1
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Ngoma Tchibouanga RR, Jacobs A. Crystal Structures and Physicochemical Properties of 3-Chloro-4-hydroxyphenylacetic Acid Salts with Amines. Molecules 2023; 28:6965. [PMID: 37836808 PMCID: PMC10574338 DOI: 10.3390/molecules28196965] [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: 08/22/2023] [Revised: 09/26/2023] [Accepted: 09/29/2023] [Indexed: 10/15/2023] Open
Abstract
3-chloro-4-hydroxyphenylacetic acid (CHPAA) is a fungal metabolite. It is a small molecule that is useful in crystal engineering studies due to the functional groups present. Six amines were selected to form salts with CHPAA. Linear derivatives included diethylamine (DEA) and di-N-butylamine (DBM). The aromatic compounds chosen were 2-aminopyridine (A2MP), 2-amino-4-methylpyridine (A24MP), 2-amino-6-methylpyridine (A26MP) and 4-dimethylaminopyridine (DMAP). The salts were characterised using single-crystal X-ray diffraction, thermal analysis, FTIR spectroscopy and Hirshfeld surface analysis. For all the crystal structures, N-H···O and C-H···Cl contacts were present. O-H···O contacts were found in all the crystal structures except for (CHPAA2-)2DEA+, which was also the only structure that displayed a Cl···Cl contact. Furthermore, C-H···O contacts were found in all the crystal structures except for (CHPAA-)(DBM+). The thermal stability trend showed that the DBM salt was more stable than the DEA salt. For the aromatic co-formers, the thermal stability trend showed the following: CHPAA-(DMAP+) > (CHPAA-)(A2MP+)>2CHPAA-2A26MP+>(CHPAA-)(A24MP+).
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Affiliation(s)
| | - Ayesha Jacobs
- Chemistry Department, Faculty of Applied Sciences, Cape Peninsula University of Technology, P.O. Box 1906, Bellville 7535, South Africa;
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2
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Huxley C, Wibowo M, Lum KY, Gordon S, D'Hyon S, Guan H, Wang X, Chen Y, Si M, Wang M, White JM, Wahi K, Wang Q, Holst J, Davis RA. Synthesis of bilocularin A carbamate derivatives and their evaluation as leucine transport inhibitors in prostate cancer cells. PHYTOCHEMISTRY 2020; 179:112478. [PMID: 32805621 DOI: 10.1016/j.phytochem.2020.112478] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 07/08/2020] [Accepted: 07/27/2020] [Indexed: 06/11/2023]
Abstract
Large-scale extraction of the leaves of the Australian rainforest tree Maytenus bilocularis followed by extensive purification studies afforded the targeted and abundant dihydro-β-agarofuran, bilocularin A, in sufficient quantities (>500 mg) for detailed semi-synthetic chemistry. Eight bilocularin A carbamate analogues were synthesised using a series of commercially available isocyanate reagents in high purity (>95%) and variable yields (9-91%). All previously undescribed analogues were spectroscopically characterised using NMR, UV, IR and MS data. One compound afforded crystalline material and subsequent single crystal X-ray analysis (Cu-Kα) confirmed the chemical structure along with the absolute configuration. All compounds were evaluated for anti-proliferative activity against the human prostate cancer cell line LNCaP; none of the compounds showed significant (>50%) growth inhibition at 20 μM. Compounds were also tested for their ability to inhibit leucine transport in LNCaP cells, and two analogues showed moderate activity with IC50 values of 8.9 and 8.5 μM. This is the first reported synthesis of dihydro-β-agarofuran carbamate derivatives.
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Affiliation(s)
- Cohan Huxley
- Griffith Institute for Drug Discovery, School of Environment and Science, Griffith University, Brisbane, QLD 4111, Australia
| | - Mario Wibowo
- Griffith Institute for Drug Discovery, School of Environment and Science, Griffith University, Brisbane, QLD 4111, Australia
| | - Kah Yean Lum
- Griffith Institute for Drug Discovery, School of Environment and Science, Griffith University, Brisbane, QLD 4111, Australia
| | - Shelly Gordon
- Griffith Institute for Drug Discovery, School of Environment and Science, Griffith University, Brisbane, QLD 4111, Australia
| | - Sebastian D'Hyon
- Griffith Institute for Drug Discovery, School of Environment and Science, Griffith University, Brisbane, QLD 4111, Australia
| | - Hanyu Guan
- Griffith Institute for Drug Discovery, School of Environment and Science, Griffith University, Brisbane, QLD 4111, Australia
| | - Xueyi Wang
- Griffith Institute for Drug Discovery, School of Environment and Science, Griffith University, Brisbane, QLD 4111, Australia
| | - Yuxi Chen
- Griffith Institute for Drug Discovery, School of Environment and Science, Griffith University, Brisbane, QLD 4111, Australia
| | - Mingran Si
- Griffith Institute for Drug Discovery, School of Environment and Science, Griffith University, Brisbane, QLD 4111, Australia
| | - Mengchao Wang
- Griffith Institute for Drug Discovery, School of Environment and Science, Griffith University, Brisbane, QLD 4111, Australia
| | - Jonathan M White
- School of Chemistry and Bio 21 Institute, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Kanu Wahi
- Translational Cancer Metabolism Laboratory, School of Medical Sciences and Prince of Wales Clinical School, The University of New South Wales, Sydney, NSW, 2052, Australia
| | - Qian Wang
- Translational Cancer Metabolism Laboratory, School of Medical Sciences and Prince of Wales Clinical School, The University of New South Wales, Sydney, NSW, 2052, Australia
| | - Jeff Holst
- Translational Cancer Metabolism Laboratory, School of Medical Sciences and Prince of Wales Clinical School, The University of New South Wales, Sydney, NSW, 2052, Australia
| | - Rohan A Davis
- Griffith Institute for Drug Discovery, School of Environment and Science, Griffith University, Brisbane, QLD 4111, Australia.
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3
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Egbewande FA, Coster MJ, Jenkins ID, Davis RA. Reaction of Papaverine with Baran Diversinates TM. Molecules 2019; 24:molecules24213938. [PMID: 31683610 PMCID: PMC6864744 DOI: 10.3390/molecules24213938] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 10/24/2019] [Accepted: 10/28/2019] [Indexed: 12/01/2022] Open
Abstract
The reaction of papaverine with a series of Baran DiversinatesTM is reported. Although the yields were low, it was possible to synthesize a small biodiscovery library using this plant alkaloid as a scaffold for late-stage C–H functionalization. Ten papaverine analogues (2–11), including seven new compounds, were synthesized. An unexpected radical-induced exchange reaction is reported where the dimethoxybenzyl group of papaverine was replaced by an alkyl group. This side reaction enabled the synthesis of additional novel fragments based on the isoquinoline scaffold, which is present in numerous natural products. Possible reasons for the poor yields in the DiversinateTM reactions with this particular scaffold are discussed.
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Affiliation(s)
- Folake A Egbewande
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia.
| | - Mark J Coster
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia.
| | - Ian D Jenkins
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia.
| | - Rohan A Davis
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia.
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4
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Khan RA. Natural products chemistry: The emerging trends and prospective goals. Saudi Pharm J 2018; 26:739-753. [PMID: 29991919 PMCID: PMC6036106 DOI: 10.1016/j.jsps.2018.02.015] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Accepted: 02/05/2018] [Indexed: 01/01/2023] Open
Abstract
The role and contributions of natural products chemistry in advancements of the physical and biological sciences, its interdisciplinary domains, and emerging of new avenues by providing novel applications, constructive inputs, thrust, comprehensive understanding, broad perspective, and a new vision for future is outlined. The developmental prospects in bio-medical, health, nutrition, and other interrelated sciences along with some of the emerging trends in the subject area are also discussed as part of the current review of the basic and core developments, innovation in techniques, advances in methodology, and possible applications with their effects on the sciences in general and natural products chemistry in particular. The overview of the progress and ongoing developments in broader areas of the natural products chemistry discipline, its role and concurrent economic and scientific implications, contemporary objectives, future prospects as well as impending goals are also outlined. A look at the natural products chemistry in providing scientific progress in various disciplines is deliberated upon.
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Affiliation(s)
- Riaz A. Khan
- Department of Medicinal Chemistry, Qassim University, Qassim 51452, Saudi Arabia
- Manav Rachna International University, National Capital Region, Faridabad, HR 121 004, India
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5
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Egbewande FA, Sadowski MC, Levrier C, Tousignant KD, White JM, Coster MJ, Nelson CC, Davis RA. Identification of Gibberellic Acid Derivatives That Deregulate Cholesterol Metabolism in Prostate Cancer Cells. JOURNAL OF NATURAL PRODUCTS 2018; 81:838-845. [PMID: 29474071 DOI: 10.1021/acs.jnatprod.7b00929] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The naturally occurring pentacyclic diterpenoid gibberellic acid (1) was used in the generation of a drug-like amide library using parallel-solution-phase synthesis. Prior to the synthesis, a virtual library was generated and prioritized based on drug-like physicochemical parameters such as log P, hydrogen bond donor/acceptor counts, and molecular weight. The structures of the synthesized analogues (2-13) were elucidated following analysis of the NMR, MS, UV, and IR data. Compound 12 afforded crystalline material, and its structure was confirmed by X-ray crystallographic analysis. All compounds were evaluated in vitro for cytotoxicity and deregulation of lipid metabolism in LNCaP prostate cancer cells. While no cytotoxic activity was identified at the concentrations tested, synthesized analogues 3, 5, 7, 10, and 11 substantially reduced cellular uptake of free cholesterol in prostate cancer cells, suggesting a novel role of gibberellic acid derivatives in deregulating cholesterol metabolism.
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Affiliation(s)
- Folake A Egbewande
- Griffith Institute for Drug Discovery , Griffith University , Brisbane , QLD 4111 , Australia
| | - Martin C Sadowski
- Australian Prostate Cancer Research Centre-Queensland, Institute of Health and Biomedical Innovation , Queensland University of Technology, Princess Alexandra Hospital, Translational Research Institute , Brisbane , QLD 4102 , Australia
| | - Claire Levrier
- Australian Prostate Cancer Research Centre-Queensland, Institute of Health and Biomedical Innovation , Queensland University of Technology, Princess Alexandra Hospital, Translational Research Institute , Brisbane , QLD 4102 , Australia
| | - Kaylyn D Tousignant
- Australian Prostate Cancer Research Centre-Queensland, Institute of Health and Biomedical Innovation , Queensland University of Technology, Princess Alexandra Hospital, Translational Research Institute , Brisbane , QLD 4102 , Australia
| | - Jonathan M White
- School of Chemistry and Bio21 Institute , The University of Melbourne , Melbourne , Victoria 3010 , Australia
| | - Mark J Coster
- Griffith Institute for Drug Discovery , Griffith University , Brisbane , QLD 4111 , Australia
| | - Colleen C Nelson
- Australian Prostate Cancer Research Centre-Queensland, Institute of Health and Biomedical Innovation , Queensland University of Technology, Princess Alexandra Hospital, Translational Research Institute , Brisbane , QLD 4102 , Australia
| | - Rohan A Davis
- Griffith Institute for Drug Discovery , Griffith University , Brisbane , QLD 4111 , Australia
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6
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Egbewande FA, Nilsson N, White JM, Coster MJ, Davis RA. The design, synthesis, and anti-inflammatory evaluation of a drug-like library based on the natural product valerenic acid. Bioorg Med Chem Lett 2017; 27:3185-3189. [DOI: 10.1016/j.bmcl.2017.05.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 05/04/2017] [Accepted: 05/06/2017] [Indexed: 11/26/2022]
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7
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Vuorinen A, Engeli RT, Leugger S, Bachmann F, Akram M, Atanasov AG, Waltenberger B, Temml V, Stuppner H, Krenn L, Ateba SB, Njamen D, Davis RA, Odermatt A, Schuster D. Potential Antiosteoporotic Natural Product Lead Compounds That Inhibit 17β-Hydroxysteroid Dehydrogenase Type 2. JOURNAL OF NATURAL PRODUCTS 2017; 80:965-974. [PMID: 28319389 PMCID: PMC5411959 DOI: 10.1021/acs.jnatprod.6b00950] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
17β-Hydroxysteroid dehydrogenase type 2 (17β-HSD2) converts the active steroid hormones estradiol, testosterone, and 5α-dihydrotestosterone into their weakly active forms estrone, Δ4-androstene-3,17-dione, and 5α-androstane-3,17-dione, respectively, thereby regulating cell- and tissue-specific steroid action. As reduced levels of active steroids are associated with compromised bone health and onset of osteoporosis, 17β-HSD2 is considered a target for antiosteoporotic treatment. In this study, a pharmacophore model based on 17β-HSD2 inhibitors was applied to a virtual screening of various databases containing natural products in order to discover new lead structures from nature. In total, 36 hit molecules were selected for biological evaluation. Of these compounds, 12 inhibited 17β-HSD2 with nanomolar to low micromolar IC50 values. The most potent compounds, nordihydroguaiaretic acid (1), IC50 0.38 ± 0.04 μM, (-)-dihydroguaiaretic acid (4), IC50 0.94 ± 0.02 μM, isoliquiritigenin (6), IC50 0.36 ± 0.08 μM, and ethyl vanillate (12), IC50 1.28 ± 0.26 μM, showed 8-fold or higher selectivity over 17β-HSD1. As some of the identified compounds belong to the same structural class, structure-activity relationships were derived for these molecules. Thus, this study describes new 17β-HSD2 inhibitors from nature and provides insights into the binding pocket of 17β-HSD2, offering a promising starting point for further research in this area.
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Affiliation(s)
- Anna Vuorinen
- Division
of Molecular & Systems Toxicology, University
of Basel, Klingelbergstraße 50, 4056 Basel, Switzerland
| | - Roger T. Engeli
- Division
of Molecular & Systems Toxicology, University
of Basel, Klingelbergstraße 50, 4056 Basel, Switzerland
| | - Susanne Leugger
- Division
of Molecular & Systems Toxicology, University
of Basel, Klingelbergstraße 50, 4056 Basel, Switzerland
| | - Fabio Bachmann
- Division
of Molecular & Systems Toxicology, University
of Basel, Klingelbergstraße 50, 4056 Basel, Switzerland
| | - Muhammad Akram
- Computer-Aided
Molecular Design Group, Institute of Pharmacy/Pharmaceutical
Chemistry and Center for Molecular Biosciences Innsbruck, and Institute of
Pharmacy/Pharmacognosy and Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Atanas G. Atanasov
- Department
of Pharmacognosy, University of Vienna, Althanstraße 14, 1090 Vienna, Austria
- Institute
of Genetics and Animal Breeding of the Polish Academy of Sciences, Postępu 36A Street, 05-552, Jastrzebiec, Poland
| | - Birgit Waltenberger
- Computer-Aided
Molecular Design Group, Institute of Pharmacy/Pharmaceutical
Chemistry and Center for Molecular Biosciences Innsbruck, and Institute of
Pharmacy/Pharmacognosy and Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Veronika Temml
- Computer-Aided
Molecular Design Group, Institute of Pharmacy/Pharmaceutical
Chemistry and Center for Molecular Biosciences Innsbruck, and Institute of
Pharmacy/Pharmacognosy and Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Hermann Stuppner
- Computer-Aided
Molecular Design Group, Institute of Pharmacy/Pharmaceutical
Chemistry and Center for Molecular Biosciences Innsbruck, and Institute of
Pharmacy/Pharmacognosy and Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Liselotte Krenn
- Department
of Pharmacognosy, University of Vienna, Althanstraße 14, 1090 Vienna, Austria
| | - Sylvin B. Ateba
- Laboratory
of Animal Physiology, Department of Animal Biology and Physiology,
Faculty of Science, University of Yaounde
I, P.O. Box 812, Yaounde, Cameroon
| | - Dieudonné Njamen
- Laboratory
of Animal Physiology, Department of Animal Biology and Physiology,
Faculty of Science, University of Yaounde
I, P.O. Box 812, Yaounde, Cameroon
| | - Rohan A. Davis
- Griffith
Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia
| | - Alex Odermatt
- Division
of Molecular & Systems Toxicology, University
of Basel, Klingelbergstraße 50, 4056 Basel, Switzerland
- Biochemistry:
A. Odermatt, Tel: +41 (0)61 267 15 30. Fax: +41
(0)61 267 15 15.
E-mail:
| | - Daniela Schuster
- Computer-Aided
Molecular Design Group, Institute of Pharmacy/Pharmaceutical
Chemistry and Center for Molecular Biosciences Innsbruck, and Institute of
Pharmacy/Pharmacognosy and Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
- Molecular modeling: D. Schuster,
Tel: +43-512-507-58253. Fax: +43-512-507-58299. E-mail:
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8
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Kumar R, Sadowski MC, Levrier C, Nelson CC, Jones AJ, Holleran JP, Avery VM, Healy PC, Davis RA. Design and Synthesis of a Screening Library Using the Natural Product Scaffold 3-Chloro-4-hydroxyphenylacetic Acid. JOURNAL OF NATURAL PRODUCTS 2015; 78:914-918. [PMID: 25803573 DOI: 10.1021/np500856u] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The fungal metabolite 3-chloro-4-hydroxyphenylacetic acid (1) was utilized in the generation of a unique drug-like screening library using parallel solution-phase synthesis. A 20-membered amide library (3-22) was generated by first converting 1 to methyl (3-chloro-4-hydroxyphenyl)acetate (2), then reacting this scaffold with a diverse series of primary amines via a solvent-free aminolysis procedure. The structures of the synthetic analogues (3-22) were elucidated by spectroscopic data analysis. The structures of compounds 8, 12, and 22 were confirmed by single X-ray crystallographic analysis. All compounds were evaluated for cytotoxicity against a human prostate cancer cell line (LNCaP) and for antiparasitic activity toward Trypanosoma brucei brucei and Plasmodium falciparum and showed no significant activity at 10 μM. The library was also tested for effects on the lipid content of LNCaP and PC-3 prostate cancer cells, and it was demonstrated that the fluorobenzyl analogues (12-14) significantly reduced cellular phospholipid and neutral lipid levels.
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Affiliation(s)
- Rohitesh Kumar
- †Eskitis Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia
| | - Martin C Sadowski
- ‡Australian Prostate Cancer Research Centre-Queensland, Institute of Health and Biomedical Innovation, Queensland University of Technology, Princess Alexandra Hospital, Translational Research Institute, Brisbane, QLD 4102, Australia
| | - Claire Levrier
- †Eskitis Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia
- ‡Australian Prostate Cancer Research Centre-Queensland, Institute of Health and Biomedical Innovation, Queensland University of Technology, Princess Alexandra Hospital, Translational Research Institute, Brisbane, QLD 4102, Australia
| | - Colleen C Nelson
- ‡Australian Prostate Cancer Research Centre-Queensland, Institute of Health and Biomedical Innovation, Queensland University of Technology, Princess Alexandra Hospital, Translational Research Institute, Brisbane, QLD 4102, Australia
| | - Amy J Jones
- †Eskitis Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia
| | - John P Holleran
- †Eskitis Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia
| | - Vicky M Avery
- †Eskitis Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia
| | - Peter C Healy
- †Eskitis Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia
| | - Rohan A Davis
- †Eskitis Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia
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9
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Choomuenwai V, Schwartz BD, Beattie KD, Andrews KT, Khokhar S, Davis RA. The discovery, synthesis and antimalarial evaluation of natural product-based polyamine alkaloids. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.07.058] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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10
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Baron PS, Neve JE, Camp D, Suraweera L, Lam A, Lai J, Jovanovic L, Nelson C, Davis RA. Design, synthesis and spectroscopic characterisation of a focused library based on the polyandrocarpamine natural product scaffold. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2013; 51:358-63. [PMID: 23609961 DOI: 10.1002/mrc.3958] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Revised: 03/27/2013] [Accepted: 03/28/2013] [Indexed: 05/15/2023]
Abstract
A focused library based on the marine natural products polyandrocarpamines A (1) and B (2) has been designed and synthesised using parallel solution-phase chemistry. In silico physicochemical property calculations were performed on synthetic candidates in order to optimise the library for drug discovery and chemical biology. A library of ten 2-aminoimidazolone products (3-12) was prepared by coupling glycocyamidine and a variety of aldehydes using a one-step stereoselective aldol condensation reaction under microwave conditions. All analogues were characterised by NMR, UV, IR and MS. The library was evaluated for cytotoxicity towards the prostate cancer cell lines, LNCaP, PC-3 and 22Rv1.
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Affiliation(s)
- Paul S Baron
- Eskitis Institute, Griffith University, Brisbane, Queensland 4111, Australia
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11
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Choomuenwai V, Andrews KT, Davis RA. Synthesis and antimalarial evaluation of a screening library based on a tetrahydroanthraquinone natural product scaffold. Bioorg Med Chem 2012; 20:7167-74. [DOI: 10.1016/j.bmc.2012.09.052] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2012] [Revised: 09/18/2012] [Accepted: 09/25/2012] [Indexed: 10/27/2022]
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12
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Barnes EC, Choomuenwai V, Andrews KT, Quinn RJ, Davis RA. Design and synthesis of screening libraries based on the muurolane natural product scaffold. Org Biomol Chem 2012; 10:4015-23. [DOI: 10.1039/c2ob00029f] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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Davis RA, Hofmann A, Osman A, Hall RA, Mühlschlegel FA, Vullo D, Innocenti A, Supuran CT, Poulsen SA. Natural Product-Based Phenols as Novel Probes for Mycobacterial and Fungal Carbonic Anhydrases. J Med Chem 2011; 54:1682-92. [DOI: 10.1021/jm1013242] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Rohan A. Davis
- Eskitis Institute, Griffith University, Nathan, Queensland 4111, Australia
| | - Andreas Hofmann
- Eskitis Institute, Griffith University, Nathan, Queensland 4111, Australia
| | - Asiah Osman
- Eskitis Institute, Griffith University, Nathan, Queensland 4111, Australia
| | - Rebecca A. Hall
- School of Biosciences, University of Kent, Canterbury, Kent CT2 7NJ, United Kingdom
| | - Fritz A. Mühlschlegel
- School of Biosciences, University of Kent, Canterbury, Kent CT2 7NJ, United Kingdom
- Clinical Microbiology Service, East Kent Hospitals University NHS Foundation Trust, Ashford, Kent, TN24 0LZ, United Kingdom
| | - Daniela Vullo
- Laboratorio di Chimica Bioinorganica, Rm. 188, Università degli Studi di Firenze, Via della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy
| | - Alessio Innocenti
- Laboratorio di Chimica Bioinorganica, Rm. 188, Università degli Studi di Firenze, Via della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy
| | - Claudiu T. Supuran
- Laboratorio di Chimica Bioinorganica, Rm. 188, Università degli Studi di Firenze, Via della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy
| | - Sally-Ann Poulsen
- Eskitis Institute, Griffith University, Nathan, Queensland 4111, Australia
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14
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Davis RA, Healy PC. N-Benzyl-2-(3-chloro-4-hy-droxy-phen-yl)acetamide. Acta Crystallogr Sect E Struct Rep Online 2010; 66:o2521. [PMID: 21587515 PMCID: PMC2983291 DOI: 10.1107/s1600536810035397] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2010] [Accepted: 09/02/2010] [Indexed: 11/26/2022]
Abstract
The title compound, C(15)H(14)ClNO(2), was synthesized as part of a project to generate a combinatorial library based on the fungal natural product 2-(3-chloro-4-hy-droxy-phen-yl)acetamide. It crystallizes as non-planar discrete mol-ecules [the peripheral 3-chloro-4-hy-droxy-phenyl and benzyl groups are twisted out of the plane of the central acetamide group, with N-C-C-C and C-C-C-C torsion angles of -58.8 (3) and 65.0 (2)°, respectively] linked by inter-molecular N-H⋯O and O-H⋯O hydrogen bonds.
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Affiliation(s)
- Rohan A. Davis
- Eskitis Institute for Cell and Molecular Therapies, Griffith University, Nathan, Brisbane 4111, Australia
| | - Peter C. Healy
- School of Biomolecular and Physical Sciences, Griffith University, Nathan, Brisbane 4111, Australia
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15
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Davis RA, Innocenti A, Poulsen SA, Supuran CT. Carbonic anhydrase inhibitors. Identification of selective inhibitors of the human mitochondrial isozymes VA and VB over the cytosolic isozymes I and II from a natural product-based phenolic library. Bioorg Med Chem 2010; 18:14-8. [DOI: 10.1016/j.bmc.2009.11.021] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2009] [Revised: 10/29/2009] [Accepted: 11/07/2009] [Indexed: 12/21/2022]
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16
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Pierens GK, Mobli M, Vegh V. Effective Protocol for Database Similarity Searching of Heteronuclear Single Quantum Coherence Spectra. Anal Chem 2009; 81:9329-35. [DOI: 10.1021/ac901616t] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gregory K. Pierens
- Centre for Magnetic Resonance and the Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Mehdi Mobli
- Centre for Magnetic Resonance and the Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Viktor Vegh
- Centre for Magnetic Resonance and the Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland 4072, Australia
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Davis RA, Baron PS, Neve JE, Cullinane C. A microwave-assisted stereoselective synthesis of polyandrocarpamines A and B. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2008.12.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Davis RA, Healy PC. 2-(3-Chloro-4-hydroxy-phen-yl)-N-(3,4-dimethoxy-pheneth-yl)acetamide. Acta Crystallogr Sect E Struct Rep Online 2008; 64:o1057. [PMID: 21202576 PMCID: PMC2961350 DOI: 10.1107/s1600536808013299] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2008] [Accepted: 05/06/2008] [Indexed: 11/10/2022]
Abstract
The title compound, C18H20ClNO4, was synthesized during the generation of a combinatorial library based on the fungal natural product 3-chloro-4-hydroxyphenylacetamide. It crystallizes as discrete molecules linked by intermolecular C(9) chains of N—H⋯O and O—H⋯O hydrogen bonds which in turn combine to form chains of R22(20) rings.
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Affiliation(s)
- Rohan A Davis
- Eskitis Institute for Cell and Molecular Therapies, Griffith University, Nathan, Brisbane 4111, Australia
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Quinn RJ, Carroll AR, Pham NB, Baron P, Palframan ME, Suraweera L, Pierens GK, Muresan S. Developing a drug-like natural product library. JOURNAL OF NATURAL PRODUCTS 2008; 71:464-468. [PMID: 18257534 DOI: 10.1021/np070526y] [Citation(s) in RCA: 125] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Addressing drug-like/lead-like properties of biologically active small molecules early in a lead generation program is the current paradigm within the drug discovery community. Lipinski's "rule of five" has become the most commonly used tool to assess the relationship between structures and drug-like properties. Sixty percent of the 126 140 unique compounds in The Dictionary of Natural Products had no violations of Lipinski's "rule of five". We have isolated 814 natural products based on their expected drug-like/lead-like properties to generate a natural product library (NPL) in which 85% of the isolated compounds had no Lipinski violations. The library demonstrates the feasibility of obtaining natural products known for rich chemical diversity with the required physicochemical properties for drug discovery. The knowledge generated in creation of the library of structurally characterized pure natural products may provide opportunities to front-load lead-like property space in natural product drug discovery programs.
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Affiliation(s)
- Ronald J Quinn
- Eskitis Institute, Griffith University, Brisbane, Australia.
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