1
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Tang X, Kokot J, Waibl F, Fernández-Quintero ML, Kamenik AS, Liedl KR. Addressing Challenges of Macrocyclic Conformational Sampling in Polar and Apolar Solvents: Lessons for Chameleonicity. J Chem Inf Model 2023; 63:7107-7123. [PMID: 37943023 PMCID: PMC10685455 DOI: 10.1021/acs.jcim.3c01123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 10/24/2023] [Accepted: 10/24/2023] [Indexed: 11/10/2023]
Abstract
We evaluated a workflow to reliably sample the conformational space of a set of 47 peptidic macrocycles. Starting from SMILES strings, we use accelerated molecular dynamics simulations to overcome high energy barriers, in particular, the cis-trans isomerization of peptide bonds. We find that our approach performs very well in polar solvents like water and dimethyl sulfoxide. Interestingly, the protonation state of a secondary amine in the ring only slightly influences the conformational ensembles of our test systems. For several of the macrocycles, determining the conformational distribution in chloroform turns out to be considerably more challenging. Especially, the choice of partial charges crucially influences the ensembles in chloroform. We address these challenges by modifying initial structures and the choice of partial charges. Our results suggest that special care has to be taken to understand the configurational distribution in apolar solvents, which is a key step toward a reliable prediction of membrane permeation of macrocycles and their chameleonic properties.
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Affiliation(s)
- Xuechen Tang
- Department
of General, Inorganic and Theoretical Chemistry, University of Innsbruck, A-6020 Innsbruck, Austria
| | - Janik Kokot
- Department
of General, Inorganic and Theoretical Chemistry, University of Innsbruck, A-6020 Innsbruck, Austria
| | - Franz Waibl
- Department
of General, Inorganic and Theoretical Chemistry, University of Innsbruck, A-6020 Innsbruck, Austria
- Department
of Chemistry and Applied Biosciences, ETH
Zürich, 8093 Zürich, Switzerland
| | | | - Anna S. Kamenik
- Department
of General, Inorganic and Theoretical Chemistry, University of Innsbruck, A-6020 Innsbruck, Austria
| | - Klaus R. Liedl
- Department
of General, Inorganic and Theoretical Chemistry, University of Innsbruck, A-6020 Innsbruck, Austria
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2
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Rocha YM, Magalhães EP, de Medeiros Chaves M, Machado Marinho M, Nascimento E Melo de Oliveira V, Nascimento de Oliveira R, Lima Sampaio T, de Menezes RRPPB, Martins AMC, Nicolete R. Antiparasitary and antiproliferative activities in vitro of a 1,2,4-oxadiazole derivative on Trypanosoma cruzi. Parasitol Res 2022; 121:2141-2156. [PMID: 35610523 DOI: 10.1007/s00436-022-07554-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 05/13/2022] [Indexed: 11/26/2022]
Abstract
Chagas disease (CD) is a neglected disease, prevalent and endemic in Latin America, but also present in Europe and North America. The main treatment used for this disease is benznidazole, but its efficacy is variable in the chronic phase and presents high toxicity. So, there is a need for the development of new therapeutic agents. The five-membered heterocyclic 1,2,4-oxadiazole ring has received attention for its unique properties and a broad spectrum of biological activities and is therefore a potential candidate for the development of new drugs. Thus, the aim of this study was to evaluate the activity of the N-cyclohexyl-3-(3-methylphenyl)-1,2,4-oxadiazol-5-amine (2) on the evolutionary forms of Trypanosoma cruzi strain Y, as well as its mechanisms of action and in silico theoretical approach. The results by computational method showed an interaction of the 1,2,4-oxadiazole (2) with TcGAPDH, cruzain, and trypanothione reductase, showing good charge distribution and affinity in those three targets. Furthermore, cytotoxicity in LLC-MK2 cells was performed by the MTT method. In the assays with different parasite forms, the tested compound showed similar time-dependent concentration effect. The evaluation of the antiamastigote effect between the two concentrations tested showed a reduction in the number of infected cells and also in the number of amastigotes per infected cell. By flow cytometry, the compound (2) displayed alterations suggestive of necrotic events. Finally, in scanning electron microscopy structural alterations were present, characteristic of necrosisin the epimastigote forms. Overall, the 1,2,4-oxadiazole derivative (2) here evaluated opens perspectives to the development of new antichagasic agents.
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Affiliation(s)
- Yasmim Mendes Rocha
- Post-Graduate Program in Pharmaceutical Sciences - Federal University of Ceará, Fortaleza, CE, Brazil
- Fundação Oswaldo Cruz (Fiocruz Ceará), Rua São José, S/N, Eusébio, 61760-000, Brazil
| | - Emanuel Paula Magalhães
- Post-Graduate Program in Pharmaceutical Sciences - Federal University of Ceará, Fortaleza, CE, Brazil
| | | | - Márcia Machado Marinho
- Department of Clinical and Toxicological Analysis, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Valentina Nascimento E Melo de Oliveira
- Department of Chemistry, Federal Rural University of Pernambuco, Recife, PE, Brazil
- Instituto Federal de Educação Ciência E Tecnologia de Pernambuco, Campus Ipojuca, Ipojuca, 55590-000, Brazil
| | | | - Tiago Lima Sampaio
- Post-Graduate Program in Pharmaceutical Sciences - Federal University of Ceará, Fortaleza, CE, Brazil
- Department of Clinical and Toxicological Analysis, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Ramon R P P B de Menezes
- Post-Graduate Program in Pharmaceutical Sciences - Federal University of Ceará, Fortaleza, CE, Brazil
- Department of Clinical and Toxicological Analysis, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Alice M C Martins
- Post-Graduate Program in Pharmaceutical Sciences - Federal University of Ceará, Fortaleza, CE, Brazil
- Department of Clinical and Toxicological Analysis, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Roberto Nicolete
- Post-Graduate Program in Pharmaceutical Sciences - Federal University of Ceará, Fortaleza, CE, Brazil.
- Fundação Oswaldo Cruz (Fiocruz Ceará), Rua São José, S/N, Eusébio, 61760-000, Brazil.
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3
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Bi T, Xu Y, Xu X, Tang B, Yang Q, Zang Y, Lin Z, Li J, Yang W. Natural scaffolds-inspired synthesis of CF3-substituted macrolides enabled by Rh-catalyzed C–H alkylation macrocyclization. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.10.043] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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4
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Irabuena C, Scarone L, de Souza GE, Aguiar ACC, Mendes GR, Guido RVC, Serra G. Synthesis and antiplasmodial assessment of nitazoxanide and analogs as new antimalarial candidates. Med Chem Res 2022; 31:426-435. [PMID: 35106047 PMCID: PMC8794615 DOI: 10.1007/s00044-021-02843-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 12/16/2021] [Indexed: 10/26/2022]
Abstract
During the last years, the progression to control malaria disease seems to be slowed and WHO (World Health Organization) reported a modeling analysis with the prediction of the increase in malaria morbidity and mortality in sub-Saharan Africa during the COVID-19 pandemic. A rapid way to the discovery of new drugs could be carried out by performing investigations to identify drugs based on repurposing of "old" drugs. The 5-nitrothiazole drug, Nitazoxanide was shown to be active against intestinal protozoa, human helminths, anaerobic bacteria, viruses, etc. In this work, Nitazoxanide and analogs were prepared using two methodologies and evaluated against P. falciparum 3D7. A bithiazole analog, showed attractive inhibitory activity with an EC50 value of 5.9 μM, low propensity to show toxic effect against HepG2 cells at 25 μM, and no cross-resistance with standard antimalarials.
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Affiliation(s)
- Camila Irabuena
- Química Farmacéutica, Departamento de Química Orgánica, Facultad de Química, Universidad de la República, General Flores 2124, CC1157 Montevideo, Uruguay
- Graduate Program in Chemistry, Facultad de Química, Universidad de la República, Montevideo, Uruguay
| | - Laura Scarone
- Química Farmacéutica, Departamento de Química Orgánica, Facultad de Química, Universidad de la República, General Flores 2124, CC1157 Montevideo, Uruguay
| | - Guilherme Eduardo de Souza
- São Carlos Institute of Physics, University of Sao Paulo, Avenida João Dagnone, 1100, São Carlos, São Paulo 13563-120 Brazil
| | - Anna Caroline Campos Aguiar
- São Carlos Institute of Physics, University of Sao Paulo, Avenida João Dagnone, 1100, São Carlos, São Paulo 13563-120 Brazil
| | - Giovana Rossi Mendes
- São Carlos Institute of Physics, University of Sao Paulo, Avenida João Dagnone, 1100, São Carlos, São Paulo 13563-120 Brazil
| | - Rafael Victorio Carvalho Guido
- São Carlos Institute of Physics, University of Sao Paulo, Avenida João Dagnone, 1100, São Carlos, São Paulo 13563-120 Brazil
| | - Gloria Serra
- Química Farmacéutica, Departamento de Química Orgánica, Facultad de Química, Universidad de la República, General Flores 2124, CC1157 Montevideo, Uruguay
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5
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Posada L, Davyt D, Serra G. First total synthesis of versicotide A, B and C. RSC Adv 2020; 10:43653-43659. [PMID: 35519702 PMCID: PMC9058379 DOI: 10.1039/d0ra09635k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 11/24/2020] [Indexed: 12/25/2022] Open
Abstract
The syntheses of versicotides A-C, natural products containing anthranilic acid and NMe-Ala, were achieved by solid phase peptide synthesis on 2-chlorotrityl resin followed by solution phase macrocyclization. Using an oxyma additive, the difficult coupling reactions to the deactivated aromatic amine of o-aminobenzoic acid, were performed in high yield, avoiding anthranilic rearrangements or side reactions.
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Affiliation(s)
- Laura Posada
- Química Farmacéutica, Departamento de Química Orgánica, Facultad de Química, Universidad de la República General Flores 2124 CC1157 Montevideo Uruguay
- Graduate Program in Chemistry, Facultad de Química, Universidad de la República Uruguay
| | - Danilo Davyt
- Química Farmacéutica, Departamento de Química Orgánica, Facultad de Química, Universidad de la República General Flores 2124 CC1157 Montevideo Uruguay
| | - Gloria Serra
- Química Farmacéutica, Departamento de Química Orgánica, Facultad de Química, Universidad de la República General Flores 2124 CC1157 Montevideo Uruguay
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6
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Serra G, Posada L, Hojo H. On-resin synthesis of cyclic peptides via tandem N-to-S acyl migration and intramolecular thiol additive-free native chemical ligation. Chem Commun (Camb) 2020; 56:956-959. [DOI: 10.1039/c9cc07783a] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A novel methodology for the synthesis of cyclic peptides by on-resin intramolecular native chemical ligation (NCL) assisted by N-ethylcysteine using Fmoc/SPPS is described.
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Affiliation(s)
- Gloria Serra
- Química Farmacéutica
- Departamento de Química Orgánica
- Facultad de Química
- Universidad de la República
- Montevideo
| | - Laura Posada
- Química Farmacéutica
- Departamento de Química Orgánica
- Facultad de Química
- Universidad de la República
- Montevideo
| | - Hironobu Hojo
- Institute for Protein Research
- Osaka University
- Yamadaoka
- Suita-shi
- Japan
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7
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Fagundez C, Sellanes D, Peña S, Scarone L, Aguiar ACC, de Souza JO, Guido RVC, Stewart L, Yardley V, Ottilie S, Winzeler EA, Gamo FJ, Sanz LM, Serra GL. Synthesis, Profiling, and in Vivo Evaluation of Cyclopeptides Containing N-Methyl Amino Acids as Antiplasmodial Agents. ACS Med Chem Lett 2019; 10:137-141. [PMID: 30655961 DOI: 10.1021/acsmedchemlett.8b00543] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Accepted: 12/26/2018] [Indexed: 11/28/2022] Open
Abstract
Malaria is a major tropical disease where important needs are to mitigate symptoms and to prevent the establishment of infection. Cyclopeptides containing N-methyl amino acids with in vitro activity against erythrocytic forms as well as liver stage are presented. The synthesis, parasitological characterization, physicochemical properties, in vivo evaluation, and mice pharmacokinetics are described.
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Affiliation(s)
- Catherine Fagundez
- Laboratorio de Química Farmacéutica (DQO), Facultad de Química, Universidad de la República, Gral. Flores 2124, Montevideo, CP 11800, Uruguay
| | - Diver Sellanes
- Laboratorio de Química Farmacéutica (DQO), Facultad de Química, Universidad de la República, Gral. Flores 2124, Montevideo, CP 11800, Uruguay
| | - Stella Peña
- Laboratorio de Química Farmacéutica (DQO), Facultad de Química, Universidad de la República, Gral. Flores 2124, Montevideo, CP 11800, Uruguay
| | - Laura Scarone
- Laboratorio de Química Farmacéutica (DQO), Facultad de Química, Universidad de la República, Gral. Flores 2124, Montevideo, CP 11800, Uruguay
| | - Anna C. C. Aguiar
- Instituto de Física de São Carlos, Universidade de São Paulo, São Paulo, Brazil
| | - Juliana O. de Souza
- Instituto de Física de São Carlos, Universidade de São Paulo, São Paulo, Brazil
| | - Rafael V. C. Guido
- Instituto de Física de São Carlos, Universidade de São Paulo, São Paulo, Brazil
| | - Lindsay Stewart
- Faculty of Infectious & Tropical Disease, The London School of Hygiene & Tropical Medicine (LSHTM), Keppel Street, London, WC1E 7HT, U.K
| | - Vanessa Yardley
- Faculty of Infectious & Tropical Disease, The London School of Hygiene & Tropical Medicine (LSHTM), Keppel Street, London, WC1E 7HT, U.K
| | - Sabine Ottilie
- School of Medicine, University of California San Diego, La Jolla, California 92093, United States
| | - Elizabeth A. Winzeler
- School of Medicine, University of California San Diego, La Jolla, California 92093, United States
| | - Francisco-J. Gamo
- Diseases of the Developing World (DDW), Tres Cantos Medicines Development Campus, GlaxoSmithKline, Tres Cantos, Spain
| | - Laura M. Sanz
- Diseases of the Developing World (DDW), Tres Cantos Medicines Development Campus, GlaxoSmithKline, Tres Cantos, Spain
| | - Gloria L. Serra
- Laboratorio de Química Farmacéutica (DQO), Facultad de Química, Universidad de la República, Gral. Flores 2124, Montevideo, CP 11800, Uruguay
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8
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Fagundez C, Sellanes D, Serra G. Synthesis of Cyclic Peptides as Potential Anti-Malarials. ACS COMBINATORIAL SCIENCE 2018; 20:212-219. [PMID: 29446619 DOI: 10.1021/acscombsci.7b00154] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The results from the synthesis of peptides by Fmoc/SPPS on a 2-CTC resin and then lactamization in solution or solid phase for the preparation of cyclopeptides are presented. Both procedures allow the synthesis of the desired compounds in good to very good yield and with high cyclization efficiency for on-resin macrocyclization. In addition, the activities of the corresponding cyclopeptides against the chloroquine-resistant K1 strain of Plasmodium falciparum were evaluated. Cyclo-Cys(Trt)-Gly-Thr( tBu)-Gly-Cys(Trt)-Gly showed potent in vitro and selective activity against this parasite, EC50 = 28 nM.
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Affiliation(s)
- Catherine Fagundez
- Cátedra de Química Farmacéutica, (DQO), Facultad de Química, Universidad de la República, Gral. Flores 2124, CP 11800, Montevideo, Uruguay
| | - Diver Sellanes
- Cátedra de Química Farmacéutica, (DQO), Facultad de Química, Universidad de la República, Gral. Flores 2124, CP 11800, Montevideo, Uruguay
| | - Gloria Serra
- Cátedra de Química Farmacéutica, (DQO), Facultad de Química, Universidad de la República, Gral. Flores 2124, CP 11800, Montevideo, Uruguay
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9
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Bruni N, Stella B, Giraudo L, Della Pepa C, Gastaldi D, Dosio F. Nanostructured delivery systems with improved leishmanicidal activity: a critical review. Int J Nanomedicine 2017; 12:5289-5311. [PMID: 28794624 PMCID: PMC5536235 DOI: 10.2147/ijn.s140363] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Leishmaniasis is a vector-borne zoonotic disease caused by protozoan parasites of the genus Leishmania, which are responsible for numerous clinical manifestations, such as cutaneous, visceral, and mucocutaneous leishmaniasis, depending on the site of infection for particular species. These complexities threaten 350 million people in 98 countries worldwide. Amastigotes living within macrophage phagolysosomes are the principal target of antileishmanial treatment, but these are not an easy target as drugs must overcome major structural barriers. Furthermore, limitations on current therapy are related to efficacy, toxicity, and cost, as well as the length of treatment, which can increase parasitic resistance. Nanotechnology has emerged as an attractive alternative as conventional drugs delivered by nanosized carriers have improved bioavailability and reduced toxicity, together with other characteristics that help to relieve the burden of this disease. The significance of using colloidal carriers loaded with active agents derives from the physiological uptake route of intravenous administered nanosystems (the phagocyte system). Nanosystems are thus able to promote a high drug concentration in intracellular mononuclear phagocyte system (MPS)-infected cells. Moreover, the versatility of nanometric drug delivery systems for the deliberate transport of a range of molecules plays a pivotal role in the design of therapeutic strategies against leishmaniasis. This review discusses studies on nanocarriers that have greatly contributed to improving the efficacy of antileishmaniasis drugs, presenting a critical review and some suggestions for improving drug delivery.
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Affiliation(s)
| | - Barbara Stella
- Department of Drug Science and Technology, University of Turin, Turin, Italy
| | | | - Carlo Della Pepa
- Department of Drug Science and Technology, University of Turin, Turin, Italy
| | - Daniela Gastaldi
- Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy
| | - Franco Dosio
- Department of Drug Science and Technology, University of Turin, Turin, Italy
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10
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Valeur E, Guéret SM, Adihou H, Gopalakrishnan R, Lemurell M, Waldmann H, Grossmann TN, Plowright AT. New Modalities for Challenging Targets in Drug Discovery. Angew Chem Int Ed Engl 2017; 56:10294-10323. [PMID: 28186380 DOI: 10.1002/anie.201611914] [Citation(s) in RCA: 246] [Impact Index Per Article: 35.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 01/31/2017] [Indexed: 12/11/2022]
Abstract
Our ever-increasing understanding of biological systems is providing a range of exciting novel biological targets, whose modulation may enable novel therapeutic options for many diseases. These targets include protein-protein and protein-nucleic acid interactions, which are, however, often refractory to classical small-molecule approaches. Other types of molecules, or modalities, are therefore required to address these targets, which has led several academic research groups and pharmaceutical companies to increasingly use the concept of so-called "new modalities". This Review defines for the first time the scope of this term, which includes novel peptidic scaffolds, oligonucleotides, hybrids, molecular conjugates, as well as new uses of classical small molecules. We provide the most representative examples of these modalities to target large binding surface areas such as those found in protein-protein interactions and for biological processes at the center of cell regulation.
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Affiliation(s)
- Eric Valeur
- Cardiovascular and Metabolic Diseases, Innovative Medicines and Early Development Biotech Unit, AstraZeneca, Pepparedsleden 1, Mölndal, 431 83, Sweden
| | - Stéphanie M Guéret
- Cardiovascular and Metabolic Diseases, Innovative Medicines and Early Development Biotech Unit, AstraZeneca, Pepparedsleden 1, Mölndal, 431 83, Sweden.,AstraZeneca MPI Satellite Unit, Abteilung Chemische Biologie, Max Planck Institut für Molekulare Physiologie, Dortmund, Germany
| | - Hélène Adihou
- Cardiovascular and Metabolic Diseases, Innovative Medicines and Early Development Biotech Unit, AstraZeneca, Pepparedsleden 1, Mölndal, 431 83, Sweden.,AstraZeneca MPI Satellite Unit, Abteilung Chemische Biologie, Max Planck Institut für Molekulare Physiologie, Dortmund, Germany
| | - Ranganath Gopalakrishnan
- Cardiovascular and Metabolic Diseases, Innovative Medicines and Early Development Biotech Unit, AstraZeneca, Pepparedsleden 1, Mölndal, 431 83, Sweden.,AstraZeneca MPI Satellite Unit, Abteilung Chemische Biologie, Max Planck Institut für Molekulare Physiologie, Dortmund, Germany
| | - Malin Lemurell
- Cardiovascular and Metabolic Diseases, Innovative Medicines and Early Development Biotech Unit, AstraZeneca, Pepparedsleden 1, Mölndal, 431 83, Sweden
| | - Herbert Waldmann
- Abteilung Chemische Biologie, Max Planck Institut für Molekulare Physiologie, Dortmund, Germany.,Fakultät für Chemie und Chemische Biologie, Technische Universität Dortmund, Germany
| | - Tom N Grossmann
- Chemical Genomics Centre of the Max Planck Society, Dortmund, Germany.,Department of Chemistry & Pharmaceutical Sciences, VU University Amsterdam, The Netherlands
| | - Alleyn T Plowright
- Cardiovascular and Metabolic Diseases, Innovative Medicines and Early Development Biotech Unit, AstraZeneca, Pepparedsleden 1, Mölndal, 431 83, Sweden
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11
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Valeur E, Guéret SM, Adihou H, Gopalakrishnan R, Lemurell M, Waldmann H, Grossmann TN, Plowright AT. Neue Modalitäten für schwierige Zielstrukturen in der Wirkstoffentwicklung. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611914] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Eric Valeur
- Cardiovascular and Metabolic Diseases; Innovative Medicines and Early Development Biotech Unit; AstraZeneca; Pepparedsleden 1 Mölndal 431 83 Schweden
| | - Stéphanie M. Guéret
- Cardiovascular and Metabolic Diseases; Innovative Medicines and Early Development Biotech Unit; AstraZeneca; Pepparedsleden 1 Mölndal 431 83 Schweden
- AstraZeneca MPI Satellite Unit; Abteilung Chemische Biologie; Max-Planck-Institut für Molekulare Physiologie; Dortmund Deutschland
| | - Hélène Adihou
- Cardiovascular and Metabolic Diseases; Innovative Medicines and Early Development Biotech Unit; AstraZeneca; Pepparedsleden 1 Mölndal 431 83 Schweden
- AstraZeneca MPI Satellite Unit; Abteilung Chemische Biologie; Max-Planck-Institut für Molekulare Physiologie; Dortmund Deutschland
| | - Ranganath Gopalakrishnan
- Cardiovascular and Metabolic Diseases; Innovative Medicines and Early Development Biotech Unit; AstraZeneca; Pepparedsleden 1 Mölndal 431 83 Schweden
- AstraZeneca MPI Satellite Unit; Abteilung Chemische Biologie; Max-Planck-Institut für Molekulare Physiologie; Dortmund Deutschland
| | - Malin Lemurell
- Cardiovascular and Metabolic Diseases; Innovative Medicines and Early Development Biotech Unit; AstraZeneca; Pepparedsleden 1 Mölndal 431 83 Schweden
| | - Herbert Waldmann
- Abteilung Chemische Biologie; Max-Planck-Institut für Molekulare Physiologie; Dortmund Deutschland
- Fakultät für Chemie and Chemische Biologie; Technische Universität Dortmund; Deutschland
| | - Tom N. Grossmann
- Chemical Genomics Centre der Max-Planck-Gesellschaft; Dortmund Deutschland
- Department of Chemistry & Pharmaceutical Sciences; VU University Amsterdam; Niederlande
| | - Alleyn T. Plowright
- Cardiovascular and Metabolic Diseases; Innovative Medicines and Early Development Biotech Unit; AstraZeneca; Pepparedsleden 1 Mölndal 431 83 Schweden
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12
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Porta EOJ, Jäger SN, Nocito I, Lepesheva GI, Serra EC, Tekwani BL, Labadie GR. Antitrypanosomal and antileishmanial activity of prenyl-1,2,3-triazoles. MEDCHEMCOMM 2017; 8:1015-1021. [PMID: 28993794 DOI: 10.1039/c7md00008a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A series of prenyl 1,2,3-triazoles were prepared from isoprenyl azides and different alkynes. The dipolar cycloaddition reaction provided exclusively primary azide products as regioisomeric mixtures that were separated by column chromatography and fully characterized. Most of the compounds displayed antiparasitic activity against Trypanosoma cruzi and Leishmania donovani. The most active compounds were assayed as potential TcCYP51 inhibitors.
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Affiliation(s)
- Exequiel O J Porta
- Instituto de Química Rosario, UNR, CONICET, Suipacha 531, S2002LRK, Rosario, Argentina. Tel
| | - Sebastián N Jäger
- Instituto de Química Rosario, UNR, CONICET, Suipacha 531, S2002LRK, Rosario, Argentina. Tel
| | - Isabel Nocito
- Instituto de Biología Molecular y Celular (IBR-CONICET-UNR), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario. Suipacha 531, S2002LRK, Rosario, Argentina
| | - Galina I Lepesheva
- Department of Biochemistry, School of Medicine, Vanderbilt University, Nashville, TN37232, USA
| | - Esteban C Serra
- Instituto de Biología Molecular y Celular (IBR-CONICET-UNR), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario. Suipacha 531, S2002LRK, Rosario, Argentina
| | - Babu L Tekwani
- National Center for Natural Products Research & Department of Pharmacology, School of Pharmacy, University of Mississippi, University MS 38677, USA
| | - Guillermo R Labadie
- Instituto de Química Rosario, UNR, CONICET, Suipacha 531, S2002LRK, Rosario, Argentina. Tel.,Departamento de Química Orgánica, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, S2002LRK, Rosario, Argentina
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Sun L, Gao P, Zhan P, Liu X. Pyrazolo[1,5-a]pyrimidine-based macrocycles as novel HIV-1 inhibitors: a patent evaluation of WO2015123182. Expert Opin Ther Pat 2016; 26:979-86. [PMID: 27398994 DOI: 10.1080/13543776.2016.1210127] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The emergence of drug resistance in Combination Antiretroviral Therapy (cART) confirms a continuing need to investigate novel HIV-1 inhibitors with unexplored mechanisms of action. Recently, a series of pyrazolopyrimidine-based macrocyclic compounds were reported as inhibitors of HIV-1 replication disclosed in the patent WO2015123182. Most of the disclosed compounds possessed in vitro antiviral potency in single-digit nanomolar range, which were determined by MT-2 cell assay. Then, the structural diversity, pharmacophore similarity of HIV-1 IN-LEDGF/p75 inhibitors, and implications for drug design were analyzed. In the end of this article, a glimpse of some macrocycles as potent antiviral agents (drug candidates) was provided. Some strategies and technologies enabling macrocycle design were also described. We expect that further development of these macrocyclic compounds will offer new anti-HIV-1 drug candidates.
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Affiliation(s)
- Lin Sun
- a Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences , Shandong University , Jinan , P. R. China
| | - Ping Gao
- a Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences , Shandong University , Jinan , P. R. China
| | - Peng Zhan
- a Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences , Shandong University , Jinan , P. R. China
| | - Xinyong Liu
- a Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences , Shandong University , Jinan , P. R. China
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