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Ma YY, Pu G, Liu HY, Yao S, Kong GH, Wu YP, Li YK, Wang WG, Zhou M, Hu QF, Yang FX. Indole alkaloids isolated from the Nicotiana tabacum-derived Aspergillus fumigatus 0338 as potential inhibitors for tobacco powdery mildew and their mode of actions. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2024; 200:105814. [PMID: 38582586 DOI: 10.1016/j.pestbp.2024.105814] [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: 12/14/2023] [Revised: 02/02/2024] [Accepted: 02/03/2024] [Indexed: 04/08/2024]
Abstract
To explore active natural products against tobacco powdery mildew caused by Golovinomyces cichoracearum, an extract from the fermentation of endophytic Aspergillus fumigatus 0338 was investigated. The mechanisms of action for active compounds were also studied in detail. As a result, 14 indole alkaloid derivatives were isolated, with seven being newly discovered (1-7) and the remaining seven previously described (8-14). Notably, compounds 1-3 are rare linearly fused 6/6/5 tricyclic prenylated indole alkaloids, with asperversiamide J being the only known natural product of this kind. The isopentenyl substitutions at the 5-position in compounds 4 and 5 are also rare, with only compounds 1-(5-prenyl-1H-indol-3-yl)-propan-2-one (8) and 1-(6-methoxy-5-prenyl-1H-indol3-yl)-propan-2-one currently available. In addition, compounds 6 and 7 are new framework indole alkaloid derivatives bearing a 6-methyl-1,7-dihydro-2H-azepin-2-one ring. The purified compounds were evaluated for their activity against G. cichoracearum, and the results revealed that compounds 7 and 9 demonstrated obvious anti-G. cichoracearum activities with an inhibition rate of 82.6% and 85.2%, respectively, at a concentration of 250 μg/mL, these rates were better than that of the positive control agent, carbendazim (78.6%). The protective and curative effects of compounds 7 and 9 were also better than that of positive control, at the same concentration. Moreover, the mechanistic study showed that treatment with compound 9 significantly increased the structural tightness of tobacco leaves and directly affect the conidiospores of G. cichoracearum, thereby enhancing resistance. Compounds 7 and 9 could also induce systemic acquired resistance (SAR), directly regulating the expression of defense enzymes, defense genes, and plant semaphorins, which may further contribute to increased plant resistance. Based on the activity experiments and molecular dockings, the indole core structure may be the foundation of these compounds' anti-G. cichoracearum activity. Among them, the indole derivative parent structures of compounds 6, 7, and 9 exhibit strong effects. Moreover, the methoxy substitution in compound 7 can enhance their activity. By isolating and structurally identifying the above indole alkaloids, new candidates for anti-powdery mildew chemical screening were discovered, which could enhance the utilization of N. tabacum-derived fungi in pesticide development.
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Affiliation(s)
- Yue-Yu Ma
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming 650500, PR China; Key Laboratory of Tropical Plant Resource and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming 650223, PR China
| | - Gui Pu
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming 650500, PR China
| | - Hua-Yin Liu
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming 650500, PR China
| | - Sui Yao
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming 650500, PR China
| | - Guang-Hui Kong
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming 650031, PR China
| | - Yu-Ping Wu
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming 650031, PR China
| | - Yin-Ke Li
- Key Laboratory of Tropical Plant Resource and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming 650223, PR China; Yunnan Academy of Tobacco Agricultural Sciences, Kunming 650031, PR China
| | - Wei-Guang Wang
- Key Laboratory of Tropical Plant Resource and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming 650223, PR China
| | - Min Zhou
- Key Laboratory of Tropical Plant Resource and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming 650223, PR China
| | - Qiu-Fen Hu
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming 650500, PR China; Key Laboratory of Tropical Plant Resource and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming 650223, PR China.
| | - Feng-Xian Yang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming 650500, PR China; Key Laboratory of Tropical Plant Resource and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming 650223, PR China.
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Xu H, Wang B, Li FY, Huang DW, Xiao Y, Wang JY. Access to 5-Methyl-5 H-naphtho[2,3- c]carbazole-8,13-dione Derivatives via Copper-Catalyzed Intramolecular Isomerization. J Org Chem 2023. [PMID: 38048162 DOI: 10.1021/acs.joc.3c01667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/06/2023]
Abstract
Carbazole-fused quinones are important compounds for their potential pharmacological activities and photophysical properties. Here, a novel copper-catalyzed intramolecular isomerization process to access a new class of naphtho[2,3-c]carbazole-8,13-dione derivatives via a furan isomerization/γ-H elimination and β-C elimination/6π-electrocyclization/aromatization cascade is reported. Furthermore, the preliminary photophysical properties of the functional 5-methyl-5H-naphtho[2,3-c]carbazole-8,13-dione derivatives have been studied.
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Affiliation(s)
- Hong Xu
- Asymmetric Synthesis and Chiraltechnology Key Laboratory of Sichuan Province, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Bei Wang
- Department of Chemistry, Xihua University, Chengdu 610039, P. R. China
| | - Fu-Yu Li
- Asymmetric Synthesis and Chiraltechnology Key Laboratory of Sichuan Province, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Dong-Wei Huang
- Department of Chemistry, Xihua University, Chengdu 610039, P. R. China
| | - Yao Xiao
- Department of Chemistry, Xihua University, Chengdu 610039, P. R. China
| | - Ji-Yu Wang
- Asymmetric Synthesis and Chiraltechnology Key Laboratory of Sichuan Province, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, P. R. China
- Department of Chemistry, Xihua University, Chengdu 610039, P. R. China
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Allen LAT, Natho P. Trends in carbazole synthesis - an update (2013-2023). Org Biomol Chem 2023; 21:8956-8974. [PMID: 37906471 DOI: 10.1039/d3ob01605f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
The interest of scientists in the carbazole core has risen steadily over the last 30 years, particularly over the last decade given its presence in several active pharmaceutical ingredients, functional materials and a wide range of biologically active natural products. The continuous development of more efficient, more (regio-)selective and "greener" methodologies to access the carbazole core is thus imperative. This review compares and evaluates synthetic strategies towards the carbazole core that have been reported since 2013, with a focus on their applicability towards the total synthesis of carbazole-containing natural products.
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Affiliation(s)
- Lewis A T Allen
- CheMastery, Paper Yard, 11a Quebec Way, London, SE16 7LG, UK
| | - Philipp Natho
- FLAME-Lab, Flow Chemistry and Microreactor Technology Laboratory, Department of Pharmacy-Drug Sciences, University of Bari "A. Moro", Via E. Orabona 4, 70125 Bari, Italy
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Mathada BS, Somappa SB. An insight into the recent developments in anti-infective potential of indole and associated hybrids. J Mol Struct 2022; 1261:132808. [PMID: 35291692 PMCID: PMC8913251 DOI: 10.1016/j.molstruc.2022.132808] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 02/16/2022] [Accepted: 03/09/2022] [Indexed: 12/16/2022]
Abstract
Prevention, accurate diagnosis, and effective treatment of infections are the main challenges in the overall management of infectious diseases. The best example is the ongoing SARs-COV-2(COVID-19) pandemic; the entire world is extremely worried about at present. Interestingly, heterocyclic moieties provide an ideal scaffold on which suitable pharmacophores can be designed to construct novel drugs. Indoles are amongst the most essential class of heteroaromatics in medicinal chemistry, which are ubiquitous across natural sources. The aforesaid derivatives have become invaluable scaffolds because of their wide spectrum therapeutic applications. Therefore, many researchers are focused on the design and synthesis of indole and associated hybrids of biological relevance. Hence, in the present review, we concisely discuss the indole containing natural sources, marketed drugs, clinical candidates, and their biological activities like antibacterial, antifungal, anti-TB, antiviral, antimalarial, and anti-leishmanial activities. The structure-activity relationships study of indole derivatives is also presented for a better understanding of the identified structures. The literature data presented for the anti-infective agents herein covers largely for the last twelve years.
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Affiliation(s)
| | - Sasidhar B Somappa
- Organic Chemistry Section, Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram 695 019, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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Lysosomal Exocytosis of Olivacine on the Way to Explain Drug Resistance in Cancer Cells. Int J Mol Sci 2022; 23:ijms23116119. [PMID: 35682799 PMCID: PMC9181543 DOI: 10.3390/ijms23116119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/22/2022] [Accepted: 05/26/2022] [Indexed: 02/01/2023] Open
Abstract
Ellipticine is an indole alkaloid with proven antitumor activity against various tumors in vitro and a diverse mechanism of action, which includes topoisomerase II inhibition, intercalation, and cell cycle impact. Olivacine—ellipticine’s isomer—shows similar properties. The objectives of this work were as follows: (a) to find a new path of olivacine synthesis, (b) to study the cytotoxic properties of olivacine and ellipticine in comparison to doxorubicin as well as their impact on the cell cycle, and (c) to investigate the cellular pharmacokinetics of the tested compounds to understand drug resistance in cancer cells better. SRB and MTT assays were used to study the anticancer activity of olivacine and ellipticine in vitro. Both compounds showed a cytotoxic effect on various cell lines, most notably on the doxorubicin-resistant LoVo/DX model, with olivacine’s cytotoxicity approximately three times higher than doxorubicin. Olivacine proved to be less effective against cancer cells and less cytotoxic to normal cells than ellipticine. Olivacine proved to have fluorescent properties. Microscopic observation of cells treated with olivacine showed the difference in sensitivity depending on the cell line, with A549 cells visibly affected by a much lower concentration of olivacine than normal NHDF cells. An increased percentage of cells in G0/G1 was observed after treatment with olivacine and ellipticine, suggesting an impact on cell cycle progression, potentially via higher p53 protein expression, which blocks the transition from G0/G1 to the S phase. Ellipticine induced apoptosis at a concentration as low as 1 μM. It has been proved that the tested compounds (ellipticine and olivacine) undergo lysosomal exocytosis. Reducing exocytosis is possible through the use of compounds that inhibit the activity of the proton pump. Olivacine and ellipticine exhibited diverse cytotoxicity against a panel of cancer cells. Analysis of the lysosomal exocytosis of olivacine and ellipticine shows the need to look for derivatives with comparable anticancer activity but reduced weak base character.
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Barrera E, Hernández-Benitez RI, González-González CA, Escalante CH, Fuentes-Benítes A, González-Romero C, Becerra-Martínez E, Delgado F, TAMARIZ JOAQUIN. Synthesis of Diarylamines and Methylcarbazoles and Formal Total Synthesis of Alkaloids Ellipticine and Olivacine. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200364] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Edson Barrera
- Instituto Politecnico Nacional Organica Chemistry Prol. Carpio y Plan de Ayala S/N 11340 Mexico MEXICO
| | - R. Israel Hernández-Benitez
- Instituto Politecnico Nacional Escuela Nacional de Ciencias Biologicas Organic Chemistry Prol. Carpio y Plan de Ayala S/N 11340 Mexico MEXICO
| | - Carlos A. González-González
- Universidad Autónoma del Estado de México: Universidad Autonoma del Estado de Mexico Organic Chemistry Paseo Colón/Paseo Tollocan S/N 50000 Toluca MEXICO
| | - Carlos H. Escalante
- Instituto Politecnico Nacional Escuela Nacional de Ciencias Biologicas Organic Chemistry Prol. Carpio y Plan de Ayala S/N 11340 Mexico MEXICO
| | - Aydeé Fuentes-Benítes
- Universidad Autónoma del Estado de México: Universidad Autonoma del Estado de Mexico Organic Chemistry Paseo Colón/Paseo Tollocan S/N 50000 Toluca MEXICO
| | - Carlos González-Romero
- Universidad Autónoma del Estado de México: Universidad Autonoma del Estado de Mexico Organic Chemistry Paseo Colón/Paseo Tollocan S/N 50000 Toluca MEXICO
| | - Elvia Becerra-Martínez
- Instituto Politecnico Nacional Centro de Nanociencias Av. Luis Enrique Erro S/NUnidad Profesional Adolfo López Mateos, Zacatenco 07738 Mexico MEXICO
| | - Francisco Delgado
- Instituto Politecnico Nacional Organic Chemistry Prol. Carpio y Plan de Ayala S/N 11340 Mexico MEXICO
| | - JOAQUIN TAMARIZ
- ESCUELA NACIONAL DE CIENCIAS BIOLOGICAS, INSTITUTO POLITÉCNICO NACIONAL ORGANIC CHEMISTRY PROL CARPIO Y PLAN DE AYALA S/NCOL. CASCO STO TOMÁSDEL. MIGUEL HIDALGO 11340 MEXICO CITY MEXICO
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Mitra S, Prova SR, Sultana SA, Das R, Nainu F, Emran TB, Tareq AM, Uddin MS, Alqahtani AM, Dhama K, Simal-Gandara J. Therapeutic potential of indole alkaloids in respiratory diseases: A comprehensive review. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2021; 90:153649. [PMID: 34325978 DOI: 10.1016/j.phymed.2021.153649] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 07/01/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Indole alkaloids are very promising for potential therapeutic purposes and appear to be particularly effective against respiratory diseases. Several experimental studies have been performed, both in vivo and in vitro, to evaluate the effectiveness of indole alkaloids for the management of respiratory disorders, including asthma, emphysema, tuberculosis, cancer, and pulmonary fibrosis. PURPOSE The fundamental objective of this review was to summarize the in-depth therapeutic potential of indole alkaloids against various respiratory disorders. STUDY DESIGN In addition to describing the therapeutic potential, this review also evaluates the toxicity of these alkaloids, which have been utilized for therapeutic benefits but have demonstrated toxic consequences. Some indole alkaloids, including scholaricine, 19-epischolaricine, vallesamine, and picrinine, which are derived from the plant Alstonia scholaris, have shown toxic effects in non-rodent models. METHODS This review also discusses clinical studies exploring the therapeutic efficacy of indole alkaloids, which have confirmed the promising benefits observed in vivo and in vitro. RESULTS The indole alkaloidal compounds have shown efficacy in subjects with respiratory diseases. CONCLUSION The available data established both preclinical and clinical studies confirm the potential of indole alkaloids to treat the respiratory disorders.
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Affiliation(s)
- Saikat Mitra
- Department of Pharmacy, Faculty of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh
| | - Shajuthi Rahman Prova
- Department of Pharmacy, Faculty of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh
| | - Sifat Ara Sultana
- Department of Pharmacy, Faculty of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh
| | - Rajib Das
- Department of Pharmacy, Faculty of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh
| | - Firzan Nainu
- Faculty of Pharmacy, Hasanuddin University, Makassar, South Sulawesi 90245, Indonesia
| | - Talha Bin Emran
- Department of Pharmacy, BGC Trust University Bangladesh, Chittagong 4381, Bangladesh.
| | - Abu Montakim Tareq
- Department of Pharmacy, International Islamic University Chittagong, Chittagong 4318, Bangladesh
| | - Md Sahab Uddin
- Department of Pharmacy, Southeast University, Dhaka 1213, Bangladesh; Pharmakon Neuroscience Research Network, Dhaka 1207, Bangladesh
| | - Ali M Alqahtani
- Department of Pharmacology, College of Pharmacy, King Khalid University, Abha 62529, Saudi Arabia
| | - Kuldeep Dhama
- Division of Pathology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly 243122, Uttar Pradesh, India
| | - Jesus Simal-Gandara
- Nutrition and Bromatology Group, Department of Analytical and Food Chemistry, Faculty of Food Science and Technology, University of Vigo - Ourense Campus, E32004 Ourense, Spain.
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Tylińska B, Wiatrak B. Bioactive Olivacine Derivatives-Potential Application in Cancer Therapy. BIOLOGY 2021; 10:564. [PMID: 34205757 PMCID: PMC8235335 DOI: 10.3390/biology10060564] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 06/15/2021] [Indexed: 11/18/2022]
Abstract
Olivacine and its derivatives are characterized by multidirectional biological activity. Noteworthy is their antiproliferative effect related to various mechanisms, such as inhibition of growth factors, enzymes, kinases and others. The activity of these compounds was tested on cell lines of various tumors. In most publications, the most active olivacine derivatives exceeded the effects of doxorubicin (a commonly used anticancer drug), so in the future, they may become the main new anticancer drugs. In this publication, we present the groups of the most active olivacine derivatives obtained. In this work, the in vitro and in vivo activity of olivacine and its most active derivatives are presented. We describe olivacine derivatives that have been in clinical trials. We conducted a structure-activity relationship (SAR) analysis that may be used to obtain new olivacine derivatives with better properties than the available anticancer drugs.
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Affiliation(s)
- Beata Tylińska
- Department of Organic Chemistry, Faculty of Pharmacy, Wroclaw Medical University, 50-556 Wroclaw, Poland
| | - Benita Wiatrak
- Department of Pharmacology, Faculty of Medicine, Wroclaw Medical University, 50-345 Wroclaw, Poland;
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Pis Diez CM, Céspedes M, Di Venosa GM, Calvo G, Avigliano E, Casas AG, Palermo JA. Synthesis and cytotoxicity evaluation of olivacine-indole hybrids tethered by alkyl linkers. Nat Prod Res 2021; 36:3657-3664. [PMID: 33517779 DOI: 10.1080/14786419.2021.1880401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
In this work, eleven new derivatives were prepared of the alkaloid olivacine (1), which was isolated from the bark of Aspidosperma australe. These compounds (7a-k) are hybrids of olivacine and indoles or carbazole, tethered by alkyl chains of variable lengths (C-4, C-5 or C-6). Compounds 7a-k showed increased cytotoxicity towards a panel of four cell lines. The subcellular localization of olivacine and of the synthetic derivatives was studied by fluorescence microscopy. The cycles of K562 cells exposed to olivacine or compounds 7a-k were analysed by flow cytometry, and showed, for some of the new derivatives, a different profile of cell distribution among the phases of the cycle when compared to olivacine, which is indicative of lysosomal apoptosis.
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Affiliation(s)
- Cristian M Pis Diez
- Universidad de Buenos Aires, Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, Buenos Aires, Argentina.,Universidad de Buenos Aires, Unidad de Microanálisis y Métodos Físicos en Química Orgánica (UMYMFOR), Buenos Aires, Argentina
| | - Mariela Céspedes
- Centro de Investigaciones sobre Porfirinas y Porfirias (CIPYP) CONICET and Hospital de Clínicas José de San Martín, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Gabriela M Di Venosa
- Centro de Investigaciones sobre Porfirinas y Porfirias (CIPYP) CONICET and Hospital de Clínicas José de San Martín, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Gustavo Calvo
- Centro de Investigaciones sobre Porfirinas y Porfirias (CIPYP) CONICET and Hospital de Clínicas José de San Martín, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Esteban Avigliano
- Centro de Investigaciones Antonia Ramos (CIAR), Fundación Bosques Nativos Argentinos. Camino Balneario s/n, Villa Bonita, Misiones, Argentina.,Instituto de Investigaciones en Producción Animal (INPA-CONICET-UBA), Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Adriana G Casas
- Centro de Investigaciones sobre Porfirinas y Porfirias (CIPYP) CONICET and Hospital de Clínicas José de San Martín, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Jorge A Palermo
- Universidad de Buenos Aires, Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, Buenos Aires, Argentina.,Universidad de Buenos Aires, Unidad de Microanálisis y Métodos Físicos en Química Orgánica (UMYMFOR), Buenos Aires, Argentina
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Novel 11-Substituted Ellipticines as Potent Anticancer Agents with Divergent Activity against Cancer Cells. Pharmaceuticals (Basel) 2019; 12:ph12020090. [PMID: 31207878 PMCID: PMC6631919 DOI: 10.3390/ph12020090] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Revised: 06/09/2019] [Accepted: 06/12/2019] [Indexed: 11/17/2022] Open
Abstract
Ellipticines have well documented anticancer activity, in particular with substitution at the 1-, 2-, 6- and 9-positions. However, due to limitations in synthesis and coherent screening methodology the full SAR profile of this anticancer class has not yet been achieved. In order to address this shortfall, we have set out to explore the anticancer activity of this potent natural product by substitution. We currently describe the synthesis of novel 11-substituted ellipticines with two specific derivatives showing potency and diverging cellular growth effects.
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