentally infected BALB/c mice decrease the volume of the lesions by L. (L.) amazonensis. Moreover, animals treated topically also revealed healing lesions. Besides, the parasite load in the animals' popliteal lymph nodes was significantly reduced in treated animals, showing that plant components actually control infection. Results show that crude extract and hexane fraction of C. brasiliense reveal a significant in vitro and in vivo leishmanicide activity.
Collapse
Affiliation(s)
- P A Honda
- Departamento de Análises Clínicas, Universidade Estadual de Maringá, Avenida Colombo 5790, 87020-900 Maringá, Paraná, Brazil
| | | | | | | | | | | | | |
Collapse
|
133
|
Muthukumar M, Viswanathamurthi P. Spectral, catalytic, and antifungal studies of ruthenium(II) chalcone complexes. J COORD CHEM 2010. [DOI: 10.1080/00958971003728304] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- M. Muthukumar
- a Department of Chemistry , Periyar University , Salem 636011, Tamil Nadu, India
| | - P. Viswanathamurthi
- a Department of Chemistry , Periyar University , Salem 636011, Tamil Nadu, India
| |
Collapse
|
134
|
Tu HY, Huang AM, Hour TC, Yang SC, Pu YS, Lin CN. Synthesis and biological evaluation of 2′,5′-dimethoxychalcone derivatives as microtubule-targeted anticancer agents. Bioorg Med Chem 2010; 18:2089-2098. [DOI: 10.1016/j.bmc.2010.02.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2009] [Revised: 02/04/2010] [Accepted: 02/05/2010] [Indexed: 01/11/2023]
|
135
|
Begum NA, Roy N, Laskar RA, Roy K. Mosquito larvicidal studies of some chalcone analogues and their derived products: structure–activity relationship analysis. Med Chem Res 2010. [DOI: 10.1007/s00044-010-9305-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
136
|
Bandgar BP, Patil SA, Gacche RN, Korbad BL, Hote BS, Kinkar SN, Jalde SS. Synthesis and biological evaluation of nitrogen-containing chalcones as possible anti-inflammatory and antioxidant agents. Bioorg Med Chem Lett 2009; 20:730-3. [PMID: 20005707 DOI: 10.1016/j.bmcl.2009.11.068] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2009] [Revised: 10/14/2009] [Accepted: 11/13/2009] [Indexed: 11/28/2022]
Abstract
A novel series of nitrogen-containing chalcones were synthesized by Mannich reaction and were screened for anti-inflammatory related activities such as inhibition of cyclooxygenase-2 (COX-2), trypsin and beta-glucuronidase. The antioxidant potential was demonstrated using 1,1-diphenyl-2-picryl hydrazine (DPPH) radical scavenging activity. The results of the above studies shows that the compounds synthesized were found to be effective inhibitors of above pro-inflammatory enzymes, and were found to be possess moderate radical scavenging potential. Overall, the results of the studies reveal that the chalcones with N-methyl piperazine methyl and piperidine methyl substitution (4c, 3b, 4d, 6b) seems to be important for inhibition of beta-glucuronidase. Whereas the chalcones with piperidine methyl substitution (8b, 7b, 7c, 6c, 4b, 3c, 3b) were observed as effective inhibitors of COX-2, while the same compounds were found to be less reactive against COX-1 as compared to COX-2.
Collapse
Affiliation(s)
- Babasaheb P Bandgar
- Organic Chemistry Research Laboratory, School of Chemical Sciences, Solapur University, Solapur 413 255, India.
| | | | | | | | | | | | | |
Collapse
|
137
|
Detsi A, Majdalani M, Kontogiorgis CA, Hadjipavlou-Litina D, Kefalas P. Natural and synthetic 2'-hydroxy-chalcones and aurones: synthesis, characterization and evaluation of the antioxidant and soybean lipoxygenase inhibitory activity. Bioorg Med Chem 2009; 17:8073-85. [PMID: 19853459 DOI: 10.1016/j.bmc.2009.10.002] [Citation(s) in RCA: 186] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2009] [Revised: 09/29/2009] [Accepted: 10/01/2009] [Indexed: 11/29/2022]
Abstract
A series of 2'-hydroxy-chalcones and their oxidative cyclization products, aurones, have been synthesized and tested for their antioxidant and lipoxygenase inhibitory activity. The natural product aureusidin (31) was synthesized in high yield by a new approach. An extensive structure-relationship study was performed and revealed that several chalcones and aurones possess an appealing pharmacological profile combining high antioxidant and lipid peroxidation activity with potent soybean LOX inhibition.
Collapse
Affiliation(s)
- Anastasia Detsi
- National Technical University of Athens, School of Chemical Engineering, Department of Chemical Sciences, Laboratory of Organic Chemistry, Zografou Campus, 15773 Athens, Greece.
| | | | | | | | | |
Collapse
|
138
|
Padaratz P, Fracasso M, de Campos-Buzzi F, Corrêa R, Niero R, Monache FD, Cechinel-Filho V. Antinociceptive Activity of a New Benzofuranone Derived from a Chalcone. Basic Clin Pharmacol Toxicol 2009; 105:257-61. [DOI: 10.1111/j.1742-7843.2009.00441.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
139
|
da Silva Maffei R, Yokoyama-Yasunaka JKU, Miguel DC, Uliana SRB, Espósito BP. Synthesis, characterization and evaluation of antileishmanial activity of copper(II) with fluorinated α-hydroxycarboxylate ligands. Biometals 2009; 22:1095-101. [DOI: 10.1007/s10534-009-9260-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2009] [Accepted: 08/03/2009] [Indexed: 11/30/2022]
|
140
|
Souza AMT, Castro HC, Brito MA, Andrighetti-Fröhner CR, Magalhães U, Oliveira KN, Gaspar-Silva D, Pacheco LK, Joussef AC, Steindel M, Simões CMO, Santos DO, Albuquerque MG, Rodrigues CR, Nunes RJ. Leishmania amazonensis Growth Inhibitors: Biological and Theoretical Features of Sulfonamide 4-Methoxychalcone Derivatives. Curr Microbiol 2009; 59:374-9. [DOI: 10.1007/s00284-009-9447-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2009] [Revised: 06/08/2009] [Accepted: 06/16/2009] [Indexed: 11/27/2022]
|
141
|
Kalashnikov VV, Kalashnikova IP. Features of reaction of aromatic nitro-substituted aldehydes with ketones on the matrix of 2(1H)-pyridone. RUSS J GEN CHEM+ 2009. [DOI: 10.1134/s1070363209060292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
142
|
Nunes A, Sampaio de Sousa A, Nunes da Ponte M, Duarte C. Phase behaviour study of chalcone in dense CO2. J Supercrit Fluids 2009. [DOI: 10.1016/j.supflu.2008.11.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
143
|
Synthesis, biological evaluation and SAR of sulfonamide 4-methoxychalcone derivatives with potential antileishmanial activity. Eur J Med Chem 2009; 44:755-63. [DOI: 10.1016/j.ejmech.2008.04.016] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2008] [Revised: 04/06/2008] [Accepted: 04/15/2008] [Indexed: 11/21/2022]
|
144
|
Quintin J, Desrivot J, Thoret S, Menez PL, Cresteil T, Lewin G. Synthesis and biological evaluation of a series of tangeretin-derived chalcones. Bioorg Med Chem Lett 2009; 19:167-9. [DOI: 10.1016/j.bmcl.2008.10.126] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2008] [Revised: 10/27/2008] [Accepted: 10/28/2008] [Indexed: 10/21/2022]
|
145
|
dos Santos AR, Falcão CAB, Muzitano MF, Kaiser CR, Rossi-Bergmann B, Férézou JP. Ivermectin-derived leishmanicidal compounds. Bioorg Med Chem 2008; 17:496-502. [PMID: 19114308 DOI: 10.1016/j.bmc.2008.12.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2008] [Revised: 11/28/2008] [Accepted: 12/02/2008] [Indexed: 10/21/2022]
Abstract
In the present study a family of macrocyclic and acyclic analogues as well as seco-analogues of avermectins were prepared from commercial Ivermectin (IVM) and their antileishmanial activity assayed against axenic promastigote and intracellular amastigote forms of Leishmania amazonensis. Contrarily to the filaricidal activity, the leishmanicidal potentiality of avermectin analogues does not appear to depend on the integrity of the non-conjugated Delta(3,4)-hexahydrobenzofuran moiety. Conjugated Delta(2,3)-IVM or its corresponding conjugated secoester show higher anti-leishmania activity than the parent compound. Surprisingly, the diglycosylated northern sub-unit exhibits the same anti-amastigote potentiality as the southern hexahydrobenzofuran. As expected for compounds derived from the widely used Ivermectin antibiotic, little toxicity has been noticed for most of the novel analogues prepared.
Collapse
Affiliation(s)
- Anderson Rouge dos Santos
- Instituto de Química, Universidade Federal do Rio de Janeiro, Ilha do Fundão, CT, Bloco A, CEP 21941-909, Rio de Janeiro, RJ, Brazil
| | | | | | | | | | | |
Collapse
|
146
|
Chiaradia LD, Mascarello A, Purificação M, Vernal J, Cordeiro MNS, Zenteno ME, Villarino A, Nunes RJ, Yunes RA, Terenzi H. Synthetic chalcones as efficient inhibitors of Mycobacterium tuberculosis protein tyrosine phosphatase PtpA. Bioorg Med Chem Lett 2008; 18:6227-30. [DOI: 10.1016/j.bmcl.2008.09.105] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2008] [Revised: 09/25/2008] [Accepted: 09/29/2008] [Indexed: 01/30/2023]
|
147
|
Marín-Villa M, Vargas-Inchaustegui DA, Chaves SP, Tempone AJ, Dutra JM, Soares MJ, Ueda-Nakamura T, Mendonça SC, Rossi-Bergmann B, Soong L, Traub-Csekö YM. The C-terminal extension of Leishmania pifanoi amastigote-specific cysteine proteinase Lpcys2: A putative function in macrophage infection. Mol Biochem Parasitol 2008; 162:52-9. [DOI: 10.1016/j.molbiopara.2008.07.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2007] [Revised: 06/26/2008] [Accepted: 07/11/2008] [Indexed: 11/16/2022]
|
148
|
dos Santos L, Lima LA, Cechinel-Filho V, Corrêa R, de Campos Buzzi F, Nunes RJ. Synthesis of new 1-phenyl-3-{4-[(2E)-3-phenylprop-2-enoyl]phenyl}-thiourea and urea derivatives with anti-nociceptive activity. Bioorg Med Chem 2008; 16:8526-34. [PMID: 18722128 DOI: 10.1016/j.bmc.2008.08.019] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2008] [Revised: 07/29/2008] [Accepted: 08/04/2008] [Indexed: 10/21/2022]
|
149
|
Synthesis and cytotoxic, anti-inflammatory, and anti-oxidant activities of 2',5'-dialkoxylchalcones as cancer chemopreventive agents. Bioorg Med Chem 2008; 16:7270-6. [PMID: 18606546 DOI: 10.1016/j.bmc.2008.06.031] [Citation(s) in RCA: 95] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2008] [Revised: 06/17/2008] [Accepted: 06/18/2008] [Indexed: 11/23/2022]
Abstract
In an effort to develop novel anti-tumor, or cancer chemopreventive agents, a series of 2',5'-dialkoxylchalcones were prepared by Claisen-Schmidt condensation of appropriate acetophenones with suitable aromatic aldehyde. In vitro screening revealed low micromolar activity (IC(50)) against several human cancer cell lines. Selective compound 10 induced an accumulation of A549 cells in the G(2)/M phase arrest which was well correlated with inhibitory activity against tubulin polymerization. Cytotoxic compounds 3 and 12 showed significant inhibitory effects on NO production in lipopolysaccharide (LPS)-activated RAW 264.7 macrophage-like cells while cytotoxic compound 10 revealed potent inhibitory effect on TNF-alpha formation in RAW 264.7 cells in response to LPS. Compounds 3 and 10 also showed significant inhibitory effects on xanthine oxidase. The present results suggested that compounds 3 and 10 were potential to be served as cancer chemopreventive agents.
Collapse
|
150
|
A new Heck reaction modification using ketone Mannich bases as enone precursors: Parallel synthesis of anti-leishmanial chalcones. Bioorg Med Chem Lett 2008; 18:1985-9. [DOI: 10.1016/j.bmcl.2008.01.112] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2008] [Revised: 01/28/2008] [Accepted: 01/29/2008] [Indexed: 11/19/2022]
|