1
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Xiao Y, Peng X, Shen J, Cui L, Lu S, Jia X, Li C, Li J. Cascade reaction of o-enoyl arylisocyanide and o-hydroxy aromatic aldimine: diastereoselective access to a polycyclic spirobenzoxazine chromeno[4,3- b]pyrrole derivative. Chem Commun (Camb) 2022; 58:10528-10531. [PMID: 36043872 DOI: 10.1039/d2cc02454c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A series of structurally unusual spirobenzoxazine chromeno[4,3-b]pyrrole derivatives have been efficiently constructed in a single operation from readily available starting materials. This domino transformation forms successively three new rings and provides a fast and economic strategy with excellent diastereoselectivity.
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Affiliation(s)
- Yao Xiao
- Department of Chemistry, College of Sciences & Institute for Sustainable Energy, Shanghai University, 99 Shangda Road, Shanghai 200444, P. R. China.
| | - Xin Peng
- Department of Chemistry, College of Sciences & Institute for Sustainable Energy, Shanghai University, 99 Shangda Road, Shanghai 200444, P. R. China.
| | - Jie Shen
- Department of Chemistry, College of Sciences & Institute for Sustainable Energy, Shanghai University, 99 Shangda Road, Shanghai 200444, P. R. China.
| | - Lei Cui
- Department of Chemistry, College of Sciences & Institute for Sustainable Energy, Shanghai University, 99 Shangda Road, Shanghai 200444, P. R. China.
| | - Shanya Lu
- Department of Chemistry, College of Sciences & Institute for Sustainable Energy, Shanghai University, 99 Shangda Road, Shanghai 200444, P. R. China.
| | - Xueshun Jia
- Department of Chemistry, College of Sciences & Institute for Sustainable Energy, Shanghai University, 99 Shangda Road, Shanghai 200444, P. R. China.
| | - Chunju Li
- Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, P. R. China
| | - Jian Li
- Department of Chemistry, College of Sciences & Institute for Sustainable Energy, Shanghai University, 99 Shangda Road, Shanghai 200444, P. R. China. .,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
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2
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Li J, Li D, Wang Z, Zhang H, Lu N, Cui L, Wu N, Li C. Diastereoselective Synthesis of Chromenopyrrole Derivative Enabled by Multicomponent Reaction of Isocyanide, Allenoate, and Phenol. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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3
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Ferreira TN, Brazil RP, McDowell MA, Cunha-Júnior EF, Costa PRR, Netto CD, Santos ECT, Genta FA. Effects of anti-Leishmania compounds in the behavior of the sand fly vector Lutzomyia longipalpis. PEST MANAGEMENT SCIENCE 2022; 78:2792-2805. [PMID: 35411662 DOI: 10.1002/ps.6900] [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: 10/14/2021] [Revised: 03/25/2022] [Accepted: 04/12/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Leishmaniasis is an infectious parasitic disease caused by pathogens of the genus Leishmania transmitted through the bite of adult female sand flies. To reduce case numbers, it is necessary to combine different control approaches, especially those aimed at the sand fly vectors. Innovative forms of control with the use of attractive sugar baits explored the fact that adult sand flies need to feed on sugars of plant origin. Leishmania parasites develop in the gut of sand flies, interacting with the sugars in the diet of adults. Recent studies have shown that sugar baits containing plant-derived compounds can reduce sand fly survival, the number of parasites per gut, and the percentage of infected sand flies. Several synthetic compounds produced from naphthoquinones and pterocarpans have anti-parasitic activity on Leishmania amazonensis and/or Leishmania infantum in cell culture. This work aimed to assess the inclusion of these compounds in sugar baits for blocking transmission, targeting the development of the Leishmania parasite inside the sand fly vector. RESULTS We evaluated the attractant or repellent properties of these compounds, as well as of the reference compound N,N'-diethyl-m-toluamide (DEET), in sugar baits. We also observed changes in feeding preference caused by these compounds, looking for anti-feeding or stimulation of ingestion. Pterocarpanquinone L4 and pentamidine showed attractant and repellent properties, respectively. CONCLUSION Based on the effects in feeding preference and intake volume, pterocarpanquinone L6, and the pyrazole-derived compound P8 were chosen as the most promising compounds for the future development of anti-Leishmania sugar baits. © 2022 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Tainá Neves Ferreira
- Laboratório de Bioquímica e Fisiologia de Insetos, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
| | - Reginaldo Peçanha Brazil
- Laboratório de Doenças Parasitárias, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
- Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular, Rio de Janeiro, Brazil
| | - Mary Ann McDowell
- Eck Institute for Global Health, Department of Biological Sciences, University of Notre Dame, Notre Dame, IN, USA
| | - Edézio Ferreira Cunha-Júnior
- Laboratório de Imunoparasitologia, Unidade Integrada de Pesquisa em Produtos Bioativos e Biociências, Universidade Federal do Rio de Janeiro, Campus UFRJ-Macaé, Macaé, Brazil
| | - Paulo Roberto Ribeiro Costa
- Laboratório de Química Bioorgânica, Instituto de Pesquisas de Produtos Naturais, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Chaquip Daher Netto
- Laboratório de Química, Universidade Federal do Rio de Janeiro, Macaé, Brazil
| | - Eduardo Caio Torres Santos
- Laboratório de Bioquímica de Tripanossomatídeos, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
| | - Fernando Ariel Genta
- Laboratório de Bioquímica e Fisiologia de Insetos, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
- Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular, Rio de Janeiro, Brazil
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4
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Moraes de Farias K, Rosa-Ribeiro R, Souza EE, Kobarg J, Banwell MG, de Brito Vieira Neto J, Leyenne Alves Sales S, Roberto Ribeiro Costa P, Cavalcante Dos Santos R, Vilaça Gaspar F, Gomes Barreto Junior A, da Conceição Ferreira Oliveira M, Odorico de Moraes M, Libardi M Furtado C, Carvalho HF, Pessoa C. The Isoflavanoid (+)-PTC Regulates Cell-Cycle Progression and Mitotic Spindle Assembly in a Prostate Cancer Cell Line. Chem Biodivers 2022; 19:e202200102. [PMID: 35362194 DOI: 10.1002/cbdv.202200102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 03/31/2022] [Indexed: 12/24/2022]
Abstract
Prostate cancer is the second most common malignancy in men and the development of effective therapeutic strategies remains challenging when more advanced, androgen-independent or insensitive forms are involved. Accordingly, we have evaluated, using flow cytometry, confocal microscopy and image analysis, the anti-proliferative effects of (+)-2,3,9-trimethoxypterocarpan [(+)-PTC, 1] on relevant human prostate cancer cells as well as its capacity to control mitosis within them. In particular, the studies reported herein reveal that (+)-PTC exerts anti-proliferative activity against the PC-3 cell lines by regulating cell-cycle progression with mitosis being arrested in the prophase or prometaphase. Furthermore, it emerges that treatment of the target cells with this compound results in the formation of monopolar spindles, disorganized centrosomes and extensively disrupted γ-tubulin distributions while centriole replication remains unaffected. Such effects suggest (+)-PTC should be considered as a possible therapy for androgen-insensitive/independent prostate cancer.
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Affiliation(s)
- Kaio Moraes de Farias
- Programa de Pós-Graduação em Biotecnologia - RENORBIO - Rede Nordeste de Biotecnologia, Federal University of Ceará - UFC, 60020-181, Fortaleza, CE, Brazil.,Núcleo de Pesquisa e Desenvolvimento de Medicamentos - NPDM, Federal University of Ceará - UFC, Fortaleza, CE 60430-275, Brazil
| | - Rafaela Rosa-Ribeiro
- Department of Structural and Functional Biology, Biology Institute, State University of Campinas, Campinas, 13083-970, SP, Brazil
| | - Edmarcia E Souza
- Faculdade de Ciências Farmacêuticas, State University of Campinas, Campinas, 13083-859, SP, Brazil
| | - Jörg Kobarg
- Faculdade de Ciências Farmacêuticas, State University of Campinas, Campinas, 13083-859, SP, Brazil
| | - Martin G Banwell
- Institute for Advanced and Applied Chemical Synthesis, Jinan University, Guangzhou, 510632, China
| | - José de Brito Vieira Neto
- Núcleo de Pesquisa e Desenvolvimento de Medicamentos - NPDM, Federal University of Ceará - UFC, Fortaleza, CE 60430-275, Brazil
| | - Sarah Leyenne Alves Sales
- Núcleo de Pesquisa e Desenvolvimento de Medicamentos - NPDM, Federal University of Ceará - UFC, Fortaleza, CE 60430-275, Brazil
| | - Paulo Roberto Ribeiro Costa
- Laboratório de Química Bioorgânica (LQB), Instituto de Pesquisas de Produtos Naturais, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-909, RJ, Brazil
| | - Rafael Cavalcante Dos Santos
- Engenharia de Processos Químicos e Bioquímicos (EPQB), Escola de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-909, RJ, Brazil
| | - Francisco Vilaça Gaspar
- Laboratório de Química Bioorgânica (LQB), Instituto de Pesquisas de Produtos Naturais, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-909, RJ, Brazil
| | - Amaro Gomes Barreto Junior
- Engenharia de Processos Químicos e Bioquímicos (EPQB), Escola de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-909, RJ, Brazil
| | | | - Manoel Odorico de Moraes
- Núcleo de Pesquisa e Desenvolvimento de Medicamentos - NPDM, Federal University of Ceará - UFC, Fortaleza, CE 60430-275, Brazil
| | - Cristiana Libardi M Furtado
- Núcleo de Pesquisa e Desenvolvimento de Medicamentos - NPDM, Federal University of Ceará - UFC, Fortaleza, CE 60430-275, Brazil.,Experimental Biology Center - NUBEX, University of Fortaleza, UNIFOR, Fortaleza, CE 60811-905, Brazil
| | - Hernandes F Carvalho
- Department of Structural and Functional Biology, Biology Institute, State University of Campinas, Campinas, 13083-970, SP, Brazil
| | - Claudia Pessoa
- Programa de Pós-Graduação em Biotecnologia - RENORBIO - Rede Nordeste de Biotecnologia, Federal University of Ceará - UFC, 60020-181, Fortaleza, CE, Brazil.,Núcleo de Pesquisa e Desenvolvimento de Medicamentos - NPDM, Federal University of Ceará - UFC, Fortaleza, CE 60430-275, Brazil
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5
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Bakthadoss M, Mushaf M, Agarwal V, Reddy TT, Sharada DS. Azomethine ylide cycloaddition of 1,3-dienyl esters: highly regio- and diastereoselective synthesis of functionalized pyrrolidinochromenes. Org Biomol Chem 2022; 20:778-782. [PMID: 35024708 DOI: 10.1039/d1ob02042k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient protocol for the synthesis of tricyclic pyrrolidinochromenes has been developed via an intramolecular 1,3-dipolar cycloaddition of azomethine ylides generated in situ from 1,3-dienyl ester tethered O-hydroxyarylaldehyde and glycine esters. The reaction is highly regio- and diastereoselective in nature and provided the potentially bioactive pyrrolidine fused tricyclic cycloadducts in excellent yields with wide substrate scope. Interestingly this reaction constructs two rings and four contiguous stereogenic centers in which one of them is an all carbon quaternary center in a unique fashion.
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Affiliation(s)
- Manickam Bakthadoss
- Department of Chemistry, Pondicherry University, Pondicherry - 605 014, India.
| | - Mohammad Mushaf
- Department of Chemistry, Pondicherry University, Pondicherry - 605 014, India.
| | - Vishal Agarwal
- Department of Chemistry, Pondicherry University, Pondicherry - 605 014, India.
| | | | - Duddu S Sharada
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Telangana-502285, India
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6
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Ni HQ, Cooper P, Engle KM. Recent advances in palladium-catalyzed (hetero)annulation of C[double bond, length as m-dash]C bonds with ambiphilic organo(pseudo)halides. Chem Commun (Camb) 2021; 57:7610-7624. [PMID: 34278397 DOI: 10.1039/d1cc02836g] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Palladium has proven to be effective in catalyzing the (hetero)annulation of C[double bond, length as m-dash]C bonds with ambiphilic organo(pseudo)halides. Through the employment of appropriate ambiphilic coupling partners, efficient annulation of a variety of allenes, 1,3-dienes, strained alkenes, styrenes, and other C[double bond, length as m-dash]C bond variants can be achieved to provide direct access to numerous useful hetero- and carbocyclic scaffolds. In this Feature Article, we summarize palladium-catalyzed (hetero)annulation methods reported since 2005 (spanning just over 15 years) and discuss outstanding challenges in this area of study.
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Affiliation(s)
- Hui-Qi Ni
- The Scripps Research Institute, Department of Chemistry, 10550 N. Torrey Pines Rd, La Jolla, California, USA.
| | - Phillippa Cooper
- The Scripps Research Institute, Department of Chemistry, 10550 N. Torrey Pines Rd, La Jolla, California, USA.
| | - Keary M Engle
- The Scripps Research Institute, Department of Chemistry, 10550 N. Torrey Pines Rd, La Jolla, California, USA.
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7
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Dantas-Pereira L, Cunha-Junior EF, Andrade-Neto VV, Bower JF, Jardim GAM, da Silva Júnior EN, Torres-Santos EC, Menna-Barreto RFS. Naphthoquinones and Derivatives for Chemotherapy: Perspectives and Limitations of their Anti-trypanosomatids Activities. Curr Pharm Des 2021; 27:1807-1824. [PMID: 33167829 DOI: 10.2174/1381612826666201109111802] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 08/23/2020] [Accepted: 08/31/2020] [Indexed: 11/22/2022]
Abstract
Chagas disease, Sleeping sickness and Leishmaniasis, caused by trypanosomatids Trypanosoma cruzi, Trypanosoma brucei and Leishmania spp., respectively, are considered neglected tropical diseases, and they especially affect impoverished populations in the developing world. The available chemotherapies are very limited, and a search for alternatives is still necessary. In folk medicine, natural naphthoquinones have been employed for the treatment of a great variety of illnesses, including parasitic infections. This review is focused on the anti-trypanosomatid activity and mechanistic analysis of naphthoquinones and derivatives. Among all the series of derivatives tested in vitro, naphthoquinone-derived 1,2,3-triazoles were very active on T. cruzi infective forms in blood bank conditions, as well as in amastigotes of Leishmania spp. naphthoquinones containing a CF3 on a phenyl amine ring inhibited T. brucei proliferation in the nanomolar range, and naphthopterocarpanquinones stood out for their activity on a range of Leishmania species. Some of these compounds showed a promising selectivity index (SI) (30 to 1900), supporting further analysis in animal models. Indeed, high toxicity to the host and inactivation by blood components are crucial obstacles to be overcome to use naphthoquinones and/or their derivatives for chemotherapy. Multidisciplinary initiatives embracing medicinal chemistry, bioinformatics, biochemistry, and molecular and cellular biology need to be encouraged to allow the optimization of these compounds. Large scale automated tests are pivotal for the efficiency of the screening step, and subsequent evaluation of both the mechanism of action in vitro and pharmacokinetics in vivo is essential for the development of a novel, specific and safe derivative, minimizing adverse effects.
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Affiliation(s)
- Luíza Dantas-Pereira
- Laboratorio de Biologia Celular, Instituto Oswaldo Cruz, Fundacao Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Edézio F Cunha-Junior
- Laboratorio de Bioquimica de Tripanosomatideos, Instituto Oswaldo Cruz, Fundacao Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Valter V Andrade-Neto
- Laboratorio de Bioquimica de Tripanosomatideos, Instituto Oswaldo Cruz, Fundacao Oswaldo Cruz, Rio de Janeiro, Brazil
| | - John F Bower
- School of Chemistry, University of Bristol, Bristol, United Kingdom
| | - Guilherme A M Jardim
- Departamento de Quimica, Instituto de Ciencias Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Eufrânio N da Silva Júnior
- Departamento de Quimica, Instituto de Ciencias Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Eduardo C Torres-Santos
- Laboratorio de Bioquimica de Tripanosomatideos, Instituto Oswaldo Cruz, Fundacao Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Rubem F S Menna-Barreto
- Laboratorio de Biologia Celular, Instituto Oswaldo Cruz, Fundacao Oswaldo Cruz, Rio de Janeiro, Brazil
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8
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Gaspar FV, Marques Ribeiro S, Barcellos JCF, Monteiro S, Domingos JLO, Claudia Dos Santos Luciano M, Paier CRK, Pessoa C, Costa PRR. New 5-carba-pterocarpans: Synthesis and preliminary antiproliferative activity on a panel of human cancer cells. Bioorg Chem 2021; 107:104584. [PMID: 33453646 DOI: 10.1016/j.bioorg.2020.104584] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 12/18/2020] [Accepted: 12/21/2020] [Indexed: 10/22/2022]
Abstract
Natural pterocarpans and synthetic 5-carba-pterocarpans are isosteres in which the oxygen atom at position 5 in the pyran-ring of pterocarpans is replaced by a methylene group. These 5-carba-analogues were obtained in good yields through the palladium-catalyzed oxyarylation of alcoxy-1,2-dihydronaphthalens with o-iodophenols in PEG-400. They were evaluated on human cancer cell lineages derived respectively from prostate tumor (PC3, IC50 = 11.84 μmol L-1, SI > 12)) and acute myeloid leukemia (HL-60, IC50 = 8.81 μmol L-1, SI > 16), highly incident cancer types presenting resistance against traditional chemotherapeutics. Compound 6c (LQB-492) was the most potent (IC50 = 3.85 μmol L-1, SI > 37) in SF-295 cell lineage (glioblastoma). Such findings suggest that 5-carba-pterocarpan can potentially be new hit compounds for further development of novel antiproliferative agents.
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Affiliation(s)
- Francisco V Gaspar
- Laboratório de Química Bioorgânica, Instituto de Pesquisas de Produtos Naturais, Universidade Federal do Rio de Janeiro, Centro de Ciências da Saúde, Bloco H, Ilha da Cidade Universitária, 21941-590 Rio de Janeiro, RJ, Brazil
| | - Soraya Marques Ribeiro
- Laboratório de Oncologia Experimental, Núcleo de Pesquisa e Desenvolvimento de Medicamentos, Universidade Federal do Ceará, Rodolfo Teófilo, 60430-275 Fortaleza, CE, Brasil
| | - Júlio C F Barcellos
- Laboratório de Química Bioorgânica, Instituto de Pesquisas de Produtos Naturais, Universidade Federal do Rio de Janeiro, Centro de Ciências da Saúde, Bloco H, Ilha da Cidade Universitária, 21941-590 Rio de Janeiro, RJ, Brazil
| | - Samuel Monteiro
- Laboratório de Química Bioorgânica, Instituto de Pesquisas de Produtos Naturais, Universidade Federal do Rio de Janeiro, Centro de Ciências da Saúde, Bloco H, Ilha da Cidade Universitária, 21941-590 Rio de Janeiro, RJ, Brazil
| | - Jorge L O Domingos
- Instituto de Química, Universidade do Estado do Rio de Janeiro, R.S. Francisco Xavier 524, Rio de Janeiro 20550-900, RJ, Brazil
| | - Maria Claudia Dos Santos Luciano
- Laboratório de Oncologia Experimental, Núcleo de Pesquisa e Desenvolvimento de Medicamentos, Universidade Federal do Ceará, Rodolfo Teófilo, 60430-275 Fortaleza, CE, Brasil
| | - Carlos R K Paier
- Laboratório de Oncologia Experimental, Núcleo de Pesquisa e Desenvolvimento de Medicamentos, Universidade Federal do Ceará, Rodolfo Teófilo, 60430-275 Fortaleza, CE, Brasil
| | - Cláudia Pessoa
- Laboratório de Oncologia Experimental, Núcleo de Pesquisa e Desenvolvimento de Medicamentos, Universidade Federal do Ceará, Rodolfo Teófilo, 60430-275 Fortaleza, CE, Brasil
| | - Paulo R R Costa
- Laboratório de Química Bioorgânica, Instituto de Pesquisas de Produtos Naturais, Universidade Federal do Rio de Janeiro, Centro de Ciências da Saúde, Bloco H, Ilha da Cidade Universitária, 21941-590 Rio de Janeiro, RJ, Brazil
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9
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Rani NV, Kunta R. Acetic acid promoted an efficient and eco-friendly one-pot synthesis of functionalized novel isoxazolyl amino chromenopyrrole derivatives in aqueous medium. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1846058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Nallamothu Vanaja Rani
- Department of Chemistry, Koneru Lakshmaiah Education Foundation, Guntur, Andhra Pradesh, India
| | - Ravindhranath Kunta
- Department of Chemistry, Koneru Lakshmaiah Education Foundation, Guntur, Andhra Pradesh, India
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10
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Srinivasulu V, Schilf P, Ibrahim S, Shehadi IA, Malik OG, Sieburth S, Khanfar MA, Hamad M, Abu-Yousef IA, Majdalawieh AF, Al-Tel TH. Divergent Strategy for Diastereocontrolled Synthesis of Small- and Medium-Ring Architectures. J Org Chem 2020; 85:10695-10708. [PMID: 32806094 DOI: 10.1021/acs.joc.0c01244] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Nitrogen and oxygen medium rings, in particular nine-membered rings, epitomize a unique area of chemical space that occurs in many natural products and biologically appealing compounds. The scarcity of 8- to 12-membered rings among clinically approved drugs is indicative of the difficulties associated with their synthesis, principally owing to the unfavorable entropy and transannular strain. We report here a scandium triflate-catalyzed reaction that allows for a modular access to a diverse collection of nine-membered ring heterocycles in a one-pot cascade and with complete diastereocontrol. This cascade features an intramolecular addition of an acyl group-derived enol to a α,β-unsaturated carbonyl moiety, leading to N- and O-derived medium-ring systems. Computational studies using the density functional theory support the proposed mechanism. Additionally, a one-pot cascade leading to hexacyclic chromeno[3',4':2,3]indolizino[8,7-b]indole architectures, with six fused rings and four contiguous chiral centers, is reported. This novel cascade features many concerted events, including the formation of two azomethine ylides, [3 + 2]-cycloaddition, 1,3-sigmatropic rearrangement, Michael addition, and Pictet-Spengler reaction among others. Phenotypic screening of the resulting oxazonine collection identified chemical probes that regulate mitochondrial membrane potential, adenosine 5'-triphosphate contents, and reactive oxygen species levels in hepatoma cells (Hepa1-6), a promising approach for targeting cancer and metabolic disorders.
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Affiliation(s)
- Vunnam Srinivasulu
- Sharjah Institute for Medical Research, University of Sharjah, P.O. Box 27272, Sharjah, UAE
| | - Paul Schilf
- Lübeck Institute of Experimental Dermatology, University of Lübeck, Ratzeburger Allee 160, Lübeck 23538, Germany
| | - Saleh Ibrahim
- Lübeck Institute of Experimental Dermatology, University of Lübeck, Ratzeburger Allee 160, Lübeck 23538, Germany
| | - Ihsan A Shehadi
- College of Science, Department of Chemistry, University of Sharjah, P.O. Box 27272, Sharjah, UAE
| | - Omar G Malik
- College of Science, Department of Chemistry, University of Sharjah, P.O. Box 27272, Sharjah, UAE
| | - Scott Sieburth
- Department of Chemistry, Temple University, 201 Beury Hall, Philadelphia, Pennsylvania 19122, United States
| | - Monther A Khanfar
- College of Science, Department of Chemistry, University of Sharjah, P.O. Box 27272, Sharjah, UAE.,Department of Chemistry, University of Jordan, Amman 11942, Jordan
| | - Mohamad Hamad
- College of Health Sciences, University of Sharjah, P.O. Box 27272, Sharjah, UAE
| | - Imad A Abu-Yousef
- Department of Biology, Chemistry and Environmental Sciences, American University of Sharjah, P.O. Box 26666, Sharjah, UAE
| | - Amin F Majdalawieh
- Department of Biology, Chemistry and Environmental Sciences, American University of Sharjah, P.O. Box 26666, Sharjah, UAE
| | - Taleb H Al-Tel
- Sharjah Institute for Medical Research, University of Sharjah, P.O. Box 27272, Sharjah, UAE
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11
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Dai Z, Zhu J, Su W, Zeng W, Liu Z, Chen M, Zhou Q. Phosphine-Catalyzed Stereoselective Tandem Annulation Reaction for the Synthesis of Chromeno[4,3-b]pyrroles. Org Lett 2020; 22:7008-7012. [DOI: 10.1021/acs.orglett.0c02558] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Zonghao Dai
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Jin Zhu
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Wenbo Su
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Wuxian Zeng
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Ziqi Liu
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Ming Chen
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Qingfa Zhou
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
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12
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Szappanos Á, Mándi A, Gulácsi K, Lisztes E, Tóth BI, Bíró T, Antus S, Kurtán T. Synthesis and antiproliferative activity of 6-naphthylpterocarpans. Org Biomol Chem 2020; 18:2148-2162. [PMID: 32134098 DOI: 10.1039/d0ob00110d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Heck-oxyarylation of racemic 2-(1-naphthyl)- and 2-(2-naphthyl)-2H-chromene derivatives were carried out resulting diastereoselectively in (6S*,6aR*,11aR*)-6-(1-naphthyl)- and 6-(2-naphthyl)-pterocarpans as major products and bridged (6R*,12R*)-6,12-methanodibenzo[d,g][1,3]dioxocine derivatives as minor products. Antiproliferative activity of two 6-naphthylpterocarpans was identified by MTT assay against A2780 and WM35 human cancer cell lines with low micromolar IC50 values. The measured 0.80 and 3.51 μM IC50 values of the (6S*,6aR*,11aR*)-6-(1-naphthyl)pterocarpan derivative with 8,9-methylenedioxy substitution represent the best activities in the pterocarpan family. Enantiomers of the pterocarpan and dioxocine derivatives and their chiral 2-naphthylchroman-4-one and 2-naphthyl-2H-chromene precursors were separated by HPLC using chiral stationary phase. HPLC-ECD spectra were recorded and absolute configuration and low-energy solution conformations were determined by TDDFT-ECD calculations. Characteristic ECD transitions of the separated enantiomers were correlated with their absolute configuration.
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Affiliation(s)
- Ádám Szappanos
- Department of Organic Chemistry, University of Debrecen, P. O. Box 400, 4002 Debrecen, Hungary.
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Biological Evaluation of Arylsemicarbazone Derivatives as Potential Anticancer Agents. Pharmaceuticals (Basel) 2019; 12:ph12040169. [PMID: 31744203 PMCID: PMC6958387 DOI: 10.3390/ph12040169] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 11/14/2019] [Accepted: 11/14/2019] [Indexed: 12/24/2022] Open
Abstract
Fourteen arylsemicarbazone derivatives were synthesized and evaluated in order to find agents with potential anticancer activity. Cytotoxic screening was performed against K562, HL-60, MOLT-4, HEp-2, NCI-H292, HT-29 and MCF-7 tumor cell lines. Compounds 3c and 4a were active against the tested cancer cell lines, being more cytotoxic for the HL-60 cell line with IC50 values of 13.08 μM and 11.38 μM, respectively. Regarding the protein kinase inhibition assay, 3c inhibited seven different kinases and 4a strongly inhibited the CK1δ/ε kinase. The studied kinases are involved in several cellular functions such as proliferation, migration, cell death and cell cycle progression. Additional analysis by flow cytometry revealed that 3c and 4a caused depolarization of the mitochondrial membrane, suggesting apoptosis mediated by the intrinsic pathway. Compound 3c induced arrest in G1 phase of the cell cycle on HL-60 cells, and in the annexin V assay approximately 50% of cells were in apoptosis at the highest concentration tested (26 μM). Compound 4a inhibited cell cycle by accumulation of abnormal postmitotic cells at G1 phase and induced DNA fragmentation at the highest concentration (22 μM).
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Verma K, Tailor YK, Khandelwal S, Rushell E, Agarwal M, Kumar M. Efficient and environmentally sustainable domino protocol for the synthesis of diversified spiroheterocycles with privileged heterocyclic substructures using bio-organic catalyst in aqueous medium. Mol Divers 2019; 24:1355-1365. [PMID: 31598819 DOI: 10.1007/s11030-019-09999-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Accepted: 09/30/2019] [Indexed: 11/26/2022]
Abstract
An efficient and environmentally sustainable synthetic protocol has been presented to synthesize structurally diverse spiroxindoles spiroannulated with indenopyrroloimidazoles, pyranopyrroloimidazoles, chromenopyrroloimidazoles, and imidazopyrrolopyrimidines involving three-component reaction of isatins, hydantoin, and β-diketones in the presence of green and sustainable bio-organic catalyst, β-amino acid, 2-aminoethanesulfonic acid (taurine), in aqueous media. The synthetic efficiency, operational simplicity, and reusability of catalyst make the present synthetic protocol cost effective, time efficient, and eco-friendly to synthesize molecules with structural diversity and molecular complexity and expected to contribute significantly not only to drug discovery research but also to pharmaceutical and medicinal chemistry.
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Affiliation(s)
- Kanchan Verma
- Department of Chemistry, University of Rajasthan, Jaipur, India
| | | | | | - Esha Rushell
- Department of Chemistry, University of Rajasthan, Jaipur, India
| | - Monu Agarwal
- Department of Chemistry, University of Rajasthan, Jaipur, India
| | - Mahendra Kumar
- Department of Chemistry, University of Rajasthan, Jaipur, India.
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da Silva Júnior EN, Jardim GAM, Jacob C, Dhawa U, Ackermann L, de Castro SL. Synthesis of quinones with highlighted biological applications: A critical update on the strategies towards bioactive compounds with emphasis on lapachones. Eur J Med Chem 2019; 179:863-915. [PMID: 31306817 DOI: 10.1016/j.ejmech.2019.06.056] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 06/19/2019] [Accepted: 06/19/2019] [Indexed: 01/04/2023]
Abstract
Naphthoquinones are of key importance in organic synthesis and medicinal chemistry. In the last few years, various synthetic routes have been developed to prepare bioactive compounds derived or based on lapachones. In this sense, this review is mainly focused on the synthetic aspects and strategies used for the design of these compounds on the basis of their biological activities for the development of drugs against the neglected diseases leishmaniases and Chagas disease and also cancer. Three strategies used to develop bioactive quinones are discussed and categorized: (i) C-ring modification, (ii) redox centre modification and (iii) A-ring modification. Framed within these strategies for the development of naphthoquinoidal compounds against T. cruzi. Leishmania and cancer, reactions including copper-catalyzed azide-alkyne cycloaddition (click chemistry), palladium-catalysed cross couplings, C-H activation reactions, Ullmann couplings and heterocyclisations reported up to July 2019 will be discussed. The aim of derivatisation is the generation of novel molecules that can potentially inhibit cellular organelles/processes, generate reactive oxygen species and increase lipophilicity to enhance penetration through the plasma membrane. Modified lapachones have emerged as promising prototypes for the development of drugs against leishmaniases, Chagas disease and cancer.
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Affiliation(s)
- Eufrânio N da Silva Júnior
- Laboratory of Synthetic and Heterocyclic Chemistry, Institute of Exact Sciences, Department of Chemistry, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, 31270-901, Brazil; Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany.
| | - Guilherme A M Jardim
- Laboratory of Synthetic and Heterocyclic Chemistry, Institute of Exact Sciences, Department of Chemistry, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, 31270-901, Brazil; Federal University of Santa Catarina, Florianópolis, Santa Catarina, 88040-900, Brazil
| | - Claus Jacob
- Division of Bioorganic Chemistry, School of Pharmacy, Saarland University, Campus B2 1, D-66123, Saarbruecken, Germany
| | - Uttam Dhawa
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany
| | - Solange L de Castro
- Laboratory of Cell Biology, Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Rio de Janeiro, 21045-900, Brazil
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Rumjanek VM, Maia RC, Salustiano EJ, Costa PR. Insights into the Biological Evaluation of Pterocarpanquinones and Carbapterocarpans with Anti-tumor Activity against MDR Leukemias. Anticancer Agents Med Chem 2019; 19:29-37. [DOI: 10.2174/1871520618666180420165128] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 03/17/2018] [Accepted: 03/20/2018] [Indexed: 12/13/2022]
Abstract
In an attempt to find anticancer agents that could overcome multidrug resistance (MDR), two new
classes of modified isoflavonoids were designed and synthesized, and their effectiveness evaluated against a
vast array of tumor cell lines. Pterocarpanquinone (LQB-118) and 11a-aza-5-carbapterocarpan (LQB-223) were
the most promising. LQB-118 induced cell death, in vitro, in the µM range, to a number of human cancer cell
lines as well as to fresh tumor cells obtained from patients with acute or chronic myeloid leukemia, independent
on whether they exhibit the MDR phenotype or not. Furthermore, leukemic cells were more sensitive to LQB-
118 compared to cells from solid tumors. Given to mice, in vivo, LQB-118 affected the growth of melanoma,
Ehrlich carcinoma and prostate cancer cells. Conversely, no general toxicity was observed in vivo, by biochemical,
hematological, anatomical or histological parameters and toxicity in vitro against normal cells was low. The
process involved in tumor cell death seemed to vary according to cell type. Apoptosis was studied by externalization
of phosphatidylserine, DNA fragmentation, caspase-3 activation, reduced expression of XIAP and survivin,
ER stress, cytosolic calcium increase and mitochondrial membrane depolarization. Autophagy was also
evaluated inhibiting caspase-9, with no effect observed in beclin 1, whereas pre-treatment with rapamycin increased
cytotoxicity induced by LQB-118. In addition, LQB-118 increased ROS, inhibited NFκB nuclear translocation
and secretion of TNF-α, modulated microRNAs miR-9 and miR-21 and modified the cell cycle. Despite
being less studied, the cytotoxic effect of the 11a-aza-5-carbapterocarpan LQB-223 was present against several
tumor cell lines, including those with the MDR phenotype.
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Affiliation(s)
- Vivian M. Rumjanek
- Laboratorio de Imunologia Tumoral, Instituto de Bioquimica Médica Leopoldo de Meis (IBqM), Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Raquel C. Maia
- Laboratorio de Hemato-Oncologia Celular e Molecular, Programa de Hemato-Oncologia Molecular, Instituto Nacional de Cancer (INCA), Rio de Janeiro, Brazil
| | - Eduardo J. Salustiano
- Laboratorio de Imunologia Tumoral, Instituto de Bioquimica Médica Leopoldo de Meis (IBqM), Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Paulo R.R. Costa
- Laboratorio de Quimica Bio-organica (LQB), Instituto de Pesquisas de Produtos Naturais, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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Strauch MA, Tomaz MA, Monteiro-Machado M, Cons BL, Patrão-Neto FC, Teixeira-Cruz JDM, Tavares-Henriques MDS, Nogueira-Souza PD, Gomes SLS, Costa PRR, Schaeffer E, da Silva AJM, Melo PA. Lapachol and synthetic derivatives: in vitro and in vivo activities against Bothrops snake venoms. PLoS One 2019; 14:e0211229. [PMID: 30689661 PMCID: PMC6349327 DOI: 10.1371/journal.pone.0211229] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 01/09/2019] [Indexed: 01/18/2023] Open
Abstract
Background It is known that local tissue injuries incurred by snakebites are quickly instilled causing extensive, irreversible, tissue destruction that may include loss of limb function or even amputation. Such injuries are not completely neutralized by the available antivenins, which in general are focused on halting systemic effects. Therefore it is prudent to investigate the potential antiophidic effects of natural and synthetic compounds, perhaps combining them with serum therapy, to potentially attenuate or eliminate the adverse local and systemic effects of snake venom. This study assessed a group of quinones that are widely distributed in nature and constitute an important class of natural products that exhibit a range of biological activities. Of these quinones, lapachol is one of the most important compounds, having been first isolated in 1882 from the bark of Tabebuia avellanedae. Methodology/Principal findings It was investigated the ability of lapachol and some new potential active analogues based on the 2-hydroxi-naphthoquinone scaffold to antagonize important activities of Bothrops venoms (Bothrops atrox and Bothrops jararaca) under different experimental protocols in vitro and in vivo. The bioassays used to test the compounds were: procoagulant, phospholipase A2, collagenase and proteolytic activities in vitro, venom-induced hemorrhage, edematogenic, and myotoxic effects in mice. Proteolytic and collagenase activities of Bothrops atrox venom were shown to be inhibited by lapachol and its analogues 3a, 3b, 3c, 3e. The inhibition of these enzymatic activities might help to explain the effects of the analogue 3a in vivo, which decreased skin hemorrhage induced by Bothrops venom. Lapachol and the synthetic analogues 3a and 3b did not inhibit the myotoxic activity induced by Bothrops atrox venom. The negative protective effect of these compounds against the myotoxicity can be partially explained by their lack of ability to effectively inhibit phospholipase A2 venom activity. Bothrops atrox venom also induced edema, which was significantly reduced by the analogue 3a. Conclusions This research using a natural quinone and some related synthetic quinone compounds has shown that they exhibit antivenom activity; especially the compound 3a. The data from 3a showed a decrease in inflammatory venom effects, presumably those that are metalloproteinase-derived. Its ability to counteract such snake venom activities contributes to the search for improving the management of venomous snakebites.
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Affiliation(s)
- Marcelo A. Strauch
- Laboratório de Farmacologia das Toxinas, Instituto de Ciências Biomédicas—Universidade Federal do Rio de Janeiro, Rio de Janeiro-RJ, Brazil
- Instituto Vital Brazil, Niterói-RJ, Brazil
- * E-mail: (MAS); (MAT); (PAM)
| | - Marcelo Amorim Tomaz
- Laboratório de Farmacologia das Toxinas, Instituto de Ciências Biomédicas—Universidade Federal do Rio de Janeiro, Rio de Janeiro-RJ, Brazil
- * E-mail: (MAS); (MAT); (PAM)
| | - Marcos Monteiro-Machado
- Laboratório de Farmacologia das Toxinas, Instituto de Ciências Biomédicas—Universidade Federal do Rio de Janeiro, Rio de Janeiro-RJ, Brazil
| | - Bruno Lemos Cons
- Laboratório de Farmacologia das Toxinas, Instituto de Ciências Biomédicas—Universidade Federal do Rio de Janeiro, Rio de Janeiro-RJ, Brazil
| | - Fernando Chagas Patrão-Neto
- Laboratório de Farmacologia das Toxinas, Instituto de Ciências Biomédicas—Universidade Federal do Rio de Janeiro, Rio de Janeiro-RJ, Brazil
| | - Jhonatha da Mota Teixeira-Cruz
- Laboratório de Farmacologia das Toxinas, Instituto de Ciências Biomédicas—Universidade Federal do Rio de Janeiro, Rio de Janeiro-RJ, Brazil
| | - Matheus da Silva Tavares-Henriques
- Laboratório de Farmacologia das Toxinas, Instituto de Ciências Biomédicas—Universidade Federal do Rio de Janeiro, Rio de Janeiro-RJ, Brazil
| | - Pâmella Dourila Nogueira-Souza
- Laboratório de Farmacologia das Toxinas, Instituto de Ciências Biomédicas—Universidade Federal do Rio de Janeiro, Rio de Janeiro-RJ, Brazil
| | - Sara L. S. Gomes
- Laboratório de Química Bioorgânica, Instituto de Pesquisas de Produtos Naturais Walter Mors-Universidade Federal do Rio de Janeiro, Rio de Janeiro-RJ, Brazil
- Laboratório de Catálise Orgânica, Instituto de Pesquisas de Produtos Naturais Walter Mors-Universidade Federal do Rio de Janeiro, Rio de Janeiro-RJ, Brazil
| | - Paulo R. R. Costa
- Laboratório de Catálise Orgânica, Instituto de Pesquisas de Produtos Naturais Walter Mors-Universidade Federal do Rio de Janeiro, Rio de Janeiro-RJ, Brazil
| | - Edgar Schaeffer
- Laboratório de Química Bioorgânica, Instituto de Pesquisas de Produtos Naturais Walter Mors-Universidade Federal do Rio de Janeiro, Rio de Janeiro-RJ, Brazil
| | - Alcides J. M. da Silva
- Laboratório de Química Bioorgânica, Instituto de Pesquisas de Produtos Naturais Walter Mors-Universidade Federal do Rio de Janeiro, Rio de Janeiro-RJ, Brazil
| | - Paulo A. Melo
- Laboratório de Farmacologia das Toxinas, Instituto de Ciências Biomédicas—Universidade Federal do Rio de Janeiro, Rio de Janeiro-RJ, Brazil
- * E-mail: (MAS); (MAT); (PAM)
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Faiões VDS, da Frota LCRM, Cunha-Junior EF, Barcellos JCF, Da Silva T, Netto CD, Da-Silva SAG, da Silva AJM, Costa PRR, Torres-Santos EC. Second-generation pterocarpanquinones: synthesis and antileishmanial activity. J Venom Anim Toxins Incl Trop Dis 2018; 24:35. [PMID: 30519257 PMCID: PMC6263544 DOI: 10.1186/s40409-018-0174-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 11/07/2018] [Indexed: 11/26/2022] Open
Abstract
Background Despite the development of new therapies for leishmaniasis, among the 200 countries or territories reporting to the WHO, 87 were identified as endemic for Tegumentary Leishmaniasis and 75 as endemic for Visceral Leishmaniasis. The identification of antileishmanial drug candidates is essential to fill the drug discovery pipeline for leishmaniasis. In the hit molecule LQB-118 selected, the first generation of pterocarpanquinones was effective and safe against experimental visceral and cutaneous leishmaniasis via oral delivery. In this paper, we report the synthesis and antileishmanial activity of the second generation of pterocarpanoquinones. Methods The second generation of pterocarpanquinones 2a-f was prepared through a palladium-catalyzed oxyarylation of dihydronaphtalen and chromens with iodolawsone, easily prepared by iodination of lawsone. The spectrum of antileishmanial activity was evaluated in promastigotes and intracellular amastigotes of L. amazonensis, L. braziliensis, and L. infantum. Toxicity was assessed in peritoneal macrophages and selective index calculated by CC50/IC50. Oxidative stress was measured by intracellular ROS levels and mitochondrial membrane potential in treated cells. Results In this work, we answered two pertinent questions about the structure of the first-generation pterocarpanquinones: the configuration and positions of rings B (pyran) and C (furan) and the presence of oxygen in the B ring. When rings B and C are exchanged, we noted an improvement of the activity against promastigotes and amastigotes of L. amazonensis and promastigotes of L. infantum. As to the oxygen in ring B of the new generation, we observed that the oxygenated compound 2b is approximately twice as active against L. braziliensis promastigotes than its deoxy derivative 2a. Another modification that improved the activity was the addition of the methylenedioxy group. A variation in the susceptibility among species was evident in the clinically relevant form of the parasite, the intracellular amastigote. L. amazonensis was the species most susceptible to novel derivatives, whilst L. infantum was resistant to most of them. The pterocarpanoquinones (2b and 2c) that possess the oxygen atom in ring B showed induction of increased ROS production. Conclusions The data presented indicate that the pterocarpanoquinones are promising compounds for the development of new leishmanicidal agents.
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Affiliation(s)
- Viviane Dos Santos Faiões
- 1Laboratório de Bioquímica de Tripanosomatídeos, Instituto Oswaldo Cruz, FIOCUZ, Av. Brasil, 4365, Pavilhao Leonidas Deane, sala 405A, Manguinhos, Rio de Janeiro, RJ 21040-900 Brazil
| | - Lívia C R M da Frota
- 2Instituto de Pesquisa de Produtos naturais, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ Brazil
| | - Edézio Ferreira Cunha-Junior
- 1Laboratório de Bioquímica de Tripanosomatídeos, Instituto Oswaldo Cruz, FIOCUZ, Av. Brasil, 4365, Pavilhao Leonidas Deane, sala 405A, Manguinhos, Rio de Janeiro, RJ 21040-900 Brazil
| | - Julio C F Barcellos
- 2Instituto de Pesquisa de Produtos naturais, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ Brazil
| | - Thayssa Da Silva
- 3Laboratório de Imunofarmacologia Parasitária, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ Brazil
| | - Chaquip Daher Netto
- 4Laboratório de Química, Universidade Federal do Rio de Janeiro, campus Professor Aloísio Teixeira, Macaé, RJ Brazil
| | | | - Alcides J M da Silva
- 2Instituto de Pesquisa de Produtos naturais, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ Brazil
| | - Paulo R R Costa
- 2Instituto de Pesquisa de Produtos naturais, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ Brazil
| | - Eduardo Caio Torres-Santos
- 1Laboratório de Bioquímica de Tripanosomatídeos, Instituto Oswaldo Cruz, FIOCUZ, Av. Brasil, 4365, Pavilhao Leonidas Deane, sala 405A, Manguinhos, Rio de Janeiro, RJ 21040-900 Brazil
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Mendes JA, Salustiano EJ, Pires CDS, Oliveira T, Barcellos JCF, Cifuentes JMC, Costa PRR, Rennó MN, Buarque CD. 11a-N-tosyl-5-carbapterocarpans: Synthesis, antineoplastic evaluation and in silico prediction of ADMETox properties. Bioorg Chem 2018; 80:585-590. [PMID: 30036814 DOI: 10.1016/j.bioorg.2018.07.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Revised: 06/28/2018] [Accepted: 07/01/2018] [Indexed: 11/19/2022]
Abstract
11a-N-tosyl-5-carbapterocarpans (5a-c and 6a-c), 9-N-tosyl-4,4a,9,9a-tetrahydro-3H-carbazole (7), 11a-N-tosyl-5-carbapterocarpen (8) analogues of LQB-223 (4a), were synthesized through palladium catalyzed azaarylation of substituted dihydronaphtalenes (14a-c) and cyclohexadiene (15), respectively, with N-tosyl-o-iodoaniline (11). In order to understand the role of the N-tosyl moiety for the pharmacological activity, the azacarbapterocarpen (9) was also synthesized by Fischer indol reaction. The structural requirements at the A and D-rings for the antineoplastic activity toward human leukemias and breast cancer cells were evaluated as well. Substitutions on the A-ring of 4a and analogues alter the effect on different breast cancer subtypes. On the other hand, A-ring is not essential for antileukemic activity since compound 7, which does not contain the A-ring, showed efficacy with high selectivity indices for drug-resistant leukemias. On the other hand, substitutions on the D-ring of 4a for fluorine or iodine did not improve the antileukemic activity. In silico studies concerning Lipinskís rule of five, ADMET properties and drug scores of those compounds were performed, indicating good physicochemical properties for all compounds, in special for compound 7.
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Affiliation(s)
- Joseane A Mendes
- Departamento de Química, Pontifícia Universidade Católica do Rio de Janeiro, Rua Marquês de São Vicente, 225, Gávea, Rio de Janeiro, RJ 22435-900, Brazil
| | - Eduardo J Salustiano
- Laboratório de Imunologia Tumoral, Instituto de Bioquímica Médica Leopoldo de Meis, Centro de Ciências da Saúde, Bloco H sala 003, Universidade Federal do Rio de Janeiro, RJ 21941-590, Brazil; Laboratório de Glicobiologia, Instituto de Biofísica Carlos Chagas Filho, Centro de Ciências da Saúde, Bloco C sala C1-042, Universidade Federal do Rio de Janeiro, RJ 21941-590, Brazil
| | - Carulini de S Pires
- Laboratório de Modelagem Molecular e Pesquisa em Ciências Farmacêuticas, Núcleo em Ecologia e Desenvolvimento Sócio-Ambiental de Macaé, Universidade Federal do Rio de Janeiro Campus Macaé Professor Aloísio Teixeira, Macaé, RJ 27965-045, Brazil
| | - Thaís Oliveira
- Laboratório de Bioquímica e Biologia Molecular do Câncer, Instituto de Bioquímica Médica Leopoldo de Meis, Centro de Ciências da Saúde, Bloco C sala E1-022, Universidade Federal do Rio de Janeiro, RJ 21941-590, Brazil
| | - Julio C F Barcellos
- Laboratório de Química Bioorgânica, Instituto de Pesquisas de Produtos Naturais, Centro de Ciências da Saúde, Bloco H, Universidade Federal do Rio de Janeiro, RJ 21941-590, Brazil
| | - Jhonny M C Cifuentes
- Departamento de Química, Pontifícia Universidade Católica do Rio de Janeiro, Rua Marquês de São Vicente, 225, Gávea, Rio de Janeiro, RJ 22435-900, Brazil
| | - Paulo R R Costa
- Laboratório de Química Bioorgânica, Instituto de Pesquisas de Produtos Naturais, Centro de Ciências da Saúde, Bloco H, Universidade Federal do Rio de Janeiro, RJ 21941-590, Brazil
| | - Magdalena N Rennó
- Laboratório de Modelagem Molecular e Pesquisa em Ciências Farmacêuticas, Núcleo em Ecologia e Desenvolvimento Sócio-Ambiental de Macaé, Universidade Federal do Rio de Janeiro Campus Macaé Professor Aloísio Teixeira, Macaé, RJ 27965-045, Brazil.
| | - Camilla D Buarque
- Departamento de Química, Pontifícia Universidade Católica do Rio de Janeiro, Rua Marquês de São Vicente, 225, Gávea, Rio de Janeiro, RJ 22435-900, Brazil.
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Quinonoid compounds via reactions of lawsone and 2-aminonaphthoquinone with α-bromonitroalkenes and nitroallylic acetates: Structural diversity by C-ring modification and cytotoxic evaluation against cancer cells. Eur J Med Chem 2018; 151:686-704. [DOI: 10.1016/j.ejmech.2018.03.079] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 03/27/2018] [Accepted: 03/29/2018] [Indexed: 12/17/2022]
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Srinivasulu V, Sieburth SM, El-Awady R, Kariem NM, Tarazi H, O'Connor MJ, Al-Tel TH. Post-Ugi Cascade Transformations for Accessing Diverse Chromenopyrrole Collections. Org Lett 2018; 20:836-839. [PMID: 29327591 DOI: 10.1021/acs.orglett.7b03986] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Employing a build/couple/pair strategy, a serendipitous one-pot protocol for the diastereoselective construction of diverse collections of chromenopyrroles is described. This methodology features an unprecedented five-step cascade including azomethine ylide generation followed by in situ intramolecular [3 + 2]-cycloaddition. Furthermore, this protocol was extended to access enantiopure chromenopyrroles using amino acids as chiral auxiliary. Moreover, postpairing reactions were employed to increase the diversity and complexity of our pilot compound collections.
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Affiliation(s)
| | - Scott McN Sieburth
- Department of Chemistry, Temple University , 201 Beury Hall, Philadelphia, Pennsylvania 19122, United States
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Azeredo NF, Souza FP, Demidoff FC, Netto CD, Resende JA, Franco RW, Colepicolo P, Ferreira AM, Fernandes C. New strategies for the synthesis of naphthoquinones employing Cu(II) complexes: Crystal structures and cytotoxicity. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.08.066] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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23
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Kitagaki S, Nakamura K, Kawabata C, Ishikawa A, Takenaga N, Yoshida K. Planar chiral [2.2]paracyclophane-based phosphine–phenols: use in enantioselective [3 + 2] annulations of allenoates and N-tosylimines. Org Biomol Chem 2018; 16:1770-1778. [DOI: 10.1039/c8ob00248g] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Planar chiral [2.2]paracyclophane-based phosphine–phenols efficiently catalyze the [3 + 2] annulation of N-tosylimines and allenoate.
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Interaction between bioactive compound 11a-N-tosyl-5-deoxi-pterocarpan (LQB-223) and Calf thymus DNA: Spectroscopic approach, electrophoresis and theoretical studies. Int J Biol Macromol 2017; 96:223-233. [DOI: 10.1016/j.ijbiomac.2016.12.044] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Revised: 12/09/2016] [Accepted: 12/09/2016] [Indexed: 12/24/2022]
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Pterocarpan scaffold: A natural lead molecule with diverse pharmacological properties. Eur J Med Chem 2017; 128:219-236. [PMID: 28189086 DOI: 10.1016/j.ejmech.2017.01.023] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 01/12/2017] [Accepted: 01/13/2017] [Indexed: 12/22/2022]
Abstract
Phytoalexins are substances produced by plants that act as potent inhibitors of pathogens. Pterocarpans are biologically active isoflavonoids most commonly found in the family Fabaceae that have the ability to act as phytoalexins. It is made up of a tetracyclic ring system possessing benzofuran-benzopyran. A very great number of pterocarpans have been isolated from natural sources and they are proved to have significant biological activities such as anti-microbial, anti-cancerous, anti-inflammatory and anti-malarial activities. Recently, pterocarpans gained lot of attention because of the broad range of anti-cancer activities in various cancer cell lines such as breast, leukemia, cervical, lung, colon and melanoma. Interestingly, pterocarpans exhibited inhibitory potency against many enzymes such as PTP1B, Neuraminidase, and α-glycosidase. In addition, they were shown to have anti-estrogenic and anti-diabetic activities. This review is a comprehensive inventory of the structures and sources of pterocarpans and it emphasizes on the biological evaluations of pterocarpans from various plant sources and their scope as a lead molecule.
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Silva TL, Ferreira FR, de Vasconcelos CC, da Silva RC, Lima DJDP, Costa PRR, Netto CD, Goulart MOF. Reactive Oxygen Species Release, Alkylating Ability, and DNA Interactions of a Pterocarpanquinone: A Test Case for Electrochemistry. ChemElectroChem 2016. [DOI: 10.1002/celc.201600504] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Thaissa L. Silva
- Instituto de Química e Biotecnologia; Universidade Federal de Alagoas; Maceió, AL, CEP 57072-970 Brazil
| | - Fabricia R. Ferreira
- Instituto de Química e Biotecnologia; Universidade Federal de Alagoas; Maceió, AL, CEP 57072-970 Brazil
| | - Camila C. de Vasconcelos
- Instituto de Química e Biotecnologia; Universidade Federal de Alagoas; Maceió, AL, CEP 57072-970 Brazil
| | | | - Dimas José da P. Lima
- Instituto de Química e Biotecnologia; Universidade Federal de Alagoas; Maceió, AL, CEP 57072-970 Brazil
| | - Paulo R. R. Costa
- Laboratório de Química Bioorgânica, Núcleo de Pesquisas de Produtos Naturais, Centro de Ciências da Saúde, Bloco H; Universidade Federal do Rio de Janeiro, RJ, CEP; 21941-590 Brazil
| | - Chaquip D. Netto
- Laboratório de Química, Campus Professor Aloísio Teixeira; Universidade Federal do Rio de Janeiro; Macaé, RJ, CEP 27930-560 Brazil
| | - Marília O. F. Goulart
- Instituto de Química e Biotecnologia; Universidade Federal de Alagoas; Maceió, AL, CEP 57072-970 Brazil
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Kakuda S, Ninomiya M, Tanaka K, Koketsu M. Synthesis of Pterocarpan Derivatives and their Inhibitory Effects against Microbial Growth and Biofilms. ChemistrySelect 2016. [DOI: 10.1002/slct.201600834] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Syuko Kakuda
- Department of Materials Science and Technology, Faculty of Engineering; Gifu University; 1-1 Yanagido Gifu 501-1193 Japan
| | - Masayuki Ninomiya
- Department of Materials Science and Technology, Faculty of Engineering; Gifu University; 1-1 Yanagido Gifu 501-1193 Japan
- Department of Chemistry and Biomolecular Science, Faculty of Engineering; Gifu University; 1-1 Yanagido Gifu 501-1193 Japan
| | - Kaori Tanaka
- Division of Anaerobe Research, Life Science Research Center; Gifu University; 1-1 Yanagido Gifu 501-1194 Japan
- United Graduate School of Drug Discovery and Medicinal Information Sciences; Gifu University; 1-1 Yanagido Gifu 501-1194 Japan
| | - Mamoru Koketsu
- Department of Materials Science and Technology, Faculty of Engineering; Gifu University; 1-1 Yanagido Gifu 501-1193 Japan
- Department of Chemistry and Biomolecular Science, Faculty of Engineering; Gifu University; 1-1 Yanagido Gifu 501-1193 Japan
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11a-N-Tosyl-5-deoxi-pterocarpan, LQB-223, a novel compound with potent antineoplastic activity toward breast cancer cells with different phenotypes. J Cancer Res Clin Oncol 2016; 142:2119-30. [PMID: 27520309 DOI: 10.1007/s00432-016-2212-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2016] [Accepted: 07/26/2016] [Indexed: 10/21/2022]
Abstract
UNLABELLED Multidrug resistance is the major obstacle for successful treatment of breast cancer, prompting the investigation of novel anticancer compounds. PURPOSE In this study, we tested whether LQB-223, an 11a-N-Tosyl-5-deoxi-pterocarpan newly synthesized compound, could be effective toward breast cancer cells. METHODS Human breast cell lines MCF-7, MDA-MB-231, HB4a and MCF-7 Dox(R) were used as models for this study. Cell culture, MTT and clonogenic assay, flow cytometry and Western blotting were performed. RESULTS The LQB-223 decreased cell viability, inhibited colony formation and induced an expressive G2/M arrest in breast cancer cells. There was an induction in p53 and p21(Cip1) protein levels following treatment of wild-type p53 MCF-7 cells, which was not observed in the mutant p53 MDA-MB-231 cell line, providing evidence that the compound might act to modulate the cell cycle regardless of p53 status. In addition, LQB-223 resulted in decreased procaspase levels and increased annexin V staining, suggesting that the apoptotic cascade is also triggered. Importantly, LQB-223 treatment was shown to be less cytotoxic to non-neoplastic breast cells than docetaxel and doxorubicin. Strikingly, exposure of doxorubicin-resistant MCF-7-Dox(R) cells to LQB-223 resulted in suppression of cell viability and proliferation in levels comparable to MCF-7. Of note, MCF-7-Dox(R) cells have an elevated expression of the P-glycoprotein efflux pump when compared to MCF-7. CONCLUSION Together, these results show that LQB-223 mediates cytotoxic effects in sensitive and resistant breast cancer cells, while presenting low toxicity to non-neoplastic cells. The new compound might represent a potential strategy to induce toxicity in breast cancer cells, especially chemoresistant cells.
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Preclinical Studies Evaluating Subacute Toxicity and Therapeutic Efficacy of LQB-118 in Experimental Visceral Leishmaniasis. Antimicrob Agents Chemother 2016; 60:3794-801. [PMID: 27067332 DOI: 10.1128/aac.01787-15] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2015] [Accepted: 04/06/2016] [Indexed: 12/11/2022] Open
Abstract
Visceral leishmaniasis (VL) is the most severe form of leishmaniasis and is the second major cause of death by parasites, after malaria. The arsenal of drugs against leishmaniasis is small, and each has a disadvantage in terms of toxicity, efficacy, price, or treatment regimen. Our group has focused on studying new drug candidates as alternatives to current treatments. The pterocarpanquinone LQB-118 was designed and synthesized based on molecular hybridization, and it exhibited antiprotozoal and anti-leukemic cell line activities. Our previous work demonstrated that LQB-118 was an effective treatment for experimental cutaneous leishmaniasis. In this study, we observed that treatment with 10 mg/kg of body weight/day LQB-118 orally inhibited the development of hepatosplenomegaly with a 99% reduction in parasite load. An in vivo toxicological analysis showed no change in the clinical, biochemical, or hematological parameters. Histologically, all of the analyzed organs were normal, with the exception of the liver, where focal points of necrosis with leukocytic infiltration were observed at treatment doses 5 times higher than the therapeutic dose; however, these changes were not accompanied by an increase in transaminases. Our findings indicate that LQB-118 is effective at treating different clinical forms of leishmaniasis and presents no relevant signs of toxicity at therapeutic doses; thus, this framework is demonstrated suitable for developing promising drug candidates for the oral treatment of leishmaniasis.
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Salustiano EJ, Dumas ML, Silva-Santos GG, Netto CD, Costa PRR, Rumjanek VM. In vitro and in vivo antineoplastic and immunological effects of pterocarpanquinone LQB-118. Invest New Drugs 2016; 34:541-51. [PMID: 27189479 DOI: 10.1007/s10637-016-0359-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 05/11/2016] [Indexed: 11/29/2022]
Abstract
Cancer is a malignancy of worldwide prevalence, and although new therapeutic strategies are under investigation, patients still resort to reductive or palliative chemotherapy. Side effects are a great concern, since treatment can render patients susceptible to infections or secondary cancers. Thus, design of safer chemotherapeutic drugs must consider the risk of immunotoxicity. Pterocarpans are natural isoflavones that possess immunomodulatory and antineoplastic properties. Ubiquitous in nature, quinones are present in chemotherapeutic drugs such as doxorubicin and mitoxantrone. Our group has patented a hybrid molecule, the pterocarpanquinone LQB-118, and demonstrated its antineoplastic effect in vitro. In this report we describe its antineoplastic effect in vivo and assess its toxicity toward the immune system. Treated mice presented no changes in weight of primary and secondary organs of the immune system nor their cellular composition. Immunophenotyping showed that treatment increased CD4(+) thymocytes and proportionally reduced the CD4(+)CD8(+) subpopulation in the thymus. No significant changes were observed in T CD8(+) peripheral lymphocytes nor was the activation of fresh T cells affected after treatment. LQB-118 induced apoptosis in murine tumor cells in vitro, being synergistic with the autophagy promoter rapamycin. Furthermore, treatment significantly reduced ascites or solid Ehrlich and B16F10 melanoma growth in vivo, and ameliorated side effects such as cachexia. Based on its favorable preclinical profile and considering previous results obtained in vitro, this drug emerges as a promising candidate for further development.
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Affiliation(s)
- Eduardo J Salustiano
- Laboratory of Tumor Immunology, Leopoldo de Meis Institute of Medical Biochemistry (IBqM), Federal University of Rio de Janeiro (UFRJ), Avenida Carlos Chagas Filho 373, Bloco H, 2° andar sala 003 Cidade Universitária, Rio de Janeiro, RJ, 21941-590, Brazil. .,Laboratory of Bioorganic Chemistry, Institute for Natural Products Research, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
| | - Matheus L Dumas
- Laboratory of Tumor Immunology, Leopoldo de Meis Institute of Medical Biochemistry (IBqM), Federal University of Rio de Janeiro (UFRJ), Avenida Carlos Chagas Filho 373, Bloco H, 2° andar sala 003 Cidade Universitária, Rio de Janeiro, RJ, 21941-590, Brazil
| | - Gabriel G Silva-Santos
- Laboratory of Tumor Immunology, Leopoldo de Meis Institute of Medical Biochemistry (IBqM), Federal University of Rio de Janeiro (UFRJ), Avenida Carlos Chagas Filho 373, Bloco H, 2° andar sala 003 Cidade Universitária, Rio de Janeiro, RJ, 21941-590, Brazil
| | - Chaquip D Netto
- Laboratory of Bioorganic Chemistry, Institute for Natural Products Research, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,Laboratory of Chemistry, Macaé Institute of Metrology and Technology, Federal University of Rio de Janeiro, Professor Aloísio Teixeira Macaé Campus, Macaé, RJ, Brazil
| | - Paulo R R Costa
- Laboratory of Bioorganic Chemistry, Institute for Natural Products Research, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Vivian M Rumjanek
- Laboratory of Tumor Immunology, Leopoldo de Meis Institute of Medical Biochemistry (IBqM), Federal University of Rio de Janeiro (UFRJ), Avenida Carlos Chagas Filho 373, Bloco H, 2° andar sala 003 Cidade Universitária, Rio de Janeiro, RJ, 21941-590, Brazil
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Arichi N, Yamada KI, Yamaoka Y, Takasu K. An Arylative Ring Expansion Cascade of Fused Cyclobutenes via Short-Lived Intermediates with Planar Chirality. J Am Chem Soc 2015; 137:9579-82. [DOI: 10.1021/jacs.5b06576] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Norihito Arichi
- Graduate
School of Pharmaceutical
Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Ken-ichi Yamada
- Graduate
School of Pharmaceutical
Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Yousuke Yamaoka
- Graduate
School of Pharmaceutical
Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Kiyosei Takasu
- Graduate
School of Pharmaceutical
Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
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Costa PRR, Sansano JM, Cossío U, Barcellos JCF, Dias AG, Nájera C, Arrieta A, de Cózar A, Cossío FP. Synthesis of Chromen[4,3-b]pyrrolidines by Intramolecular 1,3-Dipolar Cycloadditions of Azomethine Ylides: An Experimental and Computational Assessment of the Origin of Stereocontrol. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500434] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Sangshetti JN, Kalam Khan FA, Kulkarni AA, Arote R, Patil RH. Antileishmanial drug discovery: comprehensive review of the last 10 years. RSC Adv 2015. [DOI: 10.1039/c5ra02669e] [Citation(s) in RCA: 101] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
This review covers the current aspects of leishmaniasis including marketed drugs, new antileishmanial agents, and possible drug targets of antileishmanial agents.
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Affiliation(s)
| | | | | | - Rohidas Arote
- Department of Molecular Genetics
- School of Dentistry
- Seoul National University
- Seoul
- Republic of Korea
| | - Rajendra H. Patil
- Department of Biotechnology
- Savitribai Phule Pune University
- Pune 411007
- India
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Hussain H, Al-Harrasi A, Al-Rawahi A, Green IR, Gibbons S. Fruitful decade for antileishmanial compounds from 2002 to late 2011. Chem Rev 2014; 114:10369-428. [PMID: 25253511 DOI: 10.1021/cr400552x] [Citation(s) in RCA: 108] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Hidayat Hussain
- UoN Chair of Oman's Medicinal Plants and Marine Natural Products, University of Nizwa , P.O. Box 33, Birkat Al Mauz, Nizwa 616, Sultanate of Oman
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Buarque CD, Salustiano EJ, Fraga KC, Alves BR, Costa PR. 11a-N-Tosyl-5-deoxi-pterocarpan (LQB-223), a promising prototype for targeting MDR leukemia cell lines. Eur J Med Chem 2014; 78:190-7. [DOI: 10.1016/j.ejmech.2014.03.039] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2013] [Revised: 03/13/2014] [Accepted: 03/13/2014] [Indexed: 01/01/2023]
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Cortopassi WA, Penna-Coutinho J, Aguiar ACC, Pimentel AS, Buarque CD, Costa PRR, Alves BRM, França TCC, Krettli AU. Theoretical and experimental studies of new modified isoflavonoids as potential inhibitors of topoisomerase I from Plasmodium falciparum. PLoS One 2014; 9:e91191. [PMID: 24651068 PMCID: PMC3961230 DOI: 10.1371/journal.pone.0091191] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Accepted: 02/10/2014] [Indexed: 01/27/2023] Open
Abstract
DNA topoisomerase I from Plasmodium falciparum (PfTopoI), a potential selective target for chemotherapy and drug development against malaria, is used here, together with human Topo I (HssTopoI), for docking, molecular dynamics (MD) studies and experimental assays. Six synthetic isoflavonoid derivatives and the known PfTopoI inhibitors camptothecin and topotecan were evaluated in parallel. Theoretical results suggest that these compounds dock in the binding site of camptothecin and topotecan inside both enzymes and that LQB223 binds selectively in PfTopoI. In vitro tests against P. falciparum blood parasites corroborated the theoretical findings. The selectivity index (SI) of LQB223 ≥ 98 suggests that this molecule is the most promising in the group of compounds tested. In vivo experiments in mice infected with P. berghei showed that LQB223 has an antimalarial activity similar to that of chloroquine.
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Affiliation(s)
- Wilian A. Cortopassi
- Departamento de Química, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, Brazil
- Laboratório de Modelagem Aplicada a Defesa Química e Biológica, Instituto Militar de Engenharia, Rio de Janeiro, Brazil
| | - Julia Penna-Coutinho
- Laboratório de Malária, Centro de Pesquisas René Rachou, Fundação Instituto Oswaldo Cruz, Belo Horizonte, Brazil
- Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Anna C. C. Aguiar
- Laboratório de Malária, Centro de Pesquisas René Rachou, Fundação Instituto Oswaldo Cruz, Belo Horizonte, Brazil
- Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - André S. Pimentel
- Departamento de Química, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Camilla D. Buarque
- Departamento de Química, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Paulo R. R. Costa
- Laboratório de Química Bioorgânica, Núcleo de Pesquisas de Produtos Naturais, Rio de Janeiro, Brazil
| | - Bruna R. M. Alves
- Departamento de Química, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Tanos C. C. França
- Laboratório de Modelagem Aplicada a Defesa Química e Biológica, Instituto Militar de Engenharia, Rio de Janeiro, Brazil
| | - Antoniana U. Krettli
- Laboratório de Malária, Centro de Pesquisas René Rachou, Fundação Instituto Oswaldo Cruz, Belo Horizonte, Brazil
- Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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de Castro SL, Emery FS, da Silva Júnior EN. Synthesis of quinoidal molecules: strategies towards bioactive compounds with an emphasis on lapachones. Eur J Med Chem 2013; 69:678-700. [PMID: 24095760 DOI: 10.1016/j.ejmech.2013.07.057] [Citation(s) in RCA: 90] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2013] [Revised: 07/26/2013] [Accepted: 07/30/2013] [Indexed: 12/28/2022]
Abstract
Naphthoquinoidal compounds are of great interest in medicinal chemistry. In recent years, several synthetic routes have been developed to obtain bioactive molecules derived from lapachones. In this mini-review, we focus on the synthetic aspects and strategies used to design these compounds and on the biological activities of these substances for the development of drugs against the neglected diseases leishmaniasis and Chagas disease as well as malaria, tuberculosis and cancer. Three strategies used to develop bioactive naphthoquinoidal compounds are discussed: (i) C-ring modification, (ii) redox centre modification and (iii) A-ring modification. Among these strategies, reactions such as copper-catalysed azide-alkyne cycloaddition (click chemistry), palladium-catalysed cross couplings, and heterocyclisations will be discussed for the development of naphthoquinoidal compounds against Trypanosoma cruzi, Leishmania and cancer. The aim of derivatisation is the generation of novel molecules that inhibit cellular organelles/processes, generate reactive oxygen species (ROS) and increase lipophilicity to enhance penetration through the plasma membrane. Modified lapachones have emerged as promising prototypes for the development of drugs against neglected diseases and cancer.
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Affiliation(s)
- Solange L de Castro
- Laboratório de Biologia Celular, Instituto Oswaldo Cruz, FIOCRUZ, Av. Brasil 4365, Manguinhos, 21045-900 Rio de Janeiro, RJ, Brazil
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Jacquemot G, Ménard MA, L'Homme C, Canesi S. Oxidative cycloaddition and cross-coupling processes on unactivated benzene derivatives. Chem Sci 2013. [DOI: 10.1039/c2sc22318j] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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