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Jiatsa Mbouna CD, Tchatat Tali BM, Tsouh Fokou PV, Madiesse Kemgne EA, Keumoe R, Toghueo Kouipou RM, Yamthe Tchokouaha LR, Tchuente Tchuenmogne MA, Kenou DK, Sahal D, Boyom FF. Specific sub fractions from Terminalia mantaly (H. Perrier) extracts potently inhibit Plasmodium falciparum rings, merozoite egress and invasion. JOURNAL OF ETHNOPHARMACOLOGY 2022; 285:114909. [PMID: 34902534 DOI: 10.1016/j.jep.2021.114909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 12/07/2021] [Accepted: 12/08/2021] [Indexed: 06/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Terminalia mantaly (H. Perrier) and Terminalia superba (Engl. & Diels) are sources of treatment for various diseases, including malaria and/or related symptoms in parts of Southwestern Cameroon. However, there is limited information on the extent of the antiplasmodial potential of their extracts. AIM OF THE STUDY The present study was designed to investigate the antiplasmodial potential of chromatographic sub fractions (SFs) from promising fractions of Terminalia mantaly (Tm) [TmsbwChl, the chloroform fraction from water extract of Tm, IC50 (μg/mL) PfINDO: 0.56, Pf3D7: 1.12; SI > 357 (HEK/PfINDO) & 178 (HEK/Pf3D7)] and Terminalia superba (Ts) [TsrmEA, the ethyl acetate fraction from methanolic extract of Ts, IC50 (μg/mL) PfINDO: 1.82, Pf3D7: 1.65; SI > 109 (HEK/PfINDO) & 121 (HEK/Pf3D7)] obtained from previous studies. The SFs were tested against Plasmodium falciparum 3D7 (Pf3D7-chloroquine sensitive) and INDO (PfINDO-chloroquine resistant) strains in culture. Also, the phytochemical profile of potent SFs was determined and finally, the inhibition of the asexual blood stages of Plasmodium falciparum by the SFs with the highest promise was assessed. MATERIAL AND METHODS Selected SFs were submitted to a second bio-guided fractionation using silica gel column chromatography. The partial phytochemical composition of potent antiplasmodial SFs was determined using gas chromatography coupled to mass spectrometry (GC-MS). The SYBR Green I-based fluorescence microtiter plate assay was used to monitor the growth of Plasmodium falciparum parasites in culture in the presence or absence of extracts. Microscopy and flow cytometry counting was used to assess the Plasmodium falciparum stage-specific inhibition and post-drug exposure growth suppression by highly potent extracts. RESULTS Twenty-one of the 39 SFs afforded from TmsbwChl showed activity (IC50: 0.29-4.74 μg/mL) against both Pf3D7 and PfINDO strains. Of note, eight SFs namely, Tm25, Tm28-30, Tm34-36 and Tm38, exerted highly potent antiplasmodial activity (IC50 < 1 μg/mL) with IC50PfINDO: 0.41-0.84 μg/mL and IC50Pf3D7: 0.29-0.68 μg/mL. They also displayed very high selectivity (50 < SIPfINDO, SIPf3D7 > 344) on the two Plasmodial strains. On the other hand, 7 SFs (SFs Ts03, Ts04, Ts06, Ts09, Ts10, Ts12 and Ts13) from TsrmEA showed promising inhibitory potential against both parasite strains (IC50: 2.01-5.14 μg/mL). Sub fraction Tm36 (IC50PfINDO: 0.41 μg/mL, SIPfINDO > 243; IC50Pf3D7: 0.29 μg/mL, SIPf3D7 > 344) showed the highest promise. The GC-MS analysis of the 8 selected SFs led to the identification of 99 phytometabolites, with D-limonene (2), benzaldehyde (12), carvone (13), caryophyllene (35), hexadecanoic acid, methyl ester (74) and 9-octadecenoic acid, methyl ester (82) being the main constituents. Sub fractions Tm28, Tm29, Tm30, Tm36 and Tm38 inhibited all the three intraerythrocytic stages of P. falciparum, with strong potency against ring stage development, merozoite egress and invasion processes. CONCLUSIONS This study has identified highly potent antiplasmodial SFs from Terminalia mantaly with significant activity on the intraerythrocytic development of Plasmodium falciparum. These SFs qualify as promising sources of novel antiplasmodial lead compounds. Further purification and characterization studies are expected to unravel molecular targets in rings and merozoites.
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Affiliation(s)
- Cedric Derick Jiatsa Mbouna
- Antimicrobial and Biocontrol Agents Unit, Laboratory for Phytobiochemistry and Medicinal Plants Study, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
| | - Brice Mariscal Tchatat Tali
- Antimicrobial and Biocontrol Agents Unit, Laboratory for Phytobiochemistry and Medicinal Plants Study, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
| | - Patrick Valere Tsouh Fokou
- Antimicrobial and Biocontrol Agents Unit, Laboratory for Phytobiochemistry and Medicinal Plants Study, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon; Department of Biochemistry, Faculty of Sciences, University of Bamenda, PO Box 39, Bambili, Cameroon
| | - Eugenie Aimee Madiesse Kemgne
- Antimicrobial and Biocontrol Agents Unit, Laboratory for Phytobiochemistry and Medicinal Plants Study, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
| | - Rodrigue Keumoe
- Antimicrobial and Biocontrol Agents Unit, Laboratory for Phytobiochemistry and Medicinal Plants Study, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
| | - Rufin Marie Toghueo Kouipou
- Antimicrobial and Biocontrol Agents Unit, Laboratory for Phytobiochemistry and Medicinal Plants Study, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
| | - Lauve Rachel Yamthe Tchokouaha
- Antimicrobial and Biocontrol Agents Unit, Laboratory for Phytobiochemistry and Medicinal Plants Study, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon; Institute for Medical Research and Medicinal Plants Studies (IMPM), Yaoundé, P.O. Box 6163, Yaoundé, Cameroon
| | - Marthe Aimée Tchuente Tchuenmogne
- Laboratory of Natural Products and Organic Synthesis, Department of Organic Chemistry,Faculty of Science, University of Yaoundé 1, P.O. Box 812, Yaoundé, Cameroon
| | - Donald Kagho Kenou
- Laboratory of Natural Products and Organic Synthesis, Department of Organic Chemistry,Faculty of Science, University of Yaoundé 1, P.O. Box 812, Yaoundé, Cameroon
| | - Dinkar Sahal
- Malaria Drug Discovery Laboratory, International Centre for Genetic Engineering and Biotechnology, New Delhi -110067, India.
| | - Fabrice Fekam Boyom
- Antimicrobial and Biocontrol Agents Unit, Laboratory for Phytobiochemistry and Medicinal Plants Study, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon.
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Enhancing the chemosensitivity of HepG2 cells towards cisplatin by organoselenium pseudopeptides. Bioorg Chem 2021; 109:104713. [PMID: 33611136 DOI: 10.1016/j.bioorg.2021.104713] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 01/24/2021] [Accepted: 01/30/2021] [Indexed: 12/29/2022]
Abstract
Despite all recent advances in the treatment of hepatocellular carcinoma (HCC), chemotherapy resistance still represents a major challenge in its successful clinical management. Chemo-sensitization offers an attractive strategy to counter drug resistance. Herein we report the identification of novel organoselenium-based pseudopeptides as promising highly effective chemo-sensitizers in treating HCC with cisplatin. A series of functionalized pseudopeptide- (5-9 and 17-19), peptidomimetic- (10-12 and 20-23), and tetrazole-based (13-16 and 24-27) organoselenium compounds were synthesized via isonitrile-based multicomponent reactions from two novel selenium-containing isocyanides. All compounds were evaluated for their cytotoxicity against HepG2 and the non-cytotoxic doses were used to restor the sensitivity of the cells to cisplatin. New organoselenium compounds (7, 9, 15, or 23) led to an effective chemo-sensitization of HepG2 cells towards cisplatin (up-to 27-fold). Cell cycle studies indicate that the most potent peptidomimetic diselenide 23 arrested cells at the S phase and induced apoptosis via ROS modulation.
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Narula AK, Azad CS, Nainwal LM. New dimensions in the field of antimalarial research against malaria resurgence. Eur J Med Chem 2019; 181:111353. [DOI: 10.1016/j.ejmech.2019.05.043] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 04/16/2019] [Accepted: 05/15/2019] [Indexed: 12/20/2022]
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Abbasov ME, Hudson BM, Tantillo DJ, Romo D. Stereodivergent, Diels-Alder-initiated organocascades employing α,β-unsaturated acylammonium salts: scope, mechanism, and application. Chem Sci 2016; 8:1511-1524. [PMID: 28616147 PMCID: PMC5460596 DOI: 10.1039/c6sc04273b] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 10/24/2016] [Indexed: 12/16/2022] Open
Abstract
Chiral α,β-unsaturated acylammonium salts are novel dienophiles enabling enantioselective Diels–Alder-lactonization (DAL) organocascades leading to cis- and trans-fused, bicyclic γ- and δ-lactones.
Chiral α,β-unsaturated acylammonium salts are novel dienophiles enabling enantioselective Diels–Alder-lactonization (DAL) organocascades leading to cis- and trans-fused, bicyclic γ- and δ-lactones from readily prepared dienes, commodity acid chlorides, and a chiral isothiourea organocatalyst under mild conditions. We describe extensions of stereodivergent DAL organocascades to other racemic dienes bearing pendant secondary and tertiary alcohols, and application to a formal synthesis of (+)-dihydrocompactin is described. A combined experimental and computational investigation of unsaturated acylammonium salt formation and the entire DAL organocascade pathway provide a rationalization of the effect of Brønsted base additives and enabled a controllable, diastereodivergent DAL process leading to a full complement of possible stereoisomeric products. Evaluation of free energy and enthalpy barriers in conjunction with experimentally observed temperature effects revealed that the DAL is a rare case of an entropy-controlled diastereoselective process. NMR analysis of diene alcohol–Brønsted base interactions and computational studies provide a plausible explanation of observed stabilization of exo transition-state structures through hydrogen-bonding effects.
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Affiliation(s)
- Mikail E Abbasov
- Department of Chemistry and Biochemistry , Baylor University , One Bear Place 97348 , Waco , Texas 76798 , USA
| | - Brandi M Hudson
- Department of Chemistry , University of California-Davis , One Shields Avenue , Davis , California 95616 , USA .
| | - Dean J Tantillo
- Department of Chemistry , University of California-Davis , One Shields Avenue , Davis , California 95616 , USA .
| | - Daniel Romo
- Department of Chemistry and Biochemistry , Baylor University , One Bear Place 97348 , Waco , Texas 76798 , USA
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Shaaban S, Negm A, Ashmawy AM, Ahmed DM, Wessjohann LA. Combinatorial synthesis, in silico, molecular and biochemical studies of tetrazole-derived organic selenides with increased selectivity against hepatocellular carcinoma. Eur J Med Chem 2016; 122:55-71. [PMID: 27343853 DOI: 10.1016/j.ejmech.2016.06.005] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 05/08/2016] [Accepted: 06/04/2016] [Indexed: 12/15/2022]
Abstract
Novel tetrazole-based diselenides and selenoquinones were synthesized via azido-Ugi and sequential nucleophilic substitution (SN) strategy. Molecular docking study into mammalian TrxR1 was used to predict the anticancer potential of the newly synthesized compounds. The cytotoxic activity of the compounds was evaluated using hepatocellular carcinoma (HepG2) and breast adenocarcinoma (MCF-7) cancer cells and compared with their cytotoxicity in normal fibroblast (WI-38) cells. The corresponding redox properties of the synthesized compounds were assessed employing 2,2-diphenyl-1-picrylhydrazyl (DPPH), glutathione peroxidase (GPx)-like activity and bleomycin dependent DNA damage. In general, diselenides showed preferential cytotoxicity to HepG2 compared to MCF-7 cells. These compounds exhibited also good GPx catalytic activity compared to ebselen (up to 5 fold). Selenoquinones 18, 21, 22 and 23 were selected to monitor the expression levels of caspase-8, Bcl-2 and Ki-67 molecular biomarkers. Interestingly, these compounds downregulated the Bcl-2 and Ki-67 expression levels and activated the expression of caspase-8 in HepG2 cells compared to untreated cells. These results indicate that some of the newly synthesized compounds possess anti-HepG2 activity.
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Affiliation(s)
- Saad Shaaban
- Organic Chemistry Division, Department of Chemistry, Faculty of Science, Mansoura University, El-Gomhorya Street, 35516 Mansoura, Egypt; Leibniz Institute of Plant Biochemistry, Department of Bioorganic Chemistry, Weinberg 3, D-06120 Halle (Saale), Germany.
| | - Amr Negm
- Biochemistry Division, Department of Chemistry, Faculty of Science, Mansoura University, El-Gomhorya Street, 35516 Mansoura, Egypt
| | - Abeer M Ashmawy
- Cancer Biology Department, National Cancer Institute, Cairo University, Egypt
| | - Dalia M Ahmed
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Egypt
| | - Ludger A Wessjohann
- Leibniz Institute of Plant Biochemistry, Department of Bioorganic Chemistry, Weinberg 3, D-06120 Halle (Saale), Germany.
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Abstract
How to design a ligand to bind multiple targets, rather than to a single target, is the focus of this review. Rational polypharmacology draws on knowledge that is both broad ranging and hierarchical. Computer-aided multitarget ligand design methods are described according to their nested knowledge level. Ligand-only and then receptor-ligand strategies are first described; followed by the metabolic network viewpoint. Subsequently strategies that view infectious diseases as multigenomic targets are discussed, and finally the disease level interpretation of medicinal therapy is considered. As yet there is no consensus on how best to proceed in designing a multitarget ligand. The current methodologies are bought together in an attempt to give a practical overview of how polypharmacology design might be best initiated.
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Passing on the medicinal chemistry baton: training undergraduates to be industry-ready through research projects between the University of Nottingham and GlaxoSmithKline. Drug Discov Today 2016; 21:880-7. [PMID: 26852693 DOI: 10.1016/j.drudis.2016.01.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 01/04/2016] [Accepted: 01/28/2016] [Indexed: 01/09/2023]
Abstract
In this article we describe a radically different industry-academia collaboration between the School of Chemistry, University of Nottingham, and GlaxoSmithKline (GSK), aiming to train students in research and give them an insight into medicinal chemistry as practiced in industry. The project concerns the discovery of potent and selective αvβ6 integrin antagonists to treat idiopathic pulmonary fibrosis; the synthetic chemistry is performed by a group of ten final-year undergraduates and the biological and physicochemical screening data are generated by GSK. The project planning, organisation and operation are discussed, together with some of the challenges and rewards of working with undergraduates.
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Spiroindolone NITD609 is a novel antimalarial drug that targets the P-type ATPase PfATP4. Future Med Chem 2016; 8:227-38. [PMID: 26824174 DOI: 10.4155/fmc.15.177] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Malaria is caused by the Plasmodium parasite and is a major health problem leading to many deaths worldwide. Lack of a vaccine and increasing drug resistance highlights the need for new antimalarial drugs with novel targets. Antiplasmodial activity of spiroindolones was discovered through whole-cell, phenotypic screening methods. Optimization of the lead spiroindolone improved both potency and pharmacokinetic properties leading to drug candidate NITD609 which has produced encouraging results in clinical trials. Spiroindolones inhibit PfATP4, a P-type Na(+)-ATPase in the plasma membrane of the parasite, causing a fatal disruption of its sodium homeostasis. Other diverse compounds from the Malaria Box appear to target PfATP4 warranting further research into its structure and binding with NITD609 and other potential antimalarial drugs.
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Abstract
Natural products have traditionally been a major source of leads in the drug discovery process. However, the development of high-throughput screening led to an increased interest in synthetic methods that enabled the rapid construction of large libraries of molecules. This resulted in the termination or downscaling of many natural product research programs, but the chemical libraries did not necessarily produce a larger amount of drug leads. On one hand, this chapter explores the current state of natural product research within the drug discovery process. On the other hand it evaluates the efforts made to increase the amount of leads generated from chemical libraries and considers what role natural products could play here.
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Affiliation(s)
- Eric F van Herwerden
- Institute of Chemistry, Technische Universität Berlin, Strasse des 17. Juni 124, 10623, Berlin, Germany
| | - Roderich D Süssmuth
- Institute of Chemistry, Technische Universität Berlin, Strasse des 17. Juni 124, 10623, Berlin, Germany.
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Mukherjee J, Sil S, Chattopadhyay SK. Diversity-oriented synthesis of analogues of the novel macrocyclic peptide FR-225497 through late stage functionalization. Beilstein J Org Chem 2015; 11:2487-92. [PMID: 26734096 PMCID: PMC4685926 DOI: 10.3762/bjoc.11.270] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Accepted: 11/23/2015] [Indexed: 12/14/2022] Open
Abstract
A concise synthetic approach to a class of biologically interesting cyclic tetrapeptides is reported which involves a late-stage functionalization of a macrocyclic scaffold through cross metathesis in an attempt to create diversity. The utility of this protocol is demonstrated through the preparation of three structural analogues of the important naturally occurring histone deacetylase inhibitor FR-225497.
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Affiliation(s)
- Jyotiprasad Mukherjee
- Department of Chemistry, University of Kalyani, Kalyani - 741235, West Bengal, India
| | - Suman Sil
- Department of Chemistry, University of Kalyani, Kalyani - 741235, West Bengal, India
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Abstract
Because of the perpetual development of resistance to current therapies for malaria, the Medicines for Malaria Venture developed the Malaria Box to facilitate the drug development process. We tested the 80 most potent compounds from the box for bilayer-mediated effects on membrane protein conformational changes (a measure of likely toxicity) in a gramicidin-based stopped flow fluorescence assay. Among the Malaria Box compounds tested, four compounds altered membrane properties (p< 0.05); MMV007384 stood out as a potent bilayer-perturbing compound that is toxic in many cell-based assays, suggesting that testing for membrane perturbation could help identify toxic compounds. In any case, MMV007384 should be approached with caution, if at all.
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Affiliation(s)
- Nicole B. Ramsey
- Weill Cornell/Rockefeller/Sloan-Kettering Tri-Institutional MD-PhD Program, New York, NY, United States of America
- Graduate Program in Pharmacology, Weill Cornell Graduate School of Medical Sciences, New York, NY, United States of America
| | - Olaf S. Andersen
- Department of Physiology and Biophysics, Weill Cornell Medical College, New York, NY, United States of America
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Shaaban S, Abdel-Wahab BF. Groebke–Blackburn–Bienaymé multicomponent reaction: emerging chemistry for drug discovery. Mol Divers 2015; 20:233-54. [DOI: 10.1007/s11030-015-9602-6] [Citation(s) in RCA: 114] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Accepted: 05/12/2015] [Indexed: 01/31/2023]
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Pandey P, Singh S, Tewari N, Srinivas K, Shukla A, Gupta N, Vasudev PG, Khan F, Pal A, Bhakuni RS, Tandon S, Kumar JK, Banerjee S. Hairy root mediated functional derivatization of artemisinin and their bioactivity analysis. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcatb.2015.01.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Small-molecule xenomycins inhibit all stages of the Plasmodium life cycle. Antimicrob Agents Chemother 2014; 59:1427-34. [PMID: 25512429 DOI: 10.1128/aac.04704-14] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Widespread resistance to most antimalaria drugs in use has prompted the search for novel candidate compounds with activity against Plasmodium asexual blood stages to be developed for treatment. In addition, the current malaria eradication programs require the development of drugs that are effective against all stages of the parasite life cycle. We have analyzed the antimalarial properties of xenomycins, a novel subclass of small molecule compounds initially isolated for anticancer activity and similarity to quinacrine in biological effects on mammalian cells. In vitro studies show potent activity of Xenomycins against Plasmodium falciparum. Oral administration of xenomycins in mouse models result in effective clearance of liver and blood asexual and sexual stages, as well as effective inhibition of transmission to mosquitoes. These characteristics position xenomycins as antimalarial candidates with potential activity in prevention, treatment and elimination of this disease.
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Asad N, Samarakoon TB, Zang Q, Loh JK, Javed S, Hanson PR. Rapid, scalable assembly of stereochemically rich, mono- and bicyclic acyl sultams. Org Lett 2014; 16:82-5. [PMID: 24313225 PMCID: PMC4179432 DOI: 10.1021/ol403070w] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A one-pot, sequential protocol is reported that involves complementary ambiphile pairing (CAP) of a vinyl sulfonamide with a variety of unprotected amino acids via aza-Michael addition and subsequent intramolecular amidation. The method generates diverse, sp(3)-rich mono- and bicyclic acyl sultams in a highly scalable manner. Modular pairing of stereochemically rich building blocks allows quick access to all possible isomers. Extension to include one-pot, sequential 3-, 4-, and 5-multicomponent protocols is also discussed.
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Affiliation(s)
- Naeem Asad
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS, 66045 and The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, KS, 66047
| | - Thiwanka B. Samarakoon
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS, 66045 and The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, KS, 66047
| | - Qin Zang
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS, 66045 and The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, KS, 66047
| | - Joanna K. Loh
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS, 66045 and The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, KS, 66047
| | - Salim Javed
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS, 66045 and The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, KS, 66047
| | - Paul. R. Hanson
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS, 66045 and The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, KS, 66047
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Peña S, Fagundez C, Medeiros A, Comini M, Scarone L, Sellanes D, Manta E, Tulla-Puche J, Albericio F, Stewart L, Yardley V, Serra G. Synthesis of cyclohexapeptides as antimalarial and anti-trypanosomal agents. MEDCHEMCOMM 2014. [DOI: 10.1039/c4md00135d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Azolic and non-azolic cyclohexapeptides were obtained and/or evaluated as promising antimalarial and/or anti-trypanosomal agents.
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Affiliation(s)
- S. Peña
- Cátedra de Química Farmacéutica
- (DQO)
- Facultad de Química
- Universidad de la República
- Montevideo, Uruguay
| | - C. Fagundez
- Cátedra de Química Farmacéutica
- (DQO)
- Facultad de Química
- Universidad de la República
- Montevideo, Uruguay
| | - A. Medeiros
- Group Redox Biology of Trypanosomes
- Institut Pasteur de Montevideo
- Montevideo, Uruguay
- Departamento de Bioquímica
- Facultad de Medicina
| | - M. Comini
- Group Redox Biology of Trypanosomes
- Institut Pasteur de Montevideo
- Montevideo, Uruguay
| | - L. Scarone
- Cátedra de Química Farmacéutica
- (DQO)
- Facultad de Química
- Universidad de la República
- Montevideo, Uruguay
| | - D. Sellanes
- Cátedra de Química Farmacéutica
- (DQO)
- Facultad de Química
- Universidad de la República
- Montevideo, Uruguay
| | - E. Manta
- Cátedra de Química Farmacéutica
- (DQO)
- Facultad de Química
- Universidad de la República
- Montevideo, Uruguay
| | - J. Tulla-Puche
- Institute for Research in Biomedicine (IRB Barcelona)
- 08028-Barcelona, Spain
- Centre on Bioengineering
- Biomaterials and Nanomedicine
- Barcelona Science Park
| | - F. Albericio
- Institute for Research in Biomedicine (IRB Barcelona)
- 08028-Barcelona, Spain
- Centre on Bioengineering
- Biomaterials and Nanomedicine
- Barcelona Science Park
| | - L. Stewart
- Faculty of Infectious & Tropical Disease
- LSHTM
- London, UK
| | - V. Yardley
- Faculty of Infectious & Tropical Disease
- LSHTM
- London, UK
| | - G. Serra
- Cátedra de Química Farmacéutica
- (DQO)
- Facultad de Química
- Universidad de la República
- Montevideo, Uruguay
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