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Rivas C, Jackson JA, Rigby A, Jarvis JA, White AJP, Blower PJ, Phanopoulos A, Ma MT. Probing Unexpected Reactivity in Radiometal Chemistry: Indium-111-Mediated Hydrolysis of Hybrid Cyclen-Hydroxypyridinone Ligands. Inorg Chem 2023; 62:5270-5281. [PMID: 36926900 PMCID: PMC10074387 DOI: 10.1021/acs.inorgchem.3c00353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
Chelators based on hydroxypyridinones have utility in incorporating radioactive metal ions into diagnostic and therapeutic agents used in nuclear medicine. Over the course of our hydroxypyridinone studies, we have prepared two novel chelators, consisting of a cyclen (1,4,7,10-tetraazacyclododecane) ring bearing two pendant hydroxypyridinone groups, appended via methylene acetamide motifs at either the 1,4-positions (L1) or 1,7-positions (L2) of the cyclen ring. In radiolabeling reactions of L1 or L2 with the γ-emitting radioisotope, [111In]In3+, we have observed radiometal-mediated hydrolysis of a single amide group of either L1 or L2. The reaction of either [111In]In3+ or [natIn]In3+ with either L1 or L2, in aqueous alkaline solutions at 80 °C, initially results in formation of [In(L1)]+ or [In(L2)]+, respectively. Over time, each of these species undergoes In3+-mediated hydrolysis of a single amide group to yield species in which In3+ remains coordinated to the resultant chelator, which consists of a cyclen ring bearing a single hydroxypyridinone group and a single carboxylate group. The reactivity toward hydrolysis is higher for the L1 complex compared to that for the L2 complex. Density functional theory calculations corroborate these experimental findings and importantly indicate that the activation energy required for the hydrolysis of L1 is significantly lower than that required for L2. This is the first reported example of a chelator undergoing radiometal-mediated hydrolysis to form a radiometalated complex. It is possible that metal-mediated amide bond cleavage is a source of instability in other radiotracers, particularly those in which radiometal complexation occurs in aqueous, basic solutions at high temperatures. This study highlights the importance of appropriate characterization of radiolabeled products.
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Affiliation(s)
- Charlotte Rivas
- School of Biomedical Engineering and Imaging Sciences, King's College London, 4th Floor Lambeth Wing, St Thomas' Hospital, London SE1 7EH, U.K
| | - Jessica A Jackson
- School of Biomedical Engineering and Imaging Sciences, King's College London, 4th Floor Lambeth Wing, St Thomas' Hospital, London SE1 7EH, U.K
| | - Alex Rigby
- School of Biomedical Engineering and Imaging Sciences, King's College London, 4th Floor Lambeth Wing, St Thomas' Hospital, London SE1 7EH, U.K
| | - James A Jarvis
- Randall Centre of Cell and Molecular Biophysics and Centre for Biomolecular Spectroscopy, King's College London, London SE1 9RT, U.K
| | - Andrew J P White
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, London W12 0BZ, U.K
| | - Philip J Blower
- School of Biomedical Engineering and Imaging Sciences, King's College London, 4th Floor Lambeth Wing, St Thomas' Hospital, London SE1 7EH, U.K
| | - Andreas Phanopoulos
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, London W12 0BZ, U.K
| | - Michelle T Ma
- School of Biomedical Engineering and Imaging Sciences, King's College London, 4th Floor Lambeth Wing, St Thomas' Hospital, London SE1 7EH, U.K
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2
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Gawne PJ, Man F, Blower PJ, T M de Rosales R. Direct Cell Radiolabeling for in Vivo Cell Tracking with PET and SPECT Imaging. Chem Rev 2022; 122:10266-10318. [PMID: 35549242 PMCID: PMC9185691 DOI: 10.1021/acs.chemrev.1c00767] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The arrival of cell-based therapies is a revolution in medicine. However, its safe clinical application in a rational manner depends on reliable, clinically applicable methods for determining the fate and trafficking of therapeutic cells in vivo using medical imaging techniques─known as in vivo cell tracking. Radionuclide imaging using single photon emission computed tomography (SPECT) or positron emission tomography (PET) has several advantages over other imaging modalities for cell tracking because of its high sensitivity (requiring low amounts of probe per cell for imaging) and whole-body quantitative imaging capability using clinically available scanners. For cell tracking with radionuclides, ex vivo direct cell radiolabeling, that is, radiolabeling cells before their administration, is the simplest and most robust method, allowing labeling of any cell type without the need for genetic modification. This Review covers the development and application of direct cell radiolabeling probes utilizing a variety of chemical approaches: organic and inorganic/coordination (radio)chemistry, nanomaterials, and biochemistry. We describe the key early developments and the most recent advances in the field, identifying advantages and disadvantages of the different approaches and informing future development and choice of methods for clinical and preclinical application.
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Affiliation(s)
- Peter J Gawne
- School of Biomedical Engineering & Imaging Sciences, King's College London, St Thomas' Hospital, London, SE1 7EH, U.K
| | - Francis Man
- School of Biomedical Engineering & Imaging Sciences, King's College London, St Thomas' Hospital, London, SE1 7EH, U.K.,Institute of Pharmaceutical Science, School of Cancer and Pharmaceutical Sciences, King's College London, London, SE1 9NH, U.K
| | - Philip J Blower
- School of Biomedical Engineering & Imaging Sciences, King's College London, St Thomas' Hospital, London, SE1 7EH, U.K
| | - Rafael T M de Rosales
- School of Biomedical Engineering & Imaging Sciences, King's College London, St Thomas' Hospital, London, SE1 7EH, U.K
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3
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A new “Mitsunobu homocoupling” reaction using aldol adducts of kojic acid. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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4
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Konno H, Mihara H, Watanabe Y. Preparation of Pyridine Derivatives from the Corresponding 5-Acetal-1-carbonyl Compounds by Acid Promoted Cyclization. HETEROCYCLES 2021. [DOI: 10.3987/com-21-14457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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5
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Jiang X, Guo J, Lv Y, Yao C, Zhang C, Mi Z, Shi Y, Gu J, Zhou T, Bai R, Xie Y. Rational design, synthesis and biological evaluation of novel multitargeting anti-AD iron chelators with potent MAO-B inhibitory and antioxidant activity. Bioorg Med Chem 2020; 28:115550. [PMID: 32503694 DOI: 10.1016/j.bmc.2020.115550] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 05/02/2020] [Accepted: 05/05/2020] [Indexed: 01/08/2023]
Abstract
A series of (3-hydroxypyridin-4-one)-coumarin hybrids were developed and investigated as potential multitargeting candidates for the treatment of Alzheimer's disease (AD) through the incorporation of iron-chelating and monoamine oxidase B (MAO-B) inhibition. This combination endowed the hybrids with good capacity to inhibit MAO-B as well as excellent iron-chelating effects. The pFe3+ values of the compounds were ranging from 16.91 to 20.16, comparable to more potent than the reference drug deferiprone (DFP). Among them, compound 18d exhibited the most promising activity against MAO-B, with an IC50 value of 87.9 nM. Moreover, compound 18d exerted favorable antioxidant activity, significantly reversed the amyloid-β1-42 (Aβ1-42) induced PC12 cell damage. More importantly, 18d remarkably ameliorated the cognitive dysfunction in a scopolamine-induced mice AD model. In brief, a series of hybrids with potential anti-AD effect were successfully obtained, indicating that the design of iron chelators with MAO-B inhibitory and antioxidant activities is an attractive strategy against AD progression.
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Affiliation(s)
- Xiaoying Jiang
- Collaborative Innovation Centre of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, PR China
| | - Jianan Guo
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Yangjing Lv
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Chuansheng Yao
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Changjun Zhang
- Collaborative Innovation Centre of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, PR China
| | - Zhisheng Mi
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Yuan Shi
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Jinping Gu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Tao Zhou
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, PR China
| | - Renren Bai
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, PR China.
| | - Yuanyuan Xie
- Collaborative Innovation Centre of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, PR China; College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, PR China.
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Notaro A, Jakubaszek M, Koch S, Rubbiani R, Dömötör O, Enyedy ÉA, Dotou M, Bedioui F, Tharaud M, Goud B, Ferrari S, Alessio E, Gasser G. A Maltol‐Containing Ruthenium Polypyridyl Complex as a Potential Anticancer Agent. Chemistry 2020; 26:4997-5009. [DOI: 10.1002/chem.201904877] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 02/14/2020] [Indexed: 12/23/2022]
Affiliation(s)
- Anna Notaro
- Chimie ParisTechPSL UniversityCNRSInstitute of Chemistry for Life and Health SciencesLaboratory for Inorganic Chemical Biology 75005 Paris France
| | - Marta Jakubaszek
- Chimie ParisTechPSL UniversityCNRSInstitute of Chemistry for Life and Health SciencesLaboratory for Inorganic Chemical Biology 75005 Paris France
- Institut CuriePSL University, CNRS UMR 144 75248 Paris France
| | - Severin Koch
- Department of ChemistryUniversity of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Riccardo Rubbiani
- Department of ChemistryUniversity of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Orsolya Dömötör
- Department of Inorganic and Analytical ChemistryInterdisciplinary Excellence CentreUniversity of Szeged Dóm tér 7. 6720 Szeged Hungary
| | - Éva A. Enyedy
- Department of Inorganic and Analytical ChemistryInterdisciplinary Excellence CentreUniversity of Szeged Dóm tér 7. 6720 Szeged Hungary
- MTA-SZTE Lendület Functional Metal Complexes Research GroupUniversity of Szeged Dóm tér 7 6720 Szeged Hungary
| | - Mazzarine Dotou
- Chimie ParisTechPSL UniversityCNRSInstitute of Chemistry for Life and Health SciencesLaboratory for Inorganic Chemical Biology 75005 Paris France
| | - Fethi Bedioui
- Chimie ParisTech, PSL University, CNRSInstitute of Chemistry for Life and Health SciencesTeam Synthèse Electrochimie, Imagerie et Systèmes, Analytiques pour le Diagnostic 75005 Paris France
| | - Mickaël Tharaud
- Université de ParisInstitut de physique du globe de Paris, CNRS 75005 Paris France
| | - Bruno Goud
- Institut CuriePSL University, CNRS UMR 144 75248 Paris France
| | - Stefano Ferrari
- Institute of Molecular Cancer ResearchUniversity of Zurich 8057 Zurich Switzerland
- Institute of Molecular GeneticsCzech Academy of Sciences Videnska 1083 14300 Prague Czech Republic
| | - Enzo Alessio
- Department of Chemical and Pharmaceutical SciencesUniversity of Trieste Via, L. Giorgieri 1 34127 Trieste Italy
| | - Gilles Gasser
- Chimie ParisTechPSL UniversityCNRSInstitute of Chemistry for Life and Health SciencesLaboratory for Inorganic Chemical Biology 75005 Paris France
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7
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Fayyazi N, Esmaeili S, Taheri S, Ribeiro FF, Scotti MT, Scotti L, Ghasemi JB, Saghaei L, Fassihi A. Pharmacophore Modeling, Synthesis, Scaffold Hopping and Biological β- Hematin Inhibition Interaction Studies for Anti-malaria Compounds. Curr Top Med Chem 2020; 19:2743-2765. [DOI: 10.2174/1568026619666191116160326] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 08/02/2019] [Accepted: 10/01/2019] [Indexed: 01/23/2023]
Abstract
Backgound:Exploring potent compounds is critical to generating multi-target drug discovery. Hematin crystallization is an important mechanism of malaria.Methods:A series of chloroquine analogues were designed using a repositioning approach to develop new anticancer compounds. Protein-ligand interaction fingerprints and ADMET descriptors were used to assess docking performance in virtual screenings to design chloroquine hybrid β-hematin inhibitors. A PLS algorithm was applied to correlate the molecular descriptors to IC50 values. The modeling presented excellent predictive power with correlation coefficients for calibration and cross-validation of r2 = 0.93 and q2 = 0.72. Using the model, a series of 4-aminoquinlin hybrids were synthesized and evaluated for their biological activity as an external test series. These compounds were evaluated for cytotoxic cell lines and β-hematin inhibition.Results:The target compounds exhibited high β-hematin inhibition activity and were 3-9 times more active than the positive control. Furthermore, all the compounds exhibited moderate to high cytotoxic activity. The most potent compound in the dataset was docked with hemoglobin and its pharmacophore features were generated. These features were used as input to the Pharmit server for screening of six databases.Conclusion:The compound with the best score from ChEMBL was 2016904, previously reported as a VEGFR-2 inhibitor. The 11 compounds selected presented the best Gold scores with drug-like properties and can be used for drug development.
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Affiliation(s)
- Neda Fayyazi
- Department of Medicinal Chemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan, Iran
| | - Somayeh Esmaeili
- Traditional Medicine and Medical Material Research Center (TMRC), Shahid beheshti University of Medical Sciences, Tehran, Iran
| | - Salman Taheri
- Chemistry and Chemical Engineering Research Center of Iran, Tehran, Iran
| | - Frederico F. Ribeiro
- Synthesis and Drug Delivery Laboratory, Biological Sciences Department, Paraíba State University, João Pessoa, Brazil
| | | | | | - Jahan B. Ghasemi
- College of Sciences, Faculty of Chemistry, University of Tehran, Tehran, Iran
| | - Lotfollah Saghaei
- Department of Medicinal Chemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan, Iran
| | - Afshin Fassihi
- Department of Medicinal Chemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan, Iran
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8
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Sirous H, Fassihi A, Brogi S, Campiani G, Christ F, Debyser Z, Gemma S, Butini S, Chemi G, Grillo A, Zabihollahi R, Aghasadeghi MR, Saghaie L, Memarian HR. Synthesis, Molecular Modelling and Biological Studies of 3-hydroxypyrane- 4-one and 3-hydroxy-pyridine-4-one Derivatives as HIV-1 Integrase Inhibitors. Med Chem 2019; 15:755-770. [PMID: 30569867 DOI: 10.2174/1573406415666181219113225] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 11/12/2018] [Accepted: 12/11/2018] [Indexed: 01/29/2023]
Abstract
BACKGROUND Despite the progress in the discovery of antiretroviral compounds for treating HIV-1 infection by targeting HIV integrase (IN), a promising and well-known drug target against HIV-1, there is a growing need to increase the armamentarium against HIV, for avoiding the drug resistance issue. OBJECTIVE To develop novel HIV-1 IN inhibitors, a series of 3-hydroxy-pyrane-4-one (HP) and 3- hydroxy-pyridine-4-one (HPO) derivatives have been rationally designed and synthesized. METHODS To provide a significant characterization of the novel compounds, in-depth computational analysis was performed using a novel HIV-1 IN/DNA binary 3D-model for investigating the binding mode of the newly conceived molecules in complex with IN. The 3D-model was generated using the proto-type foamy virus (PFV) DNA as a structural template, positioning the viral polydesoxyribonucleic chain into the HIV-1 IN homology model. Moreover, a series of in vitro tests were performed including HIV-1 activity inhibition, HIV-1 IN activity inhibition, HIV-1 IN strand transfer activity inhibition and cellular toxicity. RESULTS Bioassay results indicated that most of HP analogues including HPa, HPb, HPc, HPd, HPe and HPg, showed favorable inhibitory activities against HIV-1-IN in the low micromolar range. Particularly halogenated derivatives (HPb and HPd) offered the best biological activities in terms of reduced toxicity and optimum inhibitory activities against HIV-1 IN and HIV-1 in cell culture. CONCLUSION Halogenated derivatives, HPb and HPd, displayed the most promising anti-HIV profile, paving the way to the optimization of the presented scaffolds for developing new effective antiviral agents.
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Affiliation(s)
- Hajar Sirous
- Department of Medicinal Chemistry, Faculty of Pharmacy, Isfahan University of Medical Sciences, 81746-73461 Isfahan, Iran.,Bioinformatics Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Afshin Fassihi
- Department of Medicinal Chemistry, Faculty of Pharmacy, Isfahan University of Medical Sciences, 81746-73461 Isfahan, Iran
| | - Simone Brogi
- Department of Biotechnology, Chemistry and Pharmacy, DoE Department of Excellence 2018-2022, University of Siena, via Aldo Moro 2, 53100 Siena, Italy.,European Research Centre for Drug Discovery and Development (NatSynDrugs), via Aldo Moro 2, 53100 Siena, Italy.,Department of Pharmacy, DoE Department of Excellence 2018-2022, University of Naples Federico II, via D. Montesano 49, 80131 Naples, Italy
| | - Giuseppe Campiani
- Department of Biotechnology, Chemistry and Pharmacy, DoE Department of Excellence 2018-2022, University of Siena, via Aldo Moro 2, 53100 Siena, Italy.,European Research Centre for Drug Discovery and Development (NatSynDrugs), via Aldo Moro 2, 53100 Siena, Italy
| | - Frauke Christ
- Laboratory of Molecular Virology and Gene Therapy, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium
| | - Zeger Debyser
- Laboratory of Molecular Virology and Gene Therapy, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium
| | - Sandra Gemma
- Department of Biotechnology, Chemistry and Pharmacy, DoE Department of Excellence 2018-2022, University of Siena, via Aldo Moro 2, 53100 Siena, Italy.,European Research Centre for Drug Discovery and Development (NatSynDrugs), via Aldo Moro 2, 53100 Siena, Italy
| | - Stefania Butini
- Department of Biotechnology, Chemistry and Pharmacy, DoE Department of Excellence 2018-2022, University of Siena, via Aldo Moro 2, 53100 Siena, Italy.,European Research Centre for Drug Discovery and Development (NatSynDrugs), via Aldo Moro 2, 53100 Siena, Italy
| | - Giulia Chemi
- Department of Biotechnology, Chemistry and Pharmacy, DoE Department of Excellence 2018-2022, University of Siena, via Aldo Moro 2, 53100 Siena, Italy.,European Research Centre for Drug Discovery and Development (NatSynDrugs), via Aldo Moro 2, 53100 Siena, Italy
| | - Alessandro Grillo
- Department of Biotechnology, Chemistry and Pharmacy, DoE Department of Excellence 2018-2022, University of Siena, via Aldo Moro 2, 53100 Siena, Italy.,European Research Centre for Drug Discovery and Development (NatSynDrugs), via Aldo Moro 2, 53100 Siena, Italy
| | - Rezvan Zabihollahi
- Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, Iran
| | | | - Lotfollah Saghaie
- Department of Medicinal Chemistry, Faculty of Pharmacy, Isfahan University of Medical Sciences, 81746-73461 Isfahan, Iran
| | - Hamid R Memarian
- Department of Chemistry, Faculty of Sciences, University of Isfahan, 81746-73441 Isfahan, Iran
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9
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Nishiguchi T, Yoshikawa Y, Yasui H. Investigating the target organs of novel anti-diabetic zinc complexes with organo‑selenium ligands. J Inorg Biochem 2018; 185:103-112. [DOI: 10.1016/j.jinorgbio.2018.05.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Revised: 04/25/2018] [Accepted: 05/08/2018] [Indexed: 12/16/2022]
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10
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Weekes DM, Cawthray JF, Rieder M, Syeda J, Ali M, Wasan E, Kostelnik TI, Patrick BO, Panahifar A, Al-Dissi A, Cooper D, Wasan KM, Orvig C. La(iii) biodistribution profiles from intravenous and oral dosing of two lanthanum complexes, La(dpp) 3 and La(XT), and evaluation as treatments for bone resorption disorders. Metallomics 2018; 9:902-909. [PMID: 28561856 DOI: 10.1039/c7mt00133a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Trivalent lanthanum (La3+) has the potential to treat bone resorption disorders (such as osteoporosis) by eliciting a bone-building response in the cells which control skeletal remodelling. Because La3+ suffers from extremely poor intestinal absorption, specifically designed chelators are required in order that a biologically active form of lanthanum can be administered orally. Two such chelators, 1,2-dimethyl-3-hydroxy-4-pyridinone (Hdpp) and bis-{[bis(carboxymethyl)amino]methy}phosphinic acid (H5XT), have previously been the subjects of extensive physical, in vitro, and in vivo testing as the tris- and mono-lanthanum(iii) complexes La(dpp)3 and La(XT), respectively. In this manuscript, we expand upon those studies to include 4-week intravenous (IV) and oral La3+ biodistribution profiles, which show that the metal ion initially accumulates in the liver followed by preferential redistribution and retention by bone. Of the two compounds, La(XT) demonstrates the more favourable in vivo characteristics, therefore dose-dependent oral biodistribution studies were carried out with this complex. These show drug saturation above a dose of 100 mg kg-1 day-1, so liver histology was performed in order to assess any potential toxicity. Finally, we improve upon the physical characterization of La(dpp)3 to include a single crystal X-ray structure, which exhibits an 8-coorindate La3+ centre with two bound water molecules, and a disordered exoclathrate-type hydrogen bonded network.
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Affiliation(s)
- D M Weekes
- Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada.
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11
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Spiegel MT, Hoogerbrugge A, Truksa S, Smith AG, Shuford KL, Klausmeyer KK, Farmer PJ. Synthesis of first row transition metal selenomaltol complexes. Dalton Trans 2018; 47:9030-9037. [DOI: 10.1039/c8dt01170b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Complexation of selenomaltol to transition metal ions promotes a zwitterionic resonance form.
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Affiliation(s)
| | | | - Shamus Truksa
- Department of Chemistry and Biochemistry
- Baylor University
- Waco
- USA
| | - Andrew G. Smith
- Department of Chemistry and Biochemistry
- Baylor University
- Waco
- USA
| | - Kevin L. Shuford
- Department of Chemistry and Biochemistry
- Baylor University
- Waco
- USA
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12
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1,2-Bis(dimaltolphosphino)ethane “Malt4Phos2”: A new phosphonite chelate ligand and corresponding platinum catalyzed styrene hydrosilylation activity. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.02.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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13
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Xie YY, Lu Z, Kong XL, Zhou T, Bansal S, Hider R. Systematic comparison of the mono-, dimethyl- and trimethyl 3-hydroxy-4(1H)-pyridones - Attempted optimization of the orally active iron chelator, deferiprone. Eur J Med Chem 2016; 115:132-40. [PMID: 27014847 DOI: 10.1016/j.ejmech.2016.03.014] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 03/03/2016] [Accepted: 03/04/2016] [Indexed: 01/19/2023]
Abstract
A range of close analogues of deferiprone have been synthesised. The group includes mono-, di- and tri-methyl-3-hydroxy-4(1H)-pyridones. These compounds were found to possess similar pFe(3+) values to that of deferiprone, with the exception of the 2.5-dimethylated derivatives. Surprisingly the NH-containing hydroxy-4(1H)-pyridones were found to be marginally more lipophilic than the corresponding N-Me containing analogues. This same group are also metabolised less efficiently by Phase 1 hydroxylating enzymes than the corresponding N-Me analogues. As result of this study, three compounds have been identified for further investigation centred on neutropenia and agranulocytosis.
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Affiliation(s)
- Yuan-Yuan Xie
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
| | - Zidong Lu
- Institute of Pharmaceutical Science, King's College London, UK
| | - Xiao-Le Kong
- Institute of Pharmaceutical Science, King's College London, UK
| | - Tao Zhou
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Sukhi Bansal
- Institute of Pharmaceutical Science, King's College London, UK
| | - Robert Hider
- Institute of Pharmaceutical Science, King's College London, UK.
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14
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A field effect transistor biosensor with a γ-pyrone derivative engineered lipid-sensing layer for ultrasensitive Fe3+ ion detection with low pH interference. Biosens Bioelectron 2014; 54:571-7. [DOI: 10.1016/j.bios.2013.11.051] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Revised: 11/11/2013] [Accepted: 11/16/2013] [Indexed: 11/23/2022]
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15
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Qiu YF, Yang F, Qiu ZH, Zhong MJ, Wang LJ, Ye YY, Song B, Liang YM. Brønsted Acid Catalyzed and NIS-Promoted Cyclization of Diynones: Selective Synthesis of 4-Pyrone, 4-Pyridone, and 3-Pyrrolone Derivatives. J Org Chem 2013; 78:12018-28. [DOI: 10.1021/jo402055a] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Yi-Feng Qiu
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Fang Yang
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Zi-Hang Qiu
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Mei-Jin Zhong
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Li-Jing Wang
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Yu-Ying Ye
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Bo Song
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Yong-Min Liang
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, People’s Republic of China
- State
Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical
Physics, Chinese Academy of Science, Lanzhou 730000, People’s Republic of China
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Krishnakumar V, Barathi D, Mathammal R, Balamani J, Jayamani N. Spectroscopic properties, NLO, HOMO-LUMO and NBO of maltol. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 121:245-253. [PMID: 24247097 DOI: 10.1016/j.saa.2013.10.068] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2013] [Revised: 10/09/2013] [Accepted: 10/17/2013] [Indexed: 06/02/2023]
Abstract
Maltol (3-hydroxy-2-methyl-4pyrone) is widely known as metal ions chelator with many practical applications in catalysis, medicine and food chemistry. The FTIR and FT-Raman spectra of maltol have been recorded in the region 4000-400 and 4000-50 cm(-1), respectively. The conformational analysis, optimized geometry, frequency and intensity of the vibrational bands of maltol were obtained by the density functional theory (DFT) with complete relaxation in the potential energy surface using 6-31G* basis set. The observed and the calculated frequencies are found to be in good agreement. The (1)H and (13)C NMR spectra have been recorded and (1)H and (13)C nuclear magnetic resonance chemical shifts of the molecule were also calculated using the gauge independent atomic orbital (GIAO) method and their respective linear correlations were obtained. The electronic properties HOMO and LUMO energies were measured. Thermodynamic properties (heat capacity, entropy and enthalpy) of the title compound were calculated. The Mulliken charges, the values of electric dipole moment (μ) of the molecule were computed using DFT calculations. The first order hyperpolarizability (βo) and related properties (β, αo and Δα) of both are calculated using B3LYP/6-31G* method on the finite-field approach. The calculated first hyperpolarizability shows that the molecules are an attractive molecule for future applications in non-linear optics. The intramolecular contacts have been interpreted using Natural Bond Orbital (NBO).
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Affiliation(s)
- V Krishnakumar
- Department of Physics, Periyar University, Salem 636011, India.
| | - D Barathi
- Department of Physics, N.K.R. Govt. Arts College (W), Namakkal 637001, India
| | - R Mathammal
- Department of Physics, Sri Sarada College for Women (Autonomous), Salem 636016, India
| | - J Balamani
- Department of Chemistry, Chikkanna Govt. Arts College, Tiruppur 641602, India
| | - N Jayamani
- Department of Physics, Vivekananda College of Arts and Sciences, Tiruchengode for Women (Autonomous), Namakkal 637205, India
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Emami S, Ghafouri E, Faramarzi MA, Samadi N, Irannejad H, Foroumadi A. Mannich bases of 7-piperazinylquinolones and kojic acid derivatives: Synthesis, in vitro antibacterial activity and in silico study. Eur J Med Chem 2013; 68:185-91. [DOI: 10.1016/j.ejmech.2013.07.032] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Revised: 07/15/2013] [Accepted: 07/18/2013] [Indexed: 10/26/2022]
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18
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Zhou B, Kong CH, Li YH, Wang P, Xu XH. Crabgrass (Digitaria sanguinalis) allelochemicals that interfere with crop growth and the soil microbial community. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:5310-7. [PMID: 23678893 DOI: 10.1021/jf401605g] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Three chemicals, veratric acid, maltol, and (−)-loliolide, were isolated from crabgrass and their structures were identified by spectroscopic analysis. The chemicals were detected in crabgrass root exudates and rhizosphere soils, and their concentrations ranged from 0.16 to 8.10 μg/g. At an approximate concentration determined in crabgrass root exudates, all chemicals significantly inhibited the growth of wheat, maize, and soybean and reduced soil microbial biomass carbon. Phospholipid fatty acid profiling showed that veratric acid, maltol, and (−)-loliolide affected the signature lipid biomarkers of soil bacteria, actinobacteria, and fungi, resulting in changes in soil microbial community structures. There were significant relationships between crop growth and soil microbes under the chemicals' application. Chemical-specific changes in the soil microbial community generated negative feedback on crop growth. The results suggest that veratric acid, maltol, and (−)-loliolide released from crabgrass may act as allelochemicals interfering with crop growth and the soil microbial community.
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Affiliation(s)
- Bin Zhou
- Institute of Applied Ecology, Chinese Academy of Sciences , Shenyang 110016, China
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19
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Aytemir MD, Özçelik B, Karakaya G. Evaluation of bioactivities of chlorokojic acid derivatives against dermatophytes couplet with cytotoxicity. Bioorg Med Chem Lett 2013; 23:3646-9. [DOI: 10.1016/j.bmcl.2013.03.098] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2013] [Revised: 03/22/2013] [Accepted: 03/23/2013] [Indexed: 10/26/2022]
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20
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Nguyen Duc T, El Zein R, Raimundo JM, Dallaporta H, Charrier AM. Label free femtomolar electrical detection of Fe(iii) ions with a pyridinone modified lipid monolayer as the active sensing layer. J Mater Chem B 2013; 1:443-446. [DOI: 10.1039/c2tb00438k] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Enyedy ÉA, Dömötör O, Varga E, Kiss T, Trondl R, Hartinger CG, Keppler BK. Comparative solution equilibrium studies of anticancer gallium(III) complexes of 8-hydroxyquinoline and hydroxy(thio)pyrone ligands. J Inorg Biochem 2012; 117:189-97. [DOI: 10.1016/j.jinorgbio.2012.08.005] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2012] [Revised: 08/16/2012] [Accepted: 08/17/2012] [Indexed: 11/26/2022]
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22
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Yamaguchi T, Watanabe S, Matsumura Y, Tokuoka Y, Yokoyama A. Synthesis of oxovanadium complexes and their apoptosis-inducing activity in leukemia cells. Chem Pharm Bull (Tokyo) 2012; 60:508-12. [PMID: 22466734 DOI: 10.1248/cpb.60.508] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Vanadium complexes with different ligands were synthesized and evaluated for antiproliferative activity on U937 cells. The alkyl chain length of the ligands affected the antiproliferative activity, and two complexes-3b and 4-exhibited strong activities with IC(50) values of 6.02 and 3.90 μM respectively. Annexin V staining and DNA ladder formation indicated that these complexes induced apoptosis in U937 cells.
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Affiliation(s)
- Tomoko Yamaguchi
- Department of Materials and Life Science, Faculty of Science and Technology, Seikei University, 3–3–1 Kichijojikitamachi, Musashino, Tokyo
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23
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Enyedy ÉA, Hollender D, Kiss T. Lipophilicity of kinetically labile metal complexes through the example of antidiabetic Zn(II) and VO(IV) compounds. J Pharm Biomed Anal 2011; 54:1073-81. [DOI: 10.1016/j.jpba.2010.12.025] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2010] [Revised: 12/13/2010] [Accepted: 12/16/2010] [Indexed: 11/15/2022]
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24
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Kandioller W, Kurzwernhart A, Hanif M, Meier SM, Henke H, Keppler BK, Hartinger CG. Pyrone derivatives and metals: From natural products to metal-based drugs. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2010.11.010] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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25
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26
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Scott LE, Telpoukhovskaia M, Rodríguez-Rodríguez C, Merkel M, Bowen ML, Page BDG, Green DE, Storr T, Thomas F, Allen DD, Lockman PR, Patrick BO, Adam MJ, Orvig C. N-Aryl-substituted 3-(β-D-glucopyranosyloxy)-2-methyl-4(1H)-pyridinones as agents for Alzheimer's therapy. Chem Sci 2011. [DOI: 10.1039/c0sc00544d] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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27
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Sakurai H, Katoh A, Kiss T, Jakusch T, Hattori M. Metallo-allixinate complexes with anti-diabetic and anti-metabolic syndrome activities. Metallomics 2010; 2:670-82. [PMID: 21072358 DOI: 10.1039/c0mt00025f] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Metabolic syndrome and the accompanied diabetes mellitus are both important diseases worldwide due to changes of lifestyle and eating habits. The number of patients with diabetes worldwide is estimated to increase to 300 million by 2025 from 150-220 million in 2010. There are two main types of diabetes. In type 1 diabetes, caused by destruction of pancreatic β-cells resulting in absolute deficiency of intrinsic insulin secretion, the patients require exogenous insulin injections several times a day. In type 2 diabetes, characterized by insulin resistance and abnormal insulin secretion, the patients need exercise, diet control and/or several types of hypoglycemics. The idea of using metal ions for the treatment of diabetes originates from the report in 1899. The research on the role of metal ions that may contribute to the improvement of diabetes began. The orally active metal complexes containing vanadyl (oxidovanadium(iv)) ion and cysteine or other ligands were first proposed in 1990, and a wide class of vanadium, copper and zinc complexes was found to be effective for treating diabetes in experimental animals. We noticed a characteristic compound, allixin, which is a non-sulfur component in dry garlic. Its vanadyl and zinc complexes improved both types of diabetes following oral administration in diabetic animals. We then developed a new zinc complex with thioxoallixin-N-methyl (tanm), which is both a sulfur and N-methyl derivative of allixin, and found that this complex improves not only diabetes but also metabolic syndrome. Furthermore, new zinc complexes inspired from the zinc-tanm were prepared; one of them exceeded the activity of zinc-tanm. The mechanism of such complexes was studied in adipocytes. We describe here the usefulness of the development of metal-based complexes in the context of potential therapeutic application for diabetes and metabolic syndrome.
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Affiliation(s)
- Hiromu Sakurai
- Department of Pharmaco-analytical and Biocoordination Chemistry, Faculty of Pharmaceutical Sciences, Suzuka University of Medical Science, 3500-3 Minami-Tamagaki-cho, Suzuka, Mie, Japan.
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28
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Li MS, Ma L, Zhang XC, Huang ZS, Xiao SH, Gu LQ. Synthesis of substituted 1,2-benzoquinones and substituted 3-hydroxy-4 (1H)-pyridinones: Application of oxidation-Michael addition in organic synthesis. CHINESE J CHEM 2010. [DOI: 10.1002/cjoc.19990170410] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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29
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Aytemir MD, Özçelik B. Synthesis and biological activities of new Mannich bases of chlorokojic acid derivatives. Med Chem Res 2010. [DOI: 10.1007/s00044-010-9338-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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30
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Aytemir MD, Çalış Ü. Anticonvulsant and Neurotoxicity Evaluation of Some Novel Kojic Acids and Allomaltol Derivatives. Arch Pharm (Weinheim) 2010; 343:173-81. [DOI: 10.1002/ardp.200900236] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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31
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Katoh A, Yokoyama H, Matsumura Y, Yoshikawa Y, Yasui H, Sakurai H. Synthesis of Metal Complexes with 1-Substituted 3-Hydroxy-2(1H)-pyridinethiones and Their Insulin-Mimetic Activities. HETEROCYCLES 2010. [DOI: 10.3987/com-09-11862] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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32
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Scott LE, Orvig C. Medicinal Inorganic Chemistry Approaches to Passivation and Removal of Aberrant Metal Ions in Disease. Chem Rev 2009; 109:4885-910. [DOI: 10.1021/cr9000176] [Citation(s) in RCA: 266] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Lauren E. Scott
- Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia, Vancouver, Canada
| | - Chris Orvig
- Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia, Vancouver, Canada
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33
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Katoh A, Harada K, Saito R. Synthesis and Characterization of Fe(III) and Pb(II) Complexes with 3-Hydroxypyridine-2(1H)-Thiones. Hemoglobin 2009; 30:81-92. [PMID: 16540420 DOI: 10.1080/03630260500455342] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Two kinds of 3-hydroxypyridine-2(1H)-thiones were synthesized. The visible (VIS) spectroscopic analysis indicated that 3-hydroxy-1-methylpyridine-2(1H)-thione (4a) and 3-hydroxy-1-(2-hydroxyethyl)pyridine-2(1H)-thione (4b) formed stable 3:1 Fe(III) complexes. The stability constant of the 4b-Fe(III) complex was estimated from the competitive reaction with EDTA and was found to be 36.7 in logbeta3. Treatment of compound 4b with Ga(acac)3 in D2O:CD3OD (9:1) solution afforded 3:1 Ga(Ill) complex, which was assigned by means of 1H nuclear magnetic resonance (1H NMR) spectroscopy. Treatment of compound 4b with Pb(NO3)2 gave 4b-Pb(II) complex. The Pb(II) selectivity over biologically relevant Mg(ll) and Ca(ll) was remarkably improved by adopting N-hydroxyethyl functionality instead of N-methyl group.
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Affiliation(s)
- Akira Katoh
- Department of Materials and Life Science, Faculty of Science and Technology, Seikei University, Tokyo, Japan.
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34
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Yan YL, Miller MT, Cao Y, Cohen SM. Synthesis of hydroxypyrone- and hydroxythiopyrone-based matrix metalloproteinase inhibitors: developing a structure-activity relationship. Bioorg Med Chem Lett 2009; 19:1970-6. [PMID: 19261472 PMCID: PMC2833267 DOI: 10.1016/j.bmcl.2009.02.044] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2009] [Accepted: 02/10/2009] [Indexed: 11/22/2022]
Abstract
The zinc(II)-dependent matrix metalloproteinases (MMPs) are associated with a variety of diseases. Development of inhibitors to modulate MMP activity has been an active area of investigation for therapeutic development. Hydroxypyrones and hydroxythiopyrones are alternative zinc-binding groups (ZBGs) that, when combined with peptidomimetic backbones, comprise a novel class of MMP inhibitors (MMPi). In this report, a series of hydroxypyrone- and hydroxythiopyrone-based MMPi with aryl backbones at the 2-, 5-, and 6-positions of the hydroxypyrone ring have been synthesized. Synthetic routes for developing inhibitors with substituents at two of these positions (so-called double-handed inhibitors) are also explored. The MMP inhibition profiles and structure-activity relationship of synthesized hydroxypyrones and hydroxythiopyrones have been analyzed. The results here show that the ZBG, the position of the backbone on the ZBG, and the nature of the linker between the ZBG and backbone are critical for MMPi activities.
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Affiliation(s)
- Yi-Long Yan
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093-0358, United States
| | - Melissa T. Miller
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093-0358, United States
| | - Yuchen Cao
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093-0358, United States
| | - Seth M. Cohen
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093-0358, United States
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35
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Hryniewicz K, Stadnicka K, Pattek-Janczyk A. Crystal structure and vibrational spectra of 2-chloromethyl-5-hydroxy-4H-pyran-4-one and 5-hydroxy-2-methyl-4H-pyran-4-one as potential ligands for Fe(III) complexes. J Mol Struct 2009. [DOI: 10.1016/j.molstruc.2008.09.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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36
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Katoh A, Matsumura Y, Yoshikawa Y, Yasui H, Sakurai H. Evaluation of insulin-mimetic activities of vanadyl and zinc(II) complexes from the viewpoint of heterocyclic bidentate ligands. J Inorg Biochem 2008; 103:567-74. [PMID: 19162327 DOI: 10.1016/j.jinorgbio.2008.12.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2008] [Revised: 12/05/2008] [Accepted: 12/10/2008] [Indexed: 10/21/2022]
Abstract
Vanadyl sulfate (VOSO(4)) has been clinically tested in diabetic patients since 1995. Oral administrations of VOSO(4) improved the type 2 diabetic state with respect to plasma glucose, HbA(1c), and fructosamine levels. The development of toxicity by increasing the administration of VOSO(4) should be avoided. One method was the utilization of vanadyl complexes with coordination compounds that are low-toxic and low-molecular-weight ligands to enhance the permeation of the metal ion to lipid bilayer membrane. Over a decade we have focused on a variety of heterocyclic compounds as bidentate ligands for metal ions. Vanadyl and zinc(II) complexes of 1-substituted 3-hydroxy-2-methyl-4(1H)-pyridinethiones, 4,5,6-substituted 1-hydroxy-2(1H)-pyrimidinones, 4-(p-substituted)phenyl-3-hydroxythiazole-2(3H)-thiones, 3-hydroxypyrone, 1-alkyl- or 1-phenylalkyl-3-hydroxy-2(1H)-pyridinethiones, optically active 1-substituted 3-hydroxy-4(1H)-pyridinethiones, and 5-dialkylsulfonamido- or 5,7-bis(dialkylsulfonamido)-8-hydroxyquinolines were prepared, and their insulin-mimetic activities were evaluated in terms of IC(50) values which stand for a 50% inhibitory concentration of the free fatty acid release from isolated rat adipocytes. In this article, the relationship between the insulin-mimetic activity and the partition coefficient, the chirality, the substituent effect, molecular weight, the pK(a) value, and the coordination mode was discussed. In vivo blood glucose-lowering effects of the vanadyl complex with 1-hydroxy-4,6-dimethyl-2(1H)-pyrimidinone in streptozotocin (STZ)-induced diabetic rats and the zinc(II) complexes with 4-(p-chlorophenyl)thiazole- and 4-methylthiazole-2(3H)-thione in KK-A(y) mice were also discussed.
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Affiliation(s)
- Akira Katoh
- Department of Materials and Life Science, Faculty of Science and Technology, Seikei University, 3-3-1 Kitamachi, Kichijoji, Musashino-shi, Tokyo, Japan.
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Farard J, Lanceart G, Logé C, Nourrisson MR, Cruzalegui F, Pfeiffer B, Duflos M. Design, synthesis and evaluation of new 6-substituted-5-benzyloxy-4-oxo-4H-pyran-2-carboxamides as potential Src inhibitors. J Enzyme Inhib Med Chem 2008; 23:629-40. [PMID: 18686137 DOI: 10.1080/14756360802205299] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
Src family kinases (SFKs) are nonreceptor tyrosine kinases that are reported to be critical for cancer progression. Inhibiting the catalytic activity of these proteins has become one of the major therapeutic concepts in contemporary drug discovery. We report here the design and the synthesis of novel 6-substituted-5-benzyloxy-4-oxo-4H-pyran-2-carboxamides as potential inhibitors of Src kinase. The synthesis of these derivatives and the preliminary results of biological activity will be discussed.
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Affiliation(s)
- Julien Farard
- Departement de Pharmacochimie, Faculté de Pharmacie, Université de Nantes, Nantes Atlantique Universites, Nantes, France.
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Burgess J, Rangel M. Hydroxypyranones, hydroxypyridinones, and their complexes. ADVANCES IN INORGANIC CHEMISTRY 2008. [DOI: 10.1016/s0898-8838(08)00005-6] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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39
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Yan YL, Cohen SM. Efficient synthesis of 5-amido-3-hydroxy-4-pyrones as inhibitors of matrix metalloproteinases. Org Lett 2007; 9:2517-20. [PMID: 17521196 PMCID: PMC2531216 DOI: 10.1021/ol0707665] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
3-hydroxy-4-pyrones are a class of important metal chelators with versatile medicinal applications. An efficient pathway for the preparation of new 5-amido-3-hydroxy-4-pyrone derivatives has been developed. The synthesized 5-amido-3-hydroxy-4-pyrones have been evaluated as inhibitors of matrix metalloproteinases.
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Affiliation(s)
- Yi-Long Yan
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0358
| | - Seth M. Cohen
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0358
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40
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Flematti GR, Goddard-Borger ED, Merritt DJ, Ghisalberti EL, Dixon KW, Trengove RD. Preparation of 2H-furo[2,3-c]pyran-2-one derivatives and evaluation of their germination-promoting activity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2007; 55:2189-94. [PMID: 17316021 DOI: 10.1021/jf0633241] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
The butenolide, 3-methyl-2H-furo[2,3-c]pyran-2-one (1), has recently been identified as the germination stimulant present in smoke that promotes the germination of seeds from a wide range of plant species. In this paper, we describe the preparation of a number of analogues of 1 and compare their efficacy in promoting seed germination of three highly smoke-responsive plant species, Lactuca sativa L. cv. Grand Rapids (Asteraceae), Emmenanthe penduliflora Benth. (Hydrophyllaceae), and Solanum orbiculatum Poir. (Solanaceae). The results show that the methyl substituent at C-3 in 1 is important for germination-promoting activity while substitution at C-7 reduces activity. In contrast, bioactivity is mostly retained with analogues substituted at C-4 or C-5.
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Affiliation(s)
- Gavin R Flematti
- School of Biomedical, Biomolecular and Chemical Sciences, The University of Western Australia, Crawley, WA 6009, Australia.
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Christinat N, Scopelliti R, Severin K. Multicomponent Assembly of Boron-Based Dendritic Nanostructures. J Org Chem 2007; 72:2192-200. [PMID: 17315935 DOI: 10.1021/jo062607p] [Citation(s) in RCA: 102] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new synthetic strategy for the construction of boron-based macrocycles and dendrimers is described. Condensation of aryl- and alkylboronic acids with 3,4-dihydroxypyridine is shown to give pentameric macrocycles in which five boronate esters are connected by dative B-N bonds. Three macrocycles have been characterized crystallographically. The boron atoms of these assemblies represent chiral centers, and the assembly process is highly diastereoselective. Attachment of amino or aldehyde groups in the meta position of the arylboronic acid building blocks does not interfere with macrocyclization. This allows performing multicomponent assembly reactions between functionalized boronic acids, dihydroxypyridine ligands, and amines or aldehydes, respectively. Reaction of 3,5-diformylphenylboronic acid, 3,4-dihydroxypyridine, and a primary amine R-NH2 (R=Ph, Bn) gives dendritic nanostructures having a pentameric macrocyclic core and 10 amine-derived R groups in their periphery. Combination of 3,5-diformylphenylboronic acid with 2,3-dihydroxypyridine and the dendron 3,5-(benzyloxy)benzylamine, on the other hand, results in formation of a dendrimer with a tetrameric macrocyclic core and eight dendrons in its periphery.
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Affiliation(s)
- Nicolas Christinat
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
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Adachi Y, Yoshida J, Kodera Y, Katoh A, Takada J, Sakurai H. Bis(allixinato)oxovanadium(IV) Complex Is a Potent Antidiabetic Agent: Studies on Structure−Activity Relationship for a Series of Hydroxypyrone−Vanadium Complexes. J Med Chem 2006; 49:3251-6. [PMID: 16722643 DOI: 10.1021/jm060229a] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
There is an urgent medical need for orally effective drugs to replace insulin injections for the treatment of diabetes mellitus. Vanadium complexes with insulin-mimetic activities have recently been proposed as candidates as new antidiabetic drugs. Following in vitro and in vivo studies on a group of bis(3-hydroxy-4-pyronato)oxovanadium(IV) (1) complexes with VO(O4) coordination mode, bis(allixinato)oxovanadium(IV) (3) which contains allixin, a garlic component, was found to be the most potent antidiabetic agent among them. Complex 3 with a high in vitro insulin-mimetic activity in terms of both free fatty acid (FFA)-release inhibitory and glucose-uptake enhancing activities in isolated rat adipocytes exhibited a high hypoglycemic effect in type 1 diabetic model mice by both intraperitoneal injections and oral administrations. Complex 3 is thus proposed to be one of the most effective candidates for antidiabetic therapy.
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Affiliation(s)
- Yusuke Adachi
- Department of Analytical and Bioinorganic Chemistry, Kyoto Pharmaceutical University, Kyoto 607-8414, Japan
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Kalisiak J, Skowronek P, Gawroński J, Jurczak J. New Macrocycles with Planar Chirality—Synthesis and Determination of Absolute Configurations. Chemistry 2006; 12:4397-406. [PMID: 16557625 DOI: 10.1002/chem.200501409] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
A versatile system for preparing macrocyclic compounds with planar chirality is presented. In this system chiral diazacoronands are synthesized readily from lariat-type diesters 13 and 14 and unsymmetrical diamines 7, 8, 12, 15, and 16 under non-high-dilution conditions. The title compounds were subjected to structural analysis by X-ray crystallography and circular dichroism spectroscopy, and absolute configurations for two representative examples (compounds 2 and 3) were assigned by molecular modeling. The correctness of the theoretical approach was verified by the crystallographic results obtained experimentally.
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Affiliation(s)
- Jarosław Kalisiak
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
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Thompson KH, Barta CA, Orvig C. Metal complexes of maltol and close analogues in medicinal inorganic chemistry. Chem Soc Rev 2006; 35:545-56. [PMID: 16729148 DOI: 10.1039/b416256k] [Citation(s) in RCA: 105] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The family of hydroxypyrones and close congeners, the hydroxypyridinones, is a particularly versatile class of ligands. The most widely investigated for medicinal applications are the 3-hydroxy-4-pyrones and the 1,2- 3,2- and 3,4-hydroxypyridinones. Key features of these ligands are: a six-membered ring, with a ring N or O atom either ortho or para to a ketone group, and two ortho exocyclic oxygen atoms. Readily functionalizable, the hydroxypyrones and hydroxypyridinones allow one to achieve a range of di- and trivalent metallocomplex stabilities and can include tissue or molecular targeting features by design. Research over the past several decades has greatly expanded the array of ligands that are the subject of this critical review. Ligand applications as diverse as iron removal or supplementation, contrast agents in imaging applications, and mobilization of undesirable excess metal ions will be surveyed herein.
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Affiliation(s)
- Katherine H Thompson
- Medicinal Inorganic Chemistry Group, Chemistry Department, University of British Columbia, Vancouver, BC, Canada V6T 1Z1.
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Yamaguchi M, Wakasugi K, Saito R, Adachi Y, Yoshikawa Y, Sakurai H, Katoh A. Syntheses of vanadyl and zinc(II) complexes of 1-hydroxy-4,5,6-substituted 2(1H)-pyrimidinones and their insulin–mimetic activities. J Inorg Biochem 2006; 100:260-9. [PMID: 16387366 DOI: 10.1016/j.jinorgbio.2005.11.010] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2005] [Revised: 11/18/2005] [Accepted: 11/18/2005] [Indexed: 10/25/2022]
Abstract
Control of the glucose level in the blood plasma has been achieved in vitro and in vivo by administration of vanadium and zinc in form of inorganic salts. It has been shown that elements are poorly absorbed in their inorganic forms and required high doses which have been associated with undesirable side effects. Many researchers, therefore, have focused on metal complexes that were prepared from VOSO(4) or ZnSO(4) and low-molecular-weight bidentate ligands. Seven kinds of 1-hydroxy-4,6-disubstituted and 1-hydroxy-4,5,6-trisubstituted-2(1H)-pyrimidinones were synthesized by reaction of N-benzyloxyurea and beta-diketones and subsequent removal of the protecting group. Six kinds of 1-hydroxy-4-(substituted)amino-2(1H)-pyrimidinones were synthesized by the substitution reaction of 1-benzyloxy-4-(1',2',4'-triazol-1'-yl)-2(1H)-pyrimidinone with various alkyl amines or amino acids. Treatment with VOSO(4) and ZnSO(4) or Zn(OAc)(2) afforded vanadyl(IV) and zinc(II) complexes which were characterized by means of (1)H NMR, IR, EPR, and UV-vis spectroscopies, and combustion analysis. The in vitro insulin-mimetic activity of these complexes was evaluated from 50% inhibitory concentrations (IC(50)) on free fatty acid (FFA) release from isolated rat adipocytes treated with epinephrine. Vanadyl complexes of 4,6-disubstituted-2(1H)-pyrimidinones showed higher insulin-mimetic activities than those of 4,5,6-trisubstituted ones. On the other hand, Zn(II) complexes showed lower insulin-mimetic activities than VOSO(4) and ZnSO(4) as positive controls. It was found that the balance of the hydrophilicity and/or hydrophobicity is important for higher insulin-mimetic activity. The in vivo insulin-mimetic activity was evaluated with streptozotocin (STZ)-induced diabetic rats. Blood glucose levels were lowered from hyperglycemic to normal levels after the treatment with bis(1,2-dihydro-4,6-dimethyl-2-oxo-1-pyrimidinolato)oxovanadium(IV) by daily intraperitoneal injections. The improvement in glucose tolerance was also confirmed by an oral glucose tolerance test.
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Affiliation(s)
- Mika Yamaguchi
- Department of Materials and Life Science, Faculty of Science and Technology, Seikei University, 3-3-1 Kitamachi, Kichijoji, Musashino-shi, Tokyo 180-8633, Japan
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Brayton D, Jacobsen FE, Cohen SM, Farmer PJ. A novel heterocyclic atom exchange reaction with Lawesson's reagent: a one-pot synthesis of dithiomaltol. Chem Commun (Camb) 2006:206-8. [PMID: 16372107 DOI: 10.1039/b511966a] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A one-pot reaction of maltol with Lawesson's reagent generates dithiomaltol, a thiopyran-4-thione, via an unusual heterocyclic atom exchange (HCAE) reaction; only pyrones with proton or aliphatic substituents undergo the HCAE substitution.
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Affiliation(s)
- Daniel Brayton
- Department of Chemistry, University of California, Irvine, CA 92697-2025, USA
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Pei LX, Huang SL, Shen YD, An LQ, Huang ZS, Li YM, Gu LQ, Bu XZ, Chan AS. Synthesis of novel dihydrofuro[b]-pyridinone derivatives: oxidation coupling of 3-hydroxy-4(1H)-pyridinone with β-dicarbonyl compounds. Tetrahedron Lett 2005. [DOI: 10.1016/j.tetlet.2005.05.078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Pace P, Nizi E, Pacini B, Pesci S, Matassa V, De Francesco R, Altamura S, Summa V. The monoethyl ester of meconic acid is an active site inhibitor of HCV NS5B RNA-dependent RNA polymerase. Bioorg Med Chem Lett 2005; 14:3257-61. [PMID: 15149686 DOI: 10.1016/j.bmcl.2004.03.087] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2004] [Revised: 03/24/2004] [Accepted: 03/29/2004] [Indexed: 11/30/2022]
Abstract
Screening of the in-house sample collection for compounds with HCV NS5B RNA dependent RNA polymerase inhibition led to the identification of a new lead. Afterwards, we discovered that the screening lead, rather than containing the expected structure 1, was comprised of roughly a 1:1 mixture of meconic acid 2 and its monoethyl ester 3, with all inhibitory potency residing with 3. We propose that this compound shares critical common features for activity with alpha,gamma-diketoacids inhibitors previously discovered by our group. SAR around this molecule will be presented to provide an improved basis for structure-based ligand design.
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Affiliation(s)
- Paola Pace
- Department of Medicinal Chemistry and Biochemistry, IRBM-MRL Rome, Via Pontina, Km 30.600, 00040 Pomezia (Rome), Italy.
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Lewis JA, Tran BL, Puerta DT, Rumberger EM, Hendrickson DN, Cohen SM. Synthesis, structure and spectroscopy of new thiopyrone and hydroxypyridinethione transition-metal complexes. Dalton Trans 2005:2588-96. [PMID: 16025179 DOI: 10.1039/b505034k] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The coordination chemistry of several O,S mixed donor ligands, namely thiopyrone and hydroxypyridinethione chelators, with a variety of middle and late first-row transition-metal ions is described. Complexes of 3-hydroxy-2-methyl-4-thiopyrone (thiomaltol) with cobalt(II), copper(II) and zinc(II); 3-hydroxy-1,2-dimethyl-4(1H)-pyridinethione (3,4-HOPTO) with iron(III), nickel(II), copper(II) and zinc(II); and 3-hydroxy-1-methyl-2(1H)-pyridinethione (3,2-HOPTO) with iron(III), nickel(II), copper(II) and zinc(II) have been synthesized and characterized. The structures, absorbance spectroscopy, cyclic voltammetry and superconducting quantum interferometer device (SQUID) measurements of selected metal complexes, as well as ligand protonation constants, are reported. Most of the metal complexes show coordination geometries indicative of a strong trans influence by the O,S chelators. The data presented herein provide the most detailed study of the transition-metal coordination chemistry of both thiopyrone and hydroxypyridinethione O,S donor ligands to date, and provide the basis for the investigation of these ligands in realm of biological inorganic chemistry.
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Affiliation(s)
- Jana A Lewis
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California, USA
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