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Holland DC, Prebble DW, Calcott MJ, Schroder WA, Ferretti F, Lock A, Avery VM, Kiefel MJ, Carroll AR. Cheminformatics-Guided Exploration of Synthetic Marine Natural Product-Inspired Brominated Indole-3-Glyoxylamides and Their Potentials for Drug Discovery. Molecules 2024; 29:3648. [PMID: 39125052 PMCID: PMC11314621 DOI: 10.3390/molecules29153648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2024] [Revised: 07/29/2024] [Accepted: 07/29/2024] [Indexed: 08/12/2024] Open
Abstract
Marine natural products (MNPs) continue to be tested primarily in cellular toxicity assays, both mammalian and microbial, despite most being inactive at concentrations relevant to drug discovery. These MNPs become missed opportunities and represent a wasteful use of precious bioresources. The use of cheminformatics aligned with published bioactivity data can provide insights to direct the choice of bioassays for the evaluation of new MNPs. Cheminformatics analysis of MNPs found in MarinLit (n = 39,730) up to the end of 2023 highlighted indol-3-yl-glyoxylamides (IGAs, n = 24) as a group of MNPs with no reported bioactivities. However, a recent review of synthetic IGAs highlighted these scaffolds as privileged structures with several compounds under clinical evaluation. Herein, we report the synthesis of a library of 32 MNP-inspired brominated IGAs (25-56) using a simple one-pot, multistep method affording access to these diverse chemical scaffolds. Directed by a meta-analysis of the biological activities reported for marine indole alkaloids (MIAs) and synthetic IGAs, the brominated IGAs 25-56 were examined for their potential bioactivities against the Parkinson's Disease amyloid protein alpha synuclein (α-syn), antiplasmodial activities against chloroquine-resistant (3D7) and sensitive (Dd2) parasite strains of Plasmodium falciparum, and inhibition of mammalian (chymotrypsin and elastase) and viral (SARS-CoV-2 3CLpro) proteases. All of the synthetic IGAs tested exhibited binding affinity to the amyloid protein α-syn, while some showed inhibitory activities against P. falciparum, and the proteases, SARS-CoV-2 3CLpro, and chymotrypsin. The cellular safety of the IGAs was examined against cancerous and non-cancerous human cell lines, with all of the compounds tested inactive, thereby validating cheminformatics and meta-analyses results. The findings presented herein expand our knowledge of marine IGA bioactive chemical space and advocate expanding the scope of biological assays routinely used to investigate NP bioactivities, specifically those more suitable for non-toxic compounds. By integrating cheminformatics tools and functional assays into NP biological testing workflows, we can aim to enhance the potential of NPs and their scaffolds for future drug discovery and development.
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Affiliation(s)
- Darren C. Holland
- School of Environment and Science, Griffith University, Southport, QLD 4222, Australia; (D.W.P.); (F.F.); (M.J.K.)
- Griffith Institute for Drug Discovery, Griffith University, Nathan, QLD 4111, Australia
| | - Dale W. Prebble
- School of Environment and Science, Griffith University, Southport, QLD 4222, Australia; (D.W.P.); (F.F.); (M.J.K.)
- Griffith Institute for Drug Discovery, Griffith University, Nathan, QLD 4111, Australia
| | - Mark J. Calcott
- School of Biological Sciences, Victoria University of Wellington, Wellington 6102, New Zealand;
| | - Wayne A. Schroder
- School of Environment and Science, Griffith University, Nathan, QLD 4111, Australia; (W.A.S.); (A.L.); (V.M.A.)
| | - Francesca Ferretti
- School of Environment and Science, Griffith University, Southport, QLD 4222, Australia; (D.W.P.); (F.F.); (M.J.K.)
- Griffith Institute for Drug Discovery, Griffith University, Nathan, QLD 4111, Australia
| | - Aaron Lock
- School of Environment and Science, Griffith University, Nathan, QLD 4111, Australia; (W.A.S.); (A.L.); (V.M.A.)
- Discovery Biology, Griffith University, Nathan, QLD 4111, Australia
| | - Vicky M. Avery
- School of Environment and Science, Griffith University, Nathan, QLD 4111, Australia; (W.A.S.); (A.L.); (V.M.A.)
- Discovery Biology, Griffith University, Nathan, QLD 4111, Australia
| | - Milton J. Kiefel
- School of Environment and Science, Griffith University, Southport, QLD 4222, Australia; (D.W.P.); (F.F.); (M.J.K.)
- Institute for Glycomics, Griffith University, Southport, QLD 4221, Australia
| | - Anthony R. Carroll
- School of Environment and Science, Griffith University, Southport, QLD 4222, Australia; (D.W.P.); (F.F.); (M.J.K.)
- Griffith Institute for Drug Discovery, Griffith University, Nathan, QLD 4111, Australia
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2
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Long Q, Zhou W, Zhou H, Tang Y, Chen W, Liu Q, Bian X. Polyamine-containing natural products: structure, bioactivity, and biosynthesis. Nat Prod Rep 2024; 41:525-564. [PMID: 37873660 DOI: 10.1039/d2np00087c] [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: 10/25/2023]
Abstract
Covering: 2005 to August, 2023Polyamine-containing natural products (NPs) have been isolated from a wide range of terrestrial and marine organisms and most of them exhibit remarkable and diverse activities, including antimicrobial, antiprotozoal, antiangiogenic, antitumor, antiviral, iron-chelating, anti-depressive, anti-inflammatory, insecticidal, antiobesity, and antioxidant properties. Their extraordinary activities and potential applications in human health and agriculture attract increasing numbers of studies on polyamine-containing NPs. In this review, we summarized the source, structure, classification, bioactivities and biosynthesis of polyamine-containing NPs, focusing on the biosynthetic mechanism of polyamine itself and representative polyamine alkaloids, polyamine-containing siderophores with catechol/hydroxamate/hydroxycarboxylate groups, nonribosomal peptide-(polyketide)-polyamine (NRP-(PK)-PA), and NRP-PK-long chain poly-fatty amine (lcPFAN) hybrid molecules.
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Affiliation(s)
- Qingshan Long
- Hunan Provincial Engineering and Technology Research Center for Agricultural Microbiology Application, Hunan Institute of Microbiology, Changsha, 410009, China.
| | - Wen Zhou
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural, Affairs, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
| | - Haibo Zhou
- Helmholtz International Lab for Anti-Infectives, Shandong University-Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266237, China.
| | - Ying Tang
- Hunan Provincial Engineering and Technology Research Center for Agricultural Microbiology Application, Hunan Institute of Microbiology, Changsha, 410009, China.
| | - Wu Chen
- College of Plant Protection, Hunan Agricultural University, Changsha, 410128, China.
| | - Qingshu Liu
- Hunan Provincial Engineering and Technology Research Center for Agricultural Microbiology Application, Hunan Institute of Microbiology, Changsha, 410009, China.
| | - Xiaoying Bian
- Helmholtz International Lab for Anti-Infectives, Shandong University-Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266237, China.
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3
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Basagni F, Marotta G, Rosini M, Minarini A. Polyamine-Drug Conjugates: Do They Boost Drug Activity? Molecules 2023; 28:molecules28114518. [PMID: 37298993 DOI: 10.3390/molecules28114518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 05/30/2023] [Accepted: 05/31/2023] [Indexed: 06/12/2023] Open
Abstract
Over the past two decades, the strategy of conjugating polyamine tails with bioactive molecules such as anticancer and antimicrobial agents, as well as antioxidant and neuroprotective scaffolds, has been widely exploited to enhance their pharmacological profile. Polyamine transport is elevated in many pathological conditions, suggesting that the polyamine portion could improve cellular and subcellular uptake of the conjugate via the polyamine transporter system. In this review, we have presented a glimpse on the polyamine conjugate scenario, classified by therapeutic area, of the last decade with the aim of highlighting achievements and fostering future developments.
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Affiliation(s)
- Filippo Basagni
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum-University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy
| | - Giambattista Marotta
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum-University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy
| | - Michela Rosini
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum-University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy
| | - Anna Minarini
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum-University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy
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4
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Negm WA, Ezzat SM, Zayed A. Marine organisms as potential sources of natural products for the prevention and treatment of malaria. RSC Adv 2023; 13:4436-4475. [PMID: 36760290 PMCID: PMC9892989 DOI: 10.1039/d2ra07977a] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 01/26/2023] [Indexed: 02/05/2023] Open
Abstract
Vector-borne diseases (VBDs) are a worldwide critical concern accounting for 17% of the estimated global burden of all infectious diseases in 2020. Despite the various medicines available for the management, the deadliest VBD malaria, caused by Plasmodium sp., has resulted in hundreds of thousands of deaths in sub-Saharan Africa only. This finding may be explained by the progressive loss of antimalarial medication efficacy, inherent toxicity, the rise of drug resistance, or a lack of treatment adherence. As a result, new drug discoveries from uncommon sources are desperately needed, especially against multi-drug resistant strains. Marine organisms have been investigated, including sponges, soft corals, algae, and cyanobacteria. They have been shown to produce many bioactive compounds that potentially affect the causative organism at different stages of its life cycle, including the chloroquine (CQ)-resistant strains of P. falciparum. These compounds also showed diverse chemical structures belonging to various phytochemical classes, including alkaloids, terpenoids, polyketides, macrolides, and others. The current article presents a comprehensive review of marine-derived natural products with antimalarial activity as potential candidates for targeting different stages and species of Plasmodium in both in vitro and in vivo and in comparison with the commercially available and terrestrial plant-derived products, i.e., quinine and artemisinin.
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Affiliation(s)
- Walaa A Negm
- Department of Pharmacognosy, Tanta University, College of Pharmacy El-Guish Street Tanta 31527 Egypt
| | - Shahira M Ezzat
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University Kasr El-Aini Street Cairo 11562 Egypt
- Department of Pharmacognosy, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA) Giza 12451 Egypt
| | - Ahmed Zayed
- Department of Pharmacognosy, Tanta University, College of Pharmacy El-Guish Street Tanta 31527 Egypt
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Gribble GW. Naturally Occurring Organohalogen Compounds-A Comprehensive Review. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 2023; 121:1-546. [PMID: 37488466 DOI: 10.1007/978-3-031-26629-4_1] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/26/2023]
Abstract
The present volume is the third in a trilogy that documents naturally occurring organohalogen compounds, bringing the total number-from fewer than 25 in 1968-to approximately 8000 compounds to date. Nearly all of these natural products contain chlorine or bromine, with a few containing iodine and, fewer still, fluorine. Produced by ubiquitous marine (algae, sponges, corals, bryozoa, nudibranchs, fungi, bacteria) and terrestrial organisms (plants, fungi, bacteria, insects, higher animals) and universal abiotic processes (volcanos, forest fires, geothermal events), organohalogens pervade the global ecosystem. Newly identified extraterrestrial sources are also documented. In addition to chemical structures, biological activity, biohalogenation, biodegradation, natural function, and future outlook are presented.
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Affiliation(s)
- Gordon W Gribble
- Department of Chemistry, Dartmouth College, Hanover, NH, 03755, USA.
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6
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Zhang L, Gu C, Liu J. Nature spermidine and spermine alkaloids: Occurrence and pharmacological effects. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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7
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Wesseling CJ, Martin NI. Synergy by Perturbing the Gram-Negative Outer Membrane: Opening the Door for Gram-Positive Specific Antibiotics. ACS Infect Dis 2022; 8:1731-1757. [PMID: 35946799 PMCID: PMC9469101 DOI: 10.1021/acsinfecdis.2c00193] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
New approaches to target antibacterial agents toward Gram-negative bacteria are key, given the rise of antibiotic resistance. Since the discovery of polymyxin B nonapeptide as a potent Gram-negative outer membrane (OM)-permeabilizing synergist in the early 1980s, a vast amount of literature on such synergists has been published. This Review addresses a range of peptide-based and small organic compounds that disrupt the OM to elicit a synergistic effect with antibiotics that are otherwise inactive toward Gram-negative bacteria, with synergy defined as a fractional inhibitory concentration index (FICI) of <0.5. Another requirement for the inclusion of the synergists here covered is their potentiation of a specific set of clinically used antibiotics: erythromycin, rifampicin, novobiocin, or vancomycin. In addition, we have focused on those synergists with reported activity against Gram-negative members of the ESKAPE family of pathogens namely, Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumoniae, and/or Acinetobacter baumannii. In cases where the FICI values were not directly reported in the primary literature but could be calculated from the published data, we have done so, allowing for more direct comparison of potency with other synergists. We also address the hemolytic activity of the various OM-disrupting synergists reported in the literature, an effect that is often downplayed but is of key importance in assessing the selectivity of such compounds for Gram-negative bacteria.
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8
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Shi YJ, Zhang J, Wang YW, Ding K, Yan Y, Xia CY, Li XX, He J, Zhang WK, Xu JK. The untapped potential of spermidine alkaloids: Sources, structures, bioactivities and syntheses. Eur J Med Chem 2022; 240:114600. [PMID: 35863273 DOI: 10.1016/j.ejmech.2022.114600] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 07/04/2022] [Accepted: 07/07/2022] [Indexed: 11/26/2022]
Abstract
Spermidine alkaloids are a kind of natural products possessing an aliphatic triamine structure with three or four methylene groups between two N-atoms. Spermidine alkaloids exist in plants, microorganisms, and marine organisms, which usually form amide structures with cinnamic acid or fatty acid derivatives. Their unique structures showed a wide range of biological activities such as neuroprotective, anti-aging, anti-cancer, antioxidant, anti-inflammatory, and antimicrobial. In order to better understand the research status of spermidine alkaloids and promote their applications in human health, this paper systematically reviewed the biological sources, structures, pharmacological actions, and synthetic processes of spermidine alkaloids over the past two decades. This will help to open up new pharmacological investigation fields and better drug design based on these spermidine alkaloids.
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Affiliation(s)
- Yan-Jing Shi
- School of Life Sciences & School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, PR China; Institute of Clinical Medical Sciences & Department of Pharmacy, China-Japan Friendship Hospital, Beijing, 100029, PR China
| | - Jia Zhang
- School of Life Sciences & School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, PR China
| | - Yu-Wei Wang
- School of Life Sciences & School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, PR China
| | - Kang Ding
- School of Life Sciences & School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, PR China
| | - Yu Yan
- Institute of Clinical Medical Sciences & Department of Pharmacy, China-Japan Friendship Hospital, Beijing, 100029, PR China
| | - Cong-Yuan Xia
- Institute of Clinical Medical Sciences & Department of Pharmacy, China-Japan Friendship Hospital, Beijing, 100029, PR China
| | - Xin-Xin Li
- School of Life Sciences & School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, PR China
| | - Jun He
- Institute of Clinical Medical Sciences & Department of Pharmacy, China-Japan Friendship Hospital, Beijing, 100029, PR China.
| | - Wei-Ku Zhang
- Institute of Clinical Medical Sciences & Department of Pharmacy, China-Japan Friendship Hospital, Beijing, 100029, PR China.
| | - Jie-Kun Xu
- School of Life Sciences & School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, PR China.
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9
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Hai Y, Cai ZM, Li PJ, Wei MY, Wang CY, Gu YC, Shao CL. Trends of antimalarial marine natural products: progresses, challenges and opportunities. Nat Prod Rep 2022; 39:969-990. [DOI: 10.1039/d1np00075f] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This review provides an overview of the antimalarial marine natural products, focusing on their chemistry, malaria-related targets and mechanisms, and highlighting their potential for drug development.
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Affiliation(s)
- Yang Hai
- Key Laboratory of Marine Drugs, The Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
| | - Zi-Mu Cai
- Key Laboratory of Marine Drugs, The Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
| | - Peng-Jie Li
- Key Laboratory of Marine Drugs, The Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
| | - Mei-Yan Wei
- Key Laboratory of Marine Drugs, The Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, China
| | - Chang-Yun Wang
- Key Laboratory of Marine Drugs, The Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266237, China
| | - Yu-Cheng Gu
- Syngenta Jealott's Hill International Research Centre, Bracknell, Berkshire, RG42 6EY, UK
| | - Chang-Lun Shao
- Key Laboratory of Marine Drugs, The Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266237, China
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10
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Tempone AG, Pieper P, Borborema SET, Thevenard F, Lago JHG, Croft SL, Anderson EA. Marine alkaloids as bioactive agents against protozoal neglected tropical diseases and malaria. Nat Prod Rep 2021; 38:2214-2235. [PMID: 34913053 PMCID: PMC8672869 DOI: 10.1039/d0np00078g] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Indexed: 01/09/2023]
Abstract
Covering: 2000 up to 2021Natural products are an important resource in drug discovery, directly or indirectly delivering numerous small molecules for potential development as human medicines. Among the many classes of natural products, alkaloids have a rich history of therapeutic applications. The extensive chemodiversity of alkaloids found in the marine environment has attracted considerable attention for such uses, while the scarcity of these natural materials has stimulated efforts towards their total synthesis. This review focuses on the biological activity of marine alkaloids (covering 2000 to up to 2021) towards Neglected Tropical Diseases (NTDs) caused by protozoan parasites, and malaria. Chemotherapy represents the only form of treatment for Chagas disease, human African trypanosomiasis, leishmaniasis and malaria, but there is currently a restricted arsenal of drugs, which often elicit severe adverse effects, show variable efficacy or resistance, or are costly. Natural product scaffolds have re-emerged as a focus of academic drug discovery programmes, offering a different resource to discover new chemical entities with new modes of action. In this review, the potential of a range of marine alkaloids is analyzed, accompanied by coverage of synthetic efforts that enable further studies of key antiprotozoal natural product scaffolds.
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Affiliation(s)
- Andre G Tempone
- Centre for Parasitology and Mycology, Instituto Adolfo Lutz, São Paulo, 01246-000, Brazil.
| | - Pauline Pieper
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, UK.
| | - Samanta E T Borborema
- Centre for Parasitology and Mycology, Instituto Adolfo Lutz, São Paulo, 01246-000, Brazil.
| | - Fernanda Thevenard
- Centre of Natural Sciences and Humanities, Federal University of ABC, Sao Paulo, 09210-580, Brazil
| | - Joao Henrique G Lago
- Centre of Natural Sciences and Humanities, Federal University of ABC, Sao Paulo, 09210-580, Brazil
| | - Simon L Croft
- Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK.
| | - Edward A Anderson
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, UK.
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Pearce AN, Chen D, Edmeades LR, Cadelis MM, Troudi A, Brunel JM, Bourguet-Kondracki ML, Copp BR. Repurposing primaquine as a polyamine conjugate to become an antibiotic adjuvant. Bioorg Med Chem 2021; 38:116110. [PMID: 33831695 DOI: 10.1016/j.bmc.2021.116110] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 03/04/2021] [Accepted: 03/06/2021] [Indexed: 11/17/2022]
Abstract
In our search for new antibiotic adjuvants as a novel strategy to deal with the emergence of multi-drug resistant (MDR) bacteria, a series of succinylprimaquine-polyamine (SPQ-PA) conjugates and derivatives of a cationic amphiphilic nature have been prepared. Evaluation of these primaquine conjugates for intrinsic antimicrobial properties and the ability to restore the antibiotic activity of doxycycline identified two derivatives, SPQ-PA3-8-3 and SPQ-PA3-10-3 that exhibited intrinsic activity against the Gram-positive bacteria Staphylococcus aureus and the yeast Cryptococcus neoformans. None of the analogues were active against the Gram-negative bacterium Pseudomonas aeruginosa. However, in the presence of a sub-therapeutic amount of doxycycline (4.5 µM), both SPQ-PA3-4-3 and SPQ-PA3-10-3 compounds displayed potent antibiotic adjuvant properties against P. aeruginosa, with MIC's of 6.25 µM. A series of derivatives were prepared to investigate the structure-activity relationship that explored the influence of both a simplified aryl lipophilic substituent and variation of the length of the polyamine scaffold on observed intrinsic antimicrobial properties and the ability to potentiate the action of doxycycline against P. aeruginosa.
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Affiliation(s)
- A Norrie Pearce
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Dan Chen
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Liam R Edmeades
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Melissa M Cadelis
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Azza Troudi
- UMR_MD1, U-1261, Aix Marseille Universite, INSERM, SSA, MCT, 13385 Marseille, France
| | - Jean Michel Brunel
- UMR_MD1, U-1261, Aix Marseille Universite, INSERM, SSA, MCT, 13385 Marseille, France
| | - Marie-Lise Bourguet-Kondracki
- Laboratoire Molécules de Communication et Adaptation des Micro-organismes, UMR 7245 CNRS, Muséum National d'Histoire Naturelle, 57 rue Cuvier (C.P. 54), 75005 Paris, France
| | - Brent R Copp
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
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12
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Li J, Xu Y, Hu X, Zhu S, Liu L. Easy Access to 2,4-Disubstituted Cyclopentenones by a Gold(III)-Catalyzed A3-Coupling/Cyclization Cascade. Org Lett 2020; 22:9478-9483. [PMID: 33237782 DOI: 10.1021/acs.orglett.0c03451] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
An efficient and convenient synthesis of 2,4-disubstituted cyclopentenones has been achieved through a Au(III)-catalyzed isomerization-A3-coupling/cyclization cascade. A possible mechanism involving an initial Au(III)-catalyzed isomerization, A3-type coupling, and cyclization via an enol intermediate is postulated.
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Affiliation(s)
- Jian Li
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Pharmacy, Changzhou University, Changzhou, 213164, China
| | - Yue Xu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Pharmacy, Changzhou University, Changzhou, 213164, China
| | - Xiwen Hu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Pharmacy, Changzhou University, Changzhou, 213164, China
| | - Shangrong Zhu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Pharmacy, Changzhou University, Changzhou, 213164, China
| | - Li Liu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Pharmacy, Changzhou University, Changzhou, 213164, China
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13
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Cadelis MM, Li SA, Bourguet-Kondracki ML, Blanchet M, Douafer H, Brunel JM, Copp BR. Spermine Derivatives of Indole-3-carboxylic Acid, Indole-3-acetic Acid and Indole-3-acrylic Acid as Gram-Negative Antibiotic Adjuvants. ChemMedChem 2020; 16:513-523. [PMID: 33090655 DOI: 10.1002/cmdc.202000359] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 09/28/2020] [Indexed: 01/08/2023]
Abstract
The discovery of new antibiotic adjuvants is an attractive option for overcoming antimicrobial resistance. We have previously reported the discovery of a bis-6-bromoindolglyoxylamide derivative of spermine as being able to enhance the action of antibiotics against Gram-negative bacteria but suffers from being cytotoxic and red-blood cell haemolytic. A series of analogues was prepared exploring variation of the indolglyoxylamide unit, to include indole-3-acrylic, indole-3-acetic and indole-3-carboxylate units, and evaluated for antibiotic enhancing properties against a range of Gram-negative bacteria, and for intrinsic antimicrobial, cytotoxic and haemolytic properties. Two spermine derivatives, bearing 5-bromo-indole-3-acetic acid (17) and 5-methoxy-indole-3-acrylic acid (14) end groups were found to exhibit good to moderate antibiotic adjuvant activities for doxycycline towards the Gram-negative bacteria Pseudomonas aeruginosa, Escherichia coli and Klebsiella pneumoniae, but with more modest intrinsic antimicrobial activity and greatly reduced cytotoxic and haemolytic properties. The mechanism of action of the latter derivative identified its ability to disrupt the outer membranes of bacteria and to inhibit the AcrAB-TolC efflux pump directly or by inhibiting the proton gradient.
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Affiliation(s)
- Melissa M Cadelis
- School of Chemical Sciences, The University of Auckland, Private Bag, 92019, Auckland 1142, New Zealand
| | - Steven A Li
- School of Chemical Sciences, The University of Auckland, Private Bag, 92019, Auckland 1142, New Zealand
| | - Marie-Lise Bourguet-Kondracki
- Laboratoire Molécules de Communication et Adaptation des Micro-organismes UMR 7245 CNRS Muséum National d'Histoire Naturelle, 57 rue Cuvier (C.P. 54), 75005, Paris, France
| | - Marine Blanchet
- Aix-Marseille Université, INSERM, SSA, MCT, 13385, Marseille, France
| | - Hana Douafer
- Aix-Marseille Université, INSERM, SSA, MCT, 13385, Marseille, France
| | | | - Brent R Copp
- School of Chemical Sciences, The University of Auckland, Private Bag, 92019, Auckland 1142, New Zealand
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14
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Li J, Sun X, Li J, Yu F, Zhang Y, Huang X, Jiang F. The antimalarial activity of indole alkaloids and hybrids. Arch Pharm (Weinheim) 2020; 353:e2000131. [PMID: 32785974 DOI: 10.1002/ardp.202000131] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 07/03/2020] [Accepted: 07/21/2020] [Indexed: 12/21/2022]
Affiliation(s)
- Jue‐Ying Li
- Ultrasonography Department, The Central Hospital of Wuhan, Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Xiao‐Feng Sun
- Ultrasonography Department, The Central Hospital of Wuhan, Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Jing‐Jing Li
- Ultrasonography Department, The Central Hospital of Wuhan, Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Fen Yu
- Ultrasonography Department, The Central Hospital of Wuhan, Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Yi Zhang
- Ultrasonography Department, The Central Hospital of Wuhan, Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Xiu‐Juan Huang
- Ultrasonography Department, The Central Hospital of Wuhan, Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Feng‐Xia Jiang
- Ultrasonography Department, The Central Hospital of Wuhan, Tongji Medical College Huazhong University of Science and Technology Wuhan China
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15
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Youssef DTA, Almagthali H, Shaala LA, Schmidt EW. Secondary Metabolites of the Genus Didemnum: A Comprehensive Review of Chemical Diversity and Pharmacological Properties. Mar Drugs 2020; 18:E307. [PMID: 32545321 PMCID: PMC7344992 DOI: 10.3390/md18060307] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 05/30/2020] [Accepted: 06/09/2020] [Indexed: 12/16/2022] Open
Abstract
Tunicates (ascidians) are common marine invertebrates that are an exceptionally important source of natural products with biomedical and pharmaceutical applications, including compounds that are used clinically in cancers. Among tunicates, the genus Didemnum is important because it includes the most species, and it belongs to the most speciose family (Didemnidae). The genus Didemnum includes the species D. molle, D. chartaceum, D. albopunctatum, and D. obscurum, as well as others, which are well known for their chemically diverse secondary metabolites. To date, investigators have reported secondary metabolites, usually including bioactivity data, for at least 69 members of the genus Didemnum, leading to isolation of 212 compounds. Many of these compounds exhibit valuable biological activities in assays targeting cancers, bacteria, fungi, viruses, protozoans, and the central nervous system. This review highlights compounds isolated from genus Didemnum through December 2019. Chemical diversity, pharmacological activities, geographical locations, and applied chemical methods are described.
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Affiliation(s)
- Diaa T. A. Youssef
- Department of Natural Products, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
- Department of Pharmacognosy, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt
| | - Hadeel Almagthali
- Department of Natural Products, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
- Department of Pharmacognosy, College of Pharmacy, Taif University, Al-Haweiah 21974, Saudi Arabia
| | - Lamiaa A. Shaala
- Natural Products Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Suez Canal University Hospital, Suez Canal University, Ismailia 41522, Egypt
| | - Eric W. Schmidt
- Department of Medicinal Chemistry, University of Utah, Salt Lake City, UT 84112, USA
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16
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Dou X, Dong B. Origins and Bioactivities of Natural Compounds Derived from Marine Ascidians and Their Symbionts. Mar Drugs 2019; 17:md17120670. [PMID: 31795141 PMCID: PMC6950356 DOI: 10.3390/md17120670] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 11/25/2019] [Accepted: 11/25/2019] [Indexed: 02/07/2023] Open
Abstract
Marine ascidians are becoming important drug sources that provide abundant secondary metabolites with novel structures and high bioactivities. As one of the most chemically prolific marine animals, more than 1200 inspirational natural products, such as alkaloids, peptides, and polyketides, with intricate and novel chemical structures have been identified from ascidians. Some of them have been successfully developed as lead compounds or highly efficient drugs. Although numerous compounds that exist in ascidians have been structurally and functionally identified, their origins are not clear. Interestingly, growing evidence has shown that these natural products not only come from ascidians, but they also originate from symbiotic microbes. This review classifies the identified natural products from ascidians and the associated symbionts. Then, we discuss the diversity of ascidian symbiotic microbe communities, which synthesize diverse natural products that are beneficial for the hosts. Identification of the complex interactions between the symbiont and the host is a useful approach to discovering ways that direct the biosynthesis of novel bioactive compounds with pharmaceutical potentials.
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Affiliation(s)
- Xiaoju Dou
- Laboratory of Morphogenesis & Evolution, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China;
- College of Agricultural Science and Technology, Tibet Vocational Technical College, Lhasa 850030, China
| | - Bo Dong
- Laboratory of Morphogenesis & Evolution, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China;
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
- Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China
- Correspondence: ; Tel.: +86-0532-82032732
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17
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WITHDRAWN: Metabolite profiling, molecular docking and in vitro anticancer potential of marine ascidian Didemnum sp. Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.09.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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18
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Li SA, Cadelis MM, Sue K, Blanchet M, Vidal N, Brunel JM, Bourguet-Kondracki ML, Copp BR. 6-Bromoindolglyoxylamido derivatives as antimicrobial agents and antibiotic enhancers. Bioorg Med Chem 2019; 27:2090-2099. [DOI: 10.1016/j.bmc.2019.04.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 04/03/2019] [Indexed: 01/28/2023]
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19
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Arumugam V, Venkatesan M, Saravanan N, Ramachandran S, Sengodan K, Sundaresan U, Palanisamy SK. Tunicates as a biocontrol tool for larvicides acute toxicity of Zika virus vector Aedes aegypti. 3 Biotech 2019; 9:172. [PMID: 30997309 PMCID: PMC6456632 DOI: 10.1007/s13205-019-1699-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 04/01/2019] [Indexed: 12/13/2022] Open
Abstract
In this present study, we conducted untargeted metabolic profiling using gas chromatography-mass spectrometry (GC-MS) analysis of ascidian Didemnum bistratum to assess the chemical constituents by searching in NIST library with promising biological properties against anti-bacterial and Zika virus vector mosquitocidal properties. Metabolites, steroids and fatty acids are abundant in crude compounds of ascidian D. bistratum and showed potential zone growth inhibition against bacterial strains Kluyvera ascorbate (10 mm). The active crude compounds of D. bistratum exhibited prominent larvicidal activity against the Zika vector mosquitoes of Aedes aegypti (LC50 values of 0.44 mg/ml) and Cluex quinquefasciatus (LC50 values of 2.23 mg/ml). The findings of this study provide a first evidence of the biological properties exhibited by D. bistratum extracts, thus increasing the knowledge about the Zika virus vector mosquitocidal properties of ascidian. Overall, ascidian D. bistratum is promising and biocontrol or eco-friendly tool against A. aegypti and C. quinquefasciatus with prospective toxicity against non-target organisms.
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Affiliation(s)
- Velusamy Arumugam
- Department of Environmental Biotechnology, School of Environmental Sciences, Bharathidasan University, Tiruchirappalli, Tamil Nadu 620 024 India
| | - Manigandan Venkatesan
- Native Medicine and Marine Pharmacology Laboratory, Department of Medical Biotechnology, Chettinad Academy of Research and Education, Kelambakkam, Chennai, Tamil Nadu 603 013 India
| | - Nishakavya Saravanan
- Native Medicine and Marine Pharmacology Laboratory, Department of Medical Biotechnology, Chettinad Academy of Research and Education, Kelambakkam, Chennai, Tamil Nadu 603 013 India
| | - Saravanan Ramachandran
- Native Medicine and Marine Pharmacology Laboratory, Department of Medical Biotechnology, Chettinad Academy of Research and Education, Kelambakkam, Chennai, Tamil Nadu 603 013 India
| | - Karthi Sengodan
- Department of Biochemistry, K.S. Rangasamy College of Arts and Science (Autonomous), Tiruchengode, Namakkal, Tamil Nadu 637 215 India
| | - Umamaheswari Sundaresan
- Department of Environmental Biotechnology, School of Environmental Sciences, Bharathidasan University, Tiruchirappalli, Tamil Nadu 620 024 India
| | - Satheesh Kumar Palanisamy
- Department of Zoology, Ryan Institute, School of Natural Science, National University of Ireland, Galway, Ireland
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20
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Kaur N. Synthesis of six- and seven-membered and larger heterocylces using Au and Ag catalysts. INORG NANO-MET CHEM 2019. [DOI: 10.1080/24701556.2019.1567544] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Navjeet Kaur
- Department of Chemistry, Banasthali Vidyapith, Banasthali, Rajasthan, India
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21
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Guo S, Fang Z, Zhou B, Hua J, Dai Z, Yang Z, Liu C, He W, Guo K. Cu/Pd-Catalyzed chemoselective synthesis of C-3 dicarbonyl indoles and bis(indolyl)alkanes from aldehydes and indoles. Org Chem Front 2019. [DOI: 10.1039/c8qo01206g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel Cu/Pd-catalyzed chemoselective synthesis of C-3 dicarbonyl indoles and bis(indolyl)alkanes from aldehydes and indoles has been achieved, which has good substrate universality and high efficacy on large-scale.
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Affiliation(s)
- Shiyu Guo
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- PR China
| | - Zheng Fang
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- PR China
| | - Bochao Zhou
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- PR China
| | - Jiawei Hua
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- PR China
| | - Zhongxue Dai
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- PR China
| | - Zhao Yang
- College of Engineering
- China Pharmaceutical University
- Nanjing 210003
- PR China
| | - Chengkou Liu
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- PR China
| | - Wei He
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- PR China
| | - Kai Guo
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- PR China
- State Key Laboratory of Materials-Oriented Chemical Engineering
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22
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Rampelotto PH, Trincone A. Anti-infective Compounds from Marine Organisms. GRAND CHALLENGES IN MARINE BIOTECHNOLOGY 2018. [PMCID: PMC7123853 DOI: 10.1007/978-3-319-69075-9_3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Pabulo H. Rampelotto
- Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Antonio Trincone
- Istituto di Chimica Biomolecolare, Consiglio Nazionale delle Ricerche, Pozzuoli, Naples, Italy
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23
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Pearce AN, Kaiser M, Copp BR. Synthesis and antimalarial evaluation of artesunate-polyamine and trioxolane-polyamine conjugates. Eur J Med Chem 2017; 140:595-603. [DOI: 10.1016/j.ejmech.2017.09.040] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 09/18/2017] [Accepted: 09/20/2017] [Indexed: 12/18/2022]
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24
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Polyamine-based analogs and conjugates as antikinetoplastid agents. Eur J Med Chem 2017; 139:982-1015. [DOI: 10.1016/j.ejmech.2017.08.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 07/24/2017] [Accepted: 08/04/2017] [Indexed: 12/12/2022]
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25
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Girish YR, Pandit S, Pandit S, De M. Graphene Oxide as a Carbocatalyst for a Diels-Alder Reaction in an Aqueous Medium. Chem Asian J 2017; 12:2393-2398. [DOI: 10.1002/asia.201701072] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 08/14/2017] [Indexed: 12/26/2022]
Affiliation(s)
- Yarabhally R. Girish
- Department of Organic Chemistry; Indian Institute of Science; Bangalore 560012 Karnataka India
| | - Subrata Pandit
- Department of Organic Chemistry; Indian Institute of Science; Bangalore 560012 Karnataka India
| | - Subhendu Pandit
- Department of Organic Chemistry; Indian Institute of Science; Bangalore 560012 Karnataka India
| | - Mrinmoy De
- Department of Organic Chemistry; Indian Institute of Science; Bangalore 560012 Karnataka India
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26
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Design and synthesis of bis(indolyl)ketohydrazide-hydrazones: Identification of potent and selective novel tubulin inhibitors. Eur J Med Chem 2017; 136:184-194. [DOI: 10.1016/j.ejmech.2017.04.078] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Revised: 04/25/2017] [Accepted: 04/30/2017] [Indexed: 12/26/2022]
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27
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Xu J, Luo Y, Xu H, Chen Z, Miao M, Ren H. Catalyst-Controlled Chemodivergent Modification of Indoles with 2-Furylcarbinols: Piancatelli Reaction vs Cross-Dehydrative Coupling Reaction. J Org Chem 2017; 82:3561-3570. [PMID: 28244319 DOI: 10.1021/acs.joc.7b00090] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A divergent synthetic strategy to functionalize the indole nucleus with readily available 2-furylcarbinols was developed. It was found that the 3-(4-oxo-2-cyclopentenyl)indoles were obtained in moderate to good yields (up to 89%) through Piancatelli reaction catalyzed by ZnCl2, whereas employment of Brønsted acid TFA afforded directly coupled product 3-(2-furyl)indoles in moderate to good yields (up to 87%) via the deprotonation-rearomatization route.
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Affiliation(s)
- Jianfeng Xu
- Department of Chemistry, Zhejiang Sci-Tech University , Hangzhou, Zhejiang 310018, P. R. China
| | - Yi Luo
- Department of Chemistry, Zhejiang Sci-Tech University , Hangzhou, Zhejiang 310018, P. R. China
| | - Huaping Xu
- Department of Chemistry, Zhejiang Sci-Tech University , Hangzhou, Zhejiang 310018, P. R. China
| | - Zhengkai Chen
- Department of Chemistry, Zhejiang Sci-Tech University , Hangzhou, Zhejiang 310018, P. R. China
| | - Maozhong Miao
- Department of Chemistry, Zhejiang Sci-Tech University , Hangzhou, Zhejiang 310018, P. R. China
| | - Hongjun Ren
- Department of Chemistry, Zhejiang Sci-Tech University , Hangzhou, Zhejiang 310018, P. R. China
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28
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Palanisamy SK, Rajendran NM, Marino A. Natural Products Diversity of Marine Ascidians (Tunicates; Ascidiacea) and Successful Drugs in Clinical Development. NATURAL PRODUCTS AND BIOPROSPECTING 2017; 7:1-111. [PMID: 28097641 PMCID: PMC5315671 DOI: 10.1007/s13659-016-0115-5] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Accepted: 12/14/2016] [Indexed: 06/06/2023]
Abstract
This present study reviewed the chemical diversity of marine ascidians and their pharmacological applications, challenges and recent developments in marine drug discovery reported during 1994-2014, highlighting the structural activity of compounds produced by these specimens. Till date only 5% of living ascidian species were studied from <3000 species, this study represented from family didemnidae (32%), polyclinidae (22%), styelidae and polycitoridae (11-12%) exhibiting the highest number of promising MNPs. Close to 580 compound structures are here discussed in terms of their occurrence, structural type and reported biological activity. Anti-cancer drugs are the main area of interest in the screening of MNPs from ascidians (64%), followed by anti-malarial (6%) and remaining others. FDA approved ascidian compounds mechanism of action along with other compounds status of clinical trials (phase 1 to phase 3) are discussed here in. This review highlights recent developments in the area of natural products chemistry and biotechnological approaches are emphasized.
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Affiliation(s)
- Satheesh Kumar Palanisamy
- Department of Chemical, Biological, Pharmaceutical and Environmental Science, University of Messina, 98166, Messina, Italy.
| | - N M Rajendran
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Angela Marino
- Department of Chemical, Biological, Pharmaceutical and Environmental Science, University of Messina, 98166, Messina, Italy
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29
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Ramanathan M, Kuo CK, Liu ST. One pot synthesis of α-ketoamides from ethylarenes and amines: a metal free difunctionalization strategy. Org Biomol Chem 2016; 14:11446-11453. [PMID: 27878198 DOI: 10.1039/c6ob02361d] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
One-pot and metal free synthesis of α-ketoamides has been described through in situ generation of aryl ketones from easily available ethylarenes followed by amidation with various amines. This multiple oxidation protocol involves catalytic I2-pyridine-TBHP (t-butyl hydroperoxide) mediated oxidative benzylic carbonylation and sequential NaI-TBHP mediated oxidative amidation without using any solvent.
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Affiliation(s)
- Mani Ramanathan
- Department of Chemistry, National Taiwan University, Taipei 106, Taiwan.
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30
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Li MC, Sun WS, Cheng W, Liu D, Liang H, Zhang QY, Lin WH. Four new minor brominated indole related alkaloids with antibacterial activities from Laurencia similis. Bioorg Med Chem Lett 2016; 26:3590-3. [DOI: 10.1016/j.bmcl.2016.06.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 05/23/2016] [Accepted: 06/07/2016] [Indexed: 11/27/2022]
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31
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Kaur N. Applications of gold catalysts for the synthesis of five-membered O-heterocycles. INORG NANO-MET CHEM 2016. [DOI: 10.1080/15533174.2015.1068809] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Navjeet Kaur
- Department of Chemistry, Banasthali University, Banasthali, India
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32
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Yan J, He G, Yan F, Zhang J, Zhang G. The dicarbonylation of indoles via Friedel–Crafts reaction with dicarbonyl nitrile generated in situ and retro-cyanohydrination. RSC Adv 2016. [DOI: 10.1039/c6ra04016k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The reaction of indole and β-carbonyl nitrile to generate dicarbonyl indoles has been developed. This process involves α-oxonation of the β-carbonyl nitrile, Friedel–Crafts reaction with indoles and retro-cyanohydrination form dicarbonyl indoles.
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Affiliation(s)
- Jianwei Yan
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals
- Key Laboratory of Green Chemical Media and Reactions
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Henan Normal University
| | - Guangjie He
- Department of Forensic Medicine
- Xinxiang Medical University
- Xinxiang
- P. R. China
| | - Fulin Yan
- School of Pharmacy
- Xinxiang Medical University
- Xinxiang
- P. R. China
| | - Jixia Zhang
- School of Pharmacy
- Xinxiang Medical University
- Xinxiang
- P. R. China
| | - Guisheng Zhang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals
- Key Laboratory of Green Chemical Media and Reactions
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Henan Normal University
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33
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Syntheses of 4-Indolylquinoline Derivatives via Reductive Cyclization of Indolylnitrochalcone Derivatives by Fe/HCl. Molecules 2015; 20:22499-519. [PMID: 26694335 PMCID: PMC6332431 DOI: 10.3390/molecules201219862] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 12/07/2015] [Accepted: 12/08/2015] [Indexed: 11/29/2022] Open
Abstract
An easy and efficient procedure for the synthesis of 4-indolylquinoline derivatives is described. This process involves two steps, the first of which is the Michael addition of indole to nitrochalcones promoted by sulfamic acid under solvent free conditions and the second step is a reductive cyclization of the indolylnitrochalcone intermediates to 4-indolylquinoline derivatives by Fe/HCl in ethanol. In both steps, the reactions are clean and the yields of products are high.
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34
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Wedler HB, Palazzo TA, Pemberton RP, Hamann CS, Kurth MJ, Tantillo DJ. Predicting hydration propensities of biologically relevant α-ketoamides. Bioorg Med Chem Lett 2015; 25:4153-7. [PMID: 26306983 DOI: 10.1016/j.bmcl.2015.08.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 08/01/2015] [Accepted: 08/06/2015] [Indexed: 10/23/2022]
Abstract
Quantum chemical calculations coupled to experiments were used to predict covalent hydration propensities of biologically relevant α-ketoamides. Experimentally determined hydration equilibrium constants for related ketones and aldehydes were compared to computationally determined values to develop a method for predicting hydration equilibrium constants. This method was used on six newly synthesized α-ketoamides to experimentally verify computational predictions. A correlation between calculation and experiment was observed and applied to models of several pertinent APIs. Our results indicate that the keto form is favored for practically all α-ketoamides in biological environs.
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Affiliation(s)
- Henry B Wedler
- Department of Chemistry, University of California, Davis, 1 Shields Avenue, Davis, CA 95616, USA
| | - Teresa A Palazzo
- Department of Chemistry, University of California, Davis, 1 Shields Avenue, Davis, CA 95616, USA
| | - Ryan P Pemberton
- Department of Chemistry, University of California, Davis, 1 Shields Avenue, Davis, CA 95616, USA
| | - Christian S Hamann
- Department of Chemistry & Biochemistry, Albright College, Reading, PA 19604, USA
| | - Mark J Kurth
- Department of Chemistry, University of California, Davis, 1 Shields Avenue, Davis, CA 95616, USA
| | - Dean J Tantillo
- Department of Chemistry, University of California, Davis, 1 Shields Avenue, Davis, CA 95616, USA
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35
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Abstract
Marine indole alkaloids comprise a large and steadily growing group of secondary metabolites. Their diverse biological activities make many compounds of this class attractive starting points for pharmaceutical development. Several marine-derived indoles were found to possess cytotoxic, antineoplastic, antibacterial and antimicrobial activities, in addition to the action on human enzymes and receptors. The newly isolated indole alkaloids of marine origin since the last comprehensive review in 2003 are reported, and biological aspects will be discussed.
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Affiliation(s)
- Natalie Netz
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany.
| | - Till Opatz
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany.
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36
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O’Sullivan MC, Durham TB, Valdes HE, Dauer KL, Karney NJ, Forrestel AC, Bacchi CJ, Baker JF. Dibenzosuberyl substituted polyamines and analogs of clomipramine as effective inhibitors of trypanothione reductase; molecular docking, and assessment of trypanocidal activities. Bioorg Med Chem 2015; 23:996-1010. [DOI: 10.1016/j.bmc.2015.01.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 01/04/2015] [Accepted: 01/09/2015] [Indexed: 12/15/2022]
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Hahn D, Kim GJ, Choi H, Kang H. A Novel Bromoindole Alkaloid from a Korean Colonial TunicateDidemnumsp. ACTA ACUST UNITED AC 2015. [DOI: 10.20307/nps.2015.21.4.278] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Dongyup Hahn
- School of Earth and Environmental Sciences, Seoul National University, NS-80, Seoul, 151-747, Republic of Korea
| | - Geum Jin Kim
- College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongbuk 712-749, Republic of Korea
| | - Hyukjae Choi
- College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongbuk 712-749, Republic of Korea
| | - Heonjoong Kang
- School of Earth and Environmental Sciences, Seoul National University, NS-80, Seoul, 151-747, Republic of Korea
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Indole alkaloids from marine sources as potential leads against infectious diseases. BIOMED RESEARCH INTERNATIONAL 2014; 2014:375423. [PMID: 24995289 PMCID: PMC4066687 DOI: 10.1155/2014/375423] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2014] [Revised: 04/25/2014] [Accepted: 04/25/2014] [Indexed: 12/18/2022]
Abstract
Indole alkaloids comprise a large and complex class of natural products found in a variety of marine sources. Infectious diseases remain a major threat to public health, and in the absence of long-term protective vaccines, the control of these infectious diseases is based on a small number of chemotherapeutic agents. Furthermore, the emerging resistance against these drugs makes it urgently necessary to discover and develop new, safe and, effective anti-infective agents. In this regard, the aim of this review is to highlight indole alkaloids from marine sources which have been shown to demonstrate activity against infectious diseases.
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Investigation of indolglyoxamide and indolacetamide analogues of polyamines as antimalarial and antitrypanosomal agents. Mar Drugs 2014; 12:3138-60. [PMID: 24879541 PMCID: PMC4071569 DOI: 10.3390/md12063138] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 04/30/2014] [Accepted: 05/04/2014] [Indexed: 01/21/2023] Open
Abstract
Pure compound screening has previously identified the indolglyoxylamidospermidine ascidian metabolites didemnidine A and B (2 and 3) to be weak growth inhibitors of Trypanosoma brucei rhodesiense (IC50 59 and 44 μM, respectively) and Plasmodium falciparum (K1 dual drug resistant strain) (IC50 41 and 15 μM, respectively), but lacking in selectivity (L6 rat myoblast, IC50 24 μM and 25 μM, respectively). To expand the structure–activity relationship of this compound class towards both parasites, we have prepared and biologically tested a library of analogues that includes indoleglyoxyl and indoleacetic “capping acids”, and polyamines including spermine (PA3-4-3) and extended analogues PA3-8-3 and PA3-12-3. 7-Methoxy substituted indoleglyoxylamides were typically found to exhibit the most potent antimalarial activity (IC50 10–92 nM) but with varying degrees of selectivity versus the L6 rat myoblast cell line. A 6-methoxyindolglyoxylamide analogue was the most potent growth inhibitor of T.brucei (IC50 0.18 μM) identified in the study: it, however, also exhibited poor selectivity (L6 IC50 6.0 μM). There was no apparent correlation between antimalarial and anti-T. brucei activity in the series. In vivo evaluation of one analogue against Plasmodium berghei was undertaken, demonstrating a modest 20.9% reduction in parasitaemia.
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Zhou X, Li X. Catalyst-free system for sulfenylation of free (N–H) indoles with 2,2′-dithiosalicylic acid under alkaline conditions. RSC Adv 2014. [DOI: 10.1039/c3ra46361c] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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41
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Synthesis and in vitro and in vivo evaluation of antimalarial polyamines. Eur J Med Chem 2013; 69:22-31. [DOI: 10.1016/j.ejmech.2013.07.055] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2013] [Revised: 07/28/2013] [Accepted: 07/30/2013] [Indexed: 11/19/2022]
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Lam CFC, Pearce AN, Tan SH, Kaiser M, Copp BR. Discovery and evaluation of thiazinoquinones as anti-protozoal agents. Mar Drugs 2013; 11:3472-99. [PMID: 24022732 PMCID: PMC3806465 DOI: 10.3390/md11093472] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Revised: 08/20/2013] [Accepted: 08/30/2013] [Indexed: 11/16/2022] Open
Abstract
Pure compound screening has identified the dioxothiazino-quinoline-quinone ascidian metabolite ascidiathiazone A (2) to be a moderate growth inhibitor of Trypanosoma brucei rhodesiense (IC50 3.1 μM) and Plasmodium falciparum (K1 dual drug resistant strain) (IC50 3.3 μM) while exhibiting low levels of cytotoxicity (L6, IC50 167 μM). A series of C-7 amide and Δ2(3) analogues were prepared that explored the influence of lipophilicity and oxidation state on observed anti-protozoal activity and selectivity. Little variation in anti-malarial potency was observed (IC50 0.62–6.5 μM), and no correlation was apparent between anti-malarial and anti-T. brucei activity. Phenethylamide 7e and Δ2(3)-glycine analogue 8k exhibited similar anti-Pf activity to 2 but with slightly enhanced selectivity (SI 72 and 93, respectively), while Δ2(3)-phenethylamide 8e (IC50 0.67 μM, SI 78) exhibited improved potency and selectivity towards T. brucei rhodesiense compared to the natural product hit. A second series of analogues were prepared that replaced the quinoline ring of 2 with benzofuran or benzothiophene moieties. While esters 10a/10b and 15 were once again found to exhibit cytotoxicity, carboxylic acid analogues exhibited potent anti-Pf activity (IC50 0.34–0.035 μM) combined with excellent selectivity (SI 560–4000). In vivo evaluation of a furan carboxylic acid analogue against P. berghei was undertaken, demonstrating 85.7% and 47% reductions in parasitaemia with ip or oral dosing respectively.
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Affiliation(s)
- Cary F. C. Lam
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand; E-Mails: (C.F.C.L.); (A.N.P.); (S.H.T.)
| | - A. Norrie Pearce
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand; E-Mails: (C.F.C.L.); (A.N.P.); (S.H.T.)
| | - Shen H. Tan
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand; E-Mails: (C.F.C.L.); (A.N.P.); (S.H.T.)
| | - Marcel Kaiser
- Swiss Tropical and Public Health Institute, Socinstrasse 57, PO Box, Basel CH-4002, Switzerland; E-Mail:
- University of Basel, Basel CH-4003, Switzerland
| | - Brent R. Copp
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand; E-Mails: (C.F.C.L.); (A.N.P.); (S.H.T.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +64-9-923-8284; Fax: +64-9-373-7422
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Lee YJ, Lee DG, Rho HS, Krasokhin VB, Shin HJ, Lee JS, Lee HS. Cytotoxic 5-Hydroxyindole Alkaloids from the Marine SpongeScalarispongiasp. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.1599] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yeon-Ju Lee
- Korea Ocean Research and Development Institute; Ansan 426-744 Korea
| | - Dong-Geun Lee
- Korea Ocean Research and Development Institute; Ansan 426-744 Korea
| | - Hyun Soo Rho
- Korea Ocean Research and Development Institute; Ansan 426-744 Korea
| | | | - Hee Jae Shin
- Korea Ocean Research and Development Institute; Ansan 426-744 Korea
| | - Jong Seok Lee
- Korea Ocean Research and Development Institute; Ansan 426-744 Korea
| | - Hyi-Seung Lee
- Korea Ocean Research and Development Institute; Ansan 426-744 Korea
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Zhang ZT, Wang L, Chen QF, Chen QH, Chen DL, Liu XY, Wang FP. Revisions of the diterpenoid alkaloids reported in a JNP paper (2012, 75, 1145–1159). Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.05.029] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Abstract
This review covers the literature published in 2011 for marine natural products, with 870 citations (558 for the period January to December 2011) referring to compounds isolated from marine microorganisms and phytoplankton, green, brown and red algae, sponges, cnidarians, bryozoans, molluscs, tunicates, echinoderms, mangroves and other intertidal plants and microorganisms. The emphasis is on new compounds (1152 for 2011), together with the relevant biological activities, source organisms and country of origin. Biosynthetic studies, first syntheses, and syntheses that lead to the revision of structures or stereochemistries, have been included.
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Affiliation(s)
- John W Blunt
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
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Heffernan SJ, Tellam JP, Queru ME, Silvanus AC, Benito D, Mahon MF, Hennessy AJ, Andrews BI, Carbery DR. Double Gold-Catalysed Annulation of Indoles by Enynones. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300018] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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47
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Recent advances in marine drug research. Biotechnol Adv 2013; 31:1826-45. [PMID: 23500952 DOI: 10.1016/j.biotechadv.2013.02.006] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2012] [Revised: 02/18/2013] [Accepted: 02/23/2013] [Indexed: 02/04/2023]
Abstract
Structures and properties of promising marine anti-cancer, anti-inflammation and anti-infectious (HIV, HSV, malaria, leishmania) compounds reported during 2008-2011 are discussed. Wherever possible, attempts have also been made to highlight their possible biogenesis or structure-activity relationships (SAR). Since the stress is on identifying and short-listing potential drug molecules, this review is restricted to only those compounds exhibiting promising in vitro activity, the arbitrary cut off being IC50<15 μM, reported during the above period.
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Ishikura M, Abe T, Choshi T, Hibino S. Simple indole alkaloids and those with a non-rearranged monoterpenoid unit. Nat Prod Rep 2013; 30:694-752. [DOI: 10.1039/c3np20118j] [Citation(s) in RCA: 269] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Zhang X, Zhou X, Xiao H, Li X. A catalyst-free system for 3-sulfenylation of free (N–H) indoles with mercaptobenzoic acid under alkaline conditions. RSC Adv 2013. [DOI: 10.1039/c3ra44484h] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
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50
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